Northern arizona earthquakes - The 1 December 2014 moment magnitude (M w) 4.7 Arizona earthquake occurred 13 km southwest of the city of Flagstaff, Arizona.Flagstaff is located within the northern Arizona seismic belt and the San Francisco volcanic field. The Flagstaff area is subject to infrequent moderate magnitude earthquakes, such as the 1993 Cataract Creek (M w 5.3) and the …

 
Northern arizona earthquakes

In the past 30 days, Arizona has had 8 quakes of magnitudes up to 3.7: See all recent and past earthquakes in or near Arizona, USA. Frequently updated list, map, and stats. | Strongest past week: Mag.3.6 Mexico: 25 Km Al NOROESTE De GPE VICTORIA (KM.43), BC | Strongest past month: Mag.3.7 Mexico: 12 Km S of Alberto Oviedo Mota, …Northern Arizona earthquake swarm data. According to a study completed by the Utah Geological Survey in 2011-2012, the northern Washington fault has had at least two ground-ruptures within the last 7,000 years or so, with the last quake occurring about 1,000 years ago (Lund et. al., 2015).Northern Arizona earthquake swarm data. According to a study completed by the Utah Geological Survey in 2011-2012, the northern Washington fault has had at least two ground-ruptures within the last 7,000 years or so, with the last quake occurring about 1,000 years ago (Lund et. al., 2015).GIS files (16 MB ZIP file) This database contains information on faults and associated folds in the United States that demonstrate geological evidence of coseismic surface deformation in large earthquakes during the past 1.6 million years (Myr). At the time the Quaternary Fault and Fold database was established (1993), the Quaternary time ...On 3 May 1887, a magnitude 7.2 earthquake rippled across Sonora, Mexico, and southern Arizona. Phil Pearthree, Chief of the Environmental Geology division of the Arizona Geological Survey, revisits that event in this video. The earthquake killed dozens of people and damaged or destroyed several hundred structures. A similar event today would …This Quaternary Fault layer summarizes available data on active Arizona faults. If faults have been active during the past 2.6 million years (Quaternary period), then there is some potential that they could generate small, to moderate, to large earthquakes. Generally, the more active the fault zone, the more likely it is to generate earthquakes ... 816 earthquakes in the past 365 days; The largest earthquake in The Pacific Northwest: today: 1.6 in Yacolt , Washington ... Northern California. Depth: 20 km. 2024-02-23 23:16:59 UTC 1.6 magnitude, 0 km depth Yacolt, Washington, United States. 1.6 …CHINO VALLEY, AZ (3TV/CBS 5) - An earthquake shook a small northern Arizona town on Sunday afternoon. Around 2:00 p.m., the United States Geological …I joined the Survey in April 2007 as the section chief of the Geologic Extension. From 1997 to 2007, I was a professor of geosciences at Arizona Western College, Yuma, Arizona. Prior to that I was a research scientist at the Center for Nuclear Waste Regulatory Analyses in San Antonio, Texas. My training is in physical volcanology with especial ...Jul 23, 2019 · To illustrate Arizona’s earthquake activity, we made three time-lapse videos of felt earthquakes and earthquakes recorded by the ABSN. The 1860 – 2019 >M2.75 earthquake video begins in 1860 and ends in mid-July 2019 with events equal to or greater than M2.75. 6 Nov 2022 ... “The largest of these events was a magnitude 3.7 on May 22, 1988, 4.7 mi S of Colorado City, AZ. The earthquake was felt nearby, as well as in ...Personal loans in Arizona with low APRs & high amounts. Compare loans from Arizona banks/credit unions & national lenders. Find the best loan in Arizona. WalletHub makes it easy to...Earthquakes often happen without warning. They can cause buildings to collapse and heavy items to fall, resulting in injuries and property damage. All 50 states and five U.S. territories are at some risk for earthquakes. Since 1850, Arizona has had more than 20 earthquakes with magnitudes of 5.0 or higher. Welcome to the Arizona Earthquake Information Center (AEIC) website ... We are located in the Geology building (Frier Hall) on the campus of Northern Arizona University. Feel free to explore the pages within via the various links on the left side of the screen. Featured Seismogram. 12-01-2014 M 4.7 Kachina AZ earthquake, Flagstaff record ...Historic Northern Arizona Earthquakes (> VI or 4.9) Year Month/Day Intensity/Magnitude Comments 1892 2/2 VI Felt in Flagstaff 1906 1/25 6.2 Caused minor damage in Flagstaff 1910 9/24 6.0 Minor damage in Flagstaff 1912 8/18 6.2 Rock slides/falls reported ...PHOENIX — A 3.8 magnitude earthquake was reported in northern Arizona Sunday afternoon, according to the U.S. Geological Survey. The quake struck around 2 p.m. near Chino Valley about 15...Arizona Seismic Monitoring Earthquake monitoring in the state of Arizona occurs at a number of seismograph stations throughout the state. Most of these stations are …Feb 17, 2024 16:25 Average A total of 104 earthquakes with a magnitude of four or above have struck within 186 mi (300 km) of Arizona, The United States in the …A magnitude 3.0 earthquake in northern Arizona was the latest tremor recorded in Arizona by the United States Geological Survey. The quake with a depth of 5 kilometers (roughly 3.1 miles)...Earthquakes are shown as circles sized by magnitude (red, < 1 hour; blue, < 1 day, yellow, < 1 week). Click or tap on a circle to view more details about an earthquake, such as location, date/time, magnitude, and links to more information about the quake. Local time is the time of the earthquake in your computer's time zone.5 days ago · A total of 104 earthquakes with a magnitude of four or above have struck within 186 mi (300 km) of Arizona, The United States in the past 10 years. This comes down to a yearly average of 10 earthquakes per year. A relatively large number of earthquakes occurred near Arizona in 2021. A total of 24 earthquakes (mag 4+) were detected within 186 mi ... “We make guilty of our disasters the sun, the moon, and stars”, William Shakespeare Introduction.. Natural disasters kill 60,000 people per year on average, making up about 0.1% of global deaths (Ritchie and Roser, 2019).A single geologic event, e.g., the 2004 Aceh earthquake and tsunami, can kill 100s of thousands and devastate …Welcome to the Arizona Earthquake Information Center (AEIC) website ... We are located in the Geology building (Frier Hall) on the campus of Northern Arizona University. Feel free to explore the pages within via the various links on the left side of the screen. Featured Seismogram. 12-01-2014 M 4.7 Kachina AZ earthquake, Flagstaff record ...Northern’ Arizona’s Washington Fault Zone (WFZ) has been reminding us of its potential for earthquake hazards over the past 3 weeks. Since the later part of December, 20 measureable earthquakes have occurred along the western side of the fault zone, near the AZ-UT border, south of St. George, UT. The WFZ is an active Quaternary …195 of 564. Geologic map of Gray Mountain and Painted Desert, northern Arizona, by George Billingsley and others (US. Geological Survey). Gray Mountain is one of a number of prominent monoclines on Arizona's Colorado Plateau. Billingsley, G.H., Priest, S.S., and Felger, T.J, 2007, Geologic map of the Cameron 30' x 60' quadrangle, Coconino ...July 23, 2023, at 6:55 p.m. CHINO VALLEY, Ariz. (AP) — A 3.8 magnitude earthquake shook a northern Arizona town Sunday afternoon but there was no immediate word on …11 Dec 2023 ... The quake was measured ...6 Nov 2022 ... “The largest of these events was a magnitude 3.7 on May 22, 1988, 4.7 mi S of Colorado City, AZ. The earthquake was felt nearby, as well as in ...Earthquakes often happen without warning. They can cause buildings to collapse and heavy items to fall, resulting in injuries and property damage. All 50 states and five U.S. territories are at some risk for earthquakes. Since 1850, Arizona has had more than 20 earthquakes with magnitudes of 5.0 or higher. 4 Nov 1971 ... The earthquake was recorded by a relatively large number of stations compared to previous earthquakes of a similar size in northern Arizona.Jun 26, 2019 · All Earthquakes Past 30 Days; Topics of Interest. Geologic Map of Arizona; Organizations. Arizona Earthquake Information Center - Northern Arizona University; Arizona Geological Survey; Southern Arizona Seismic Observatory - University of Arizona Yuma, in Arizona’s far southwest corner, is prone to earthquakes originating in southern California and Baja California, Mexico. But earthquakes occur throughout Arizona and communities in central and northern Arizona have recorded damaging earthquakes. This map is one of a series of seismicity maps produced by the U. S. Geological Survey that show earthquake data of individual states or groups of states at the scale of 1:1,000,000. This map shows only those earthquakes with epicenters located within the boundaries of Arizona, even though earthquakes in nearby states or countries may have been felt or …2 earthquakes felt in northern Arizona. The first quake, a 3.2 magnitude, happened at 11:21 a.m. on May 10 west of Highway 89 near Cameron, which is a small town about 50 miles north of Flagstaff ...The 1 December 2014 moment magnitude (M w) 4.7 Arizona earthquake occurred 13 km southwest of the city of Flagstaff, Arizona.Flagstaff is located within the northern Arizona seismic belt and the San Francisco volcanic field. The Flagstaff area is subject to infrequent moderate magnitude earthquakes, such as the 1993 Cataract Creek (M w 5.3) and the …Feb 19, 2020 · Download mp3 (6.79 MB) Earthquakes in AZ: 1852-2011. Watch on. On May 3, 1887, a magnitude 7.6 earthquake struck Arizona from across the Mexico border just south of Douglas. Newspapers, letters and other documents reveal the Pitaycachi quake shook a 770,000-square-mile area (2 million square km.) extending from Prescott to Yuma to El Paso, Texas. Scottsdale has had: (M1.5 or greater) 0 earthquakes in the past 24 hours. 0 earthquakes in the past 7 days. 0 earthquakes in the past 30 days. 1 earthquake in the past 365 days. Earthquakes often happen without warning. They can cause buildings to collapse and heavy items to fall, resulting in injuries and property damage. All 50 states and five U.S. territories are at some risk for earthquakes. Since 1850, Arizona has had more than 20 earthquakes with magnitudes of 5.0 or higher.The Arizona Virtual Earthquake Clearinghouse (AVEC) is a digital repository that collates and publishes data gathered by geoscientists, emergency responders, civil engineers, policymakers, and other stakeholders working in response to Arizona earthquakes. AVEC is expected to officially go live March 2024, but interested parties can connect and ...With increasing station coverage, more of Arizona’s smaller earthquakes are being detected and better located. The latest swarm detected near Roosevelt Lake included 3 events (summary table below) with M 2.5 or greater and 10s of M1.0-1.5s that were too small to be located accurately (Figure 2).CHINO VALLEY, AZ (3TV/CBS 5) - An earthquake shook a small northern Arizona town on Sunday afternoon. Around 2:00 p.m., the United States Geological …and last updated 6:34 PM, Apr 07, 2021. FLAGSTAFF, AZ — Flagstaff was rattled by a small earthquake early Wednesday morning. According to the United States Geological Survey, the 3.3 magnitude ...May 5, 2015 · Three significant earthquakes have shaken the Northern Arizona region in the past six months. May 11, 2023 · COCONINO COUNTY, Ariz. (KVOA) - On Wednesday morning a 3.2 earthquake was recorded in northern Arizona. According to the U.S. Geological Survey a 3.2 earthquake occurred near the town of Cameron ... The last deadly earthquake to hit California was in the state's northern Humboldt County. On December 20, 2022, a magnitude 6.4 earthquake struck the town of Ferndale …Jul 23, 2019 · To illustrate Arizona’s earthquake activity, we made three time-lapse videos of felt earthquakes and earthquakes recorded by the ABSN. The 1860 – 2019 >M2.75 earthquake video begins in 1860 and ends in mid-July 2019 with events equal to or greater than M2.75. Earthquakes ; Enhanced monitoring of seismic activity in the Northern Arizona Seismic Zone - New seismic station. Arizona Geological Survey - University of ...RELATED: USGS: Largest earthquake in swarm shakes Arizona on Friday There have been a total of 505 earthquakes since January 1, 1970, with the highest magnitude quake (5.3) occurring in 1993 ...This Quaternary Fault layer summarizes available data on active Arizona faults. If faults have been active during the past 2.6 million years (Quaternary period), then there is some potential that they could generate small, to moderate, to large earthquakes. Generally, the more active the fault zone, the more likely it is to generate earthquakes ...Each time an earthquake occurs in Arizona, the news media and public asks, “Does Arizona have earthquakes?”. Short answer: yes! In comparison with California, Nevada, and Utah, major earthquakes in Arizona are infrequent. But each year, Arizona Broadband Seismic Network (ABSN) seismometers record hundreds of earthquakes in Arizona. And Arizona is not immune to the effects of earthquakes ... Are you planning to explore Jerome, Arizona? Check out these fun and best things to do in Jerome that you should add to your Arizona travel itinerary. By: Author Kyle Kroeger Poste...Mag. 8.2 earthquake Chignik Earthquake, Gulf of Alaska - Jul 28, 2021 - 2 years ago The largest quake that occurred worldwide during the past 10 years was a magnitude 8.2 earthquake that hit Gulf of Alaska , USA , 2 years ago on Wednesday, Jul 28, 2021, at 09:15 pm (GMT -9).Arizona. This map is one of a series of seismicity maps produced by the U. S. Geological Survey that show earthquake data of individual states or groups of states at the scale of 1:1,000,000. This map shows only those earthquakes with epicenters located within the boundaries of Arizona, even though earthquakes in nearby states or countries may ... 6 Jul 2011 ... ... earthquakes. Geologist Dave Brumbaugh and seismic technician Lisa Linville, both of the Arizona Earthquake Information Center (Northern Arizona ...'Ten earthquakes that rattled Arizona', illustrates that Arizona has earthquakes and the potential for damaging, even life-threatening, earthquakes.Quartzsite has had: (M1.5 or greater) 0 earthquakes in the past 24 hours. 0 earthquakes in the past 7 days. 12 earthquakes in the past 30 days. 28 earthquakes in the past 365 days.I joined the Survey in April 2007 as the section chief of the Geologic Extension. From 1997 to 2007, I was a professor of geosciences at Arizona Western College, Yuma, Arizona. Prior to that I was a research scientist at the Center for Nuclear Waste Regulatory Analyses in San Antonio, Texas. My training is in physical volcanology with especial ...All three occurred northeast of Black Canyon City, Arizona, along the Agua Fria River. The first earthquake was an ML 3.2 that occurred at 8:59 PM local time.Northern Arizona earthquake swarm data. According to a study completed by the Utah Geological Survey in 2011-2012, the northern Washington fault has had at least two ground-ruptures within the last 7,000 years or so, with the last quake occurring about 1,000 years ago (Lund et. al., 2015).Jul 2, 2014 · The largest earthquake recorded in Arizona occurred more than a century ago. On May 3, 1887, Southern Arizona and Sonora, Mexico were shaken by a 7.2 to 7.5 magnitude earthquake. The epicenter was located along the Pitaycachi fault in the San Bernardino Valley in Sonora, about 40 miles south of Douglas, Arizona, but shaking was felt and ... 2 earthquakes felt in northern Arizona. The first quake, a 3.2 magnitude, happened at 11:21 a.m. on May 10 west of Highway 89 near Cameron, which is a small town about 50 miles north of Flagstaff ...93-217 - Arizona Areas - Follow-up on Earthquake. Follow-up reports regarding the magnitude 5.5 earthquake which shook northern Arizona last Thursday have ...CHINO VALLEY, Ariz. (AP) — A 3.8 magnitude earthquake shook a northern Arizona town Sunday afternoon but there was no immediate word on any injuries or damage, according to authorities.The location of the February 1976 Chino Valley earthquake is illustrated. Fault trace locations are adapted from Euge and others (1992), and epicenter data are from the Arizona Earthquake Information Center archives. 5.1.2 Shaking Effects in Yavapai County from the 1906, 1910 and 1912 Northern Arizona Earthquakes 'Ten earthquakes that rattled Arizona', illustrates that Arizona has earthquakes and the potential for damaging, even life-threatening, earthquakes.Jul 23, 2019 · To illustrate Arizona’s earthquake activity, we made three time-lapse videos of felt earthquakes and earthquakes recorded by the ABSN. The 1860 – 2019 >M2.75 earthquake video begins in 1860 and ends in mid-July 2019 with events equal to or greater than M2.75. The 1 December 2014 moment magnitude (M w) 4.7 Arizona earthquake occurred 13 km southwest of the city of Flagstaff, Arizona.Flagstaff is located within the northern Arizona seismic belt and the San Francisco volcanic field. The Flagstaff area is subject to infrequent moderate magnitude earthquakes, such as the 1993 Cataract Creek (M w 5.3) and the …Since 1852, the state of Arizona has had 3,500 seismic events ranging from barely detectable to a whopping 7.5 magnitude quake near Douglas. That happened all the way back in 1887 causing ...Fresh time-lapse videos of historic Arizona Earthquakes 1860-2019. 23 July 2019 / 0 Comments. Submitted by fmconway on23 July 2019 fmconway on23 July 2019Jul 23, 2023 · CHINO VALLEY, AZ (3TV/CBS 5) - An earthquake shook a small northern Arizona town on Sunday afternoon. Around 2:00 p.m., the United States Geological Survey says a 3.8 magnitude earthquake... May 10, 2023 · There are around 500,000 earthquakes between 2.5 to 5.4 magnitude that happen each year. Two earthquakes with magnitudes 3.1 and 3.2 hit near the small town of Cameron, north of Flagstaff, on ... According to the United States Geological Survey, a 3.2 magnitude earthquake was reported 10 miles away from Cameron at 11:21 a.m. Then, around 3 p.m., a 3.1 magnitude earthquake rattled an area ... Arizona seismicity started slow in 2011 but picked up in March, when more than 50% of the events to date occurred. Additionally, seismometers of the Arizona Integrated Seismic Network (AISN) were inundated by the 9.0 M Tohoku earthquake and …NEW: download AEIC earthquake catalog in Google Earth kmz file updated to Aug, 2023 here. All times are Greenwich Mean Time (GMT) Depths are expressed in kilometers and fixed at 10 where necessary. *FLAG = Seismic Research Station at Northern Arizona University, Flagstaff. **Origin Time = Times prior to 1910 are local Arizona time; times 1910 ... 20 Dec 2022 ... A 6.4 magnitude earthquake struck Northern California's Eureka area early Tuesday, the US Geological Survey said, leaving at least two ...Sep 11, 2021 · Significant damage occurred in Arizona, New Mexico, and northern Mexico, where at least 51 people were killed by the temblor (Map of earthquakes and faults, Figure 3). It is the largest historical normal-faulting earthquake in the entire Basin and Range Province. According to the Arizona Geological Survey, a magnitude-3.4 quake took place near Littlefield, Ariz. around 2:20 a.m. There has been a recent swarm of earthquakes in the area since late March ...23 Jul 2023 ... An earthquake with a magnitude of 3.8 was detected in Yavapai County, near Chino Valley Sunday afternoon. ... YAVAPAI COUNTY, AZ — An earthquake ...In 2011, 131 instrumentally detected earthquakes were recorded in Arizona. Most of the seismicity occurred in the north-northwest quadrant of the state. ... event detected was a magnitude 1.6 event that occurred in the northwestern corner of the state where the combination of Northern Arizona University stations, network stations from …

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May 11, 2023 · COCONINO COUNTY, Ariz. (KVOA) - On Wednesday morning a 3.2 earthquake was recorded in northern Arizona. According to the U.S. Geological Survey a 3.2 earthquake occurred near the town of Cameron ... A 6.4 magnitude earthquake impacted Northern California’s Eureka area early Tuesday, according to the US Geological Survey, leaving thousands without power. Follow the latest news here.USGS Earthquake Hazards Program, responsible for monitoring, reporting, and researching earthquakes and earthquake hazards. Jump to Navigation Real-time Seismogram …Earthquakes ; Enhanced monitoring of seismic activity in the Northern Arizona Seismic Zone - New seismic station. Arizona Geological Survey - University of ...Significant damage occurred in Arizona, New Mexico, and northern Mexico, where at least 51 people were killed by the temblor (Map of earthquakes and faults, Figure 3). It is the largest historical normal-faulting earthquake in the …According to the United States Geological Survey, a 3.2 magnitude earthquake was reported 10 miles away from Cameron at 11:21 a.m. Then, around 3 p.m., a 3.1 magnitude earthquake rattled an area ...Dec 2, 2014 · That means that the 7.8 magnitude earthquake that decimated San Francisco in 1906 was almost 45,000 times stronger, in terms of energy release, than the 4.7 earthquake that hit northern Arizona ... 93-217 - Arizona Areas - Follow-up on Earthquake. Follow-up reports regarding the magnitude 5.5 earthquake which shook northern Arizona last Thursday have ...The Arizona Virtual Earthquake Clearinghouse (AVEC) is a digital repository that collates and publishes data gathered by geoscientists, emergency responders, civil engineers, policymakers, and other stakeholders working in response to Arizona earthquakes. AVEC is expected to officially go live March 2024, but interested parties can connect and ...Utah has had: (M1.5 or greater) 1 earthquake in the past 24 hours. 23 earthquakes in the past 7 days. 46 earthquakes in the past 30 days. 322 earthquakes in the past 365 days.A 3.2 magnitude earthquake was reported Wednesday in northern Arizona by the U.S. Geological Survey.. The quake occurred at about 11:30 a.m. near the community of Cameron in Coconino County, the ....

Earthquakes are among the most destructive natural phenomena on the planet. Their potential for damage and harm exceeds that of most other disasters. As with any type of emergency,...

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    Super princess peach | Jul 23, 2023 · Records show that since 1850, Arizona has had more than 20 earthquakes with magnitudes of 5.0 or higher. The USGS reports that the largest earthquake on record in Arizona measured a 5.6 magnitude ... An earthquake in northern Arizona on Sunday afternoon was felt as far away Lordsburg, New Mexico according to incident reports to the United States Geological Survey. The 3.8 magnitude earthquake struck the small town of Paulden, just north of Prescott at approximately 2:00 pm....

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    Indiana food stamps login | The U.S. Geological Survey said the 10:55 a.m. quake, after several revisions, was a magnitude 4.2 and was centered about a mile northwest of Lytle Creek, in the San Gabriel Mountains about 45 ...A series of earthquakes occurred on August 3, 2009 in the Gulf of California, the largest of which was felt in the Tucson and Phoenix area of southern Arizona. The largest event, a magnitude 6.9 occurred at 10:59 am Tucson time. It took the initial P wave a little over one minute to travel from the source to Tucson.AZ Earthquakes 1852-2011 (90 sec.) 11 Arizona’s “Big One”s& impacts 12-17 Engineering for earthquakes 18-20 Safeguarding home and family 21-23 AZGS earthquake services 24-25 Earthquake haiku 26 As do neighboring states and northern Mexico. Destructive ground shaking from earthquakes does not respect state or national boundaries....

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    Food coupons near me | USGS Earthquake Hazards Program, responsible for monitoring, reporting, and researching earthquakes and earthquake hazards. Jump to Navigation Real-time Seismogram Displays. These seismogram displays depict ground motion recorded by seismograph stations in real-time, updated every few minutes. Each plot represents 24 hours of data …GIS files (16 MB ZIP file) This database contains information on faults and associated folds in the United States that demonstrate geological evidence of coseismic surface deformation in large earthquakes during the past 1.6 million years (Myr). At the time the Quaternary Fault and Fold database was established (1993), the Quaternary time ...The reactivation of the Oak Creek fault in northern Arizona appears to be the result of the westward motion of the Colorado plateau producing a strain-rate field that implies NW-SE extension. AB - The 1 December 2014 moment magnitude (Mw) 4.7 Arizona earthquake occurred 13 km southwest of the city of Flagstaff, Arizona. ...

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    Ice cream ahop near me | 23 Jul 2023 ... This blog post offers a detailed account of the 3.8-magnitude earthquake that occurred in Chino Valley, Arizona, on July 23, 2023.The Arizona Geologic Survey (AZGS), working with geoscientists at Northern Arizona University (NAU), built and maintains a statewide seismic monitoring network ......

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    Chest flying | 23 Aug 2015 ... Arizona does not experience earthquakes often, but more than 20 earthquakes having magnitudes greater than 5 have occurred in our history.USGS Earthquake Hazards Program, responsible for monitoring, reporting, and researching earthquakes and earthquake hazards. Jump to Navigation Real-time Seismogram …COCONINO COUNTY, Ariz. (KVOA) - On Wednesday morning a 3.2 earthquake was recorded in northern Arizona. According to the U.S. Geological Survey a 3.2 earthquake occurred near the town of Cameron ......

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    Publix rug doctor rental | Oklahoma, United States has had: (M1.5 or greater) 0 earthquakes in the past 24 hours. 10 earthquakes in the past 7 days. 96 earthquakes in the past 30 days. 1,021 earthquakes in the past 365 days.Untold Arizona: Arizona Earthquakes Reveal A State On Shaky Ground. On May 3, 1887, a magnitude 7.6 earthquake struck Arizona from across the Mexico border just south of Douglas. Newspapers, letters and other documents reveal the Pitaycachi quake shook a 770,000-square-mile area (2 million square km.) extending …Northern Arizona earthquake swarm data. According to a study completed by the Utah Geological Survey in 2011-2012, the northern Washington fault has had at least two ground-ruptures within the last 7,000 years or so, with the last quake occurring about 1,000 years ago (Lund et. al., 2015)....