1999 hector mine earthquake

We thus calculated the static stress changes following the 1992 Joshua Tree/Landers/Big Bear earthquake sequence on the 1999 M=7.1 Hector Mine rupture plane in southern California. 3 views from 3 of my security cameras show the movement. Forgot I made this video back in 1999 when the Hector Mine Earthquake started. We use a combination of satellite radar and GPS data to estimate the slip distribution of the 1999 M w 7.1 Hector Mine Earthquake, a right-lateral strikeslip earthquake that occurred on a northwest–southeast striking fault in the southern California Mojave Desert. array, Figure 1) Hector Mine earthquake (16 October 1999; M w = 7.1 [U.S. Geological Survey, 2000]) caused significant coseismic deformation of the Landers array and interrupted the monitoring of the Landers postseismic deformation. 1A). Interactive Map. Foreshock activity did not accelerate leading up to the mainshock. Earthquake Engineering Research Institute | 499 14th Street, Suite 220 | Oakland, CA 94612 phone: 510-451-0905 | fax: 510-451-5411 | eeri@eeri.org Video Software we use: https://amzn.to/2KpdCQF Ad-free videos. The M 7.3 June 28, 1992 Landers and M 7.1 October 16, 1999 Hector Mine earthquakes, California, both right lateral strike-slip events on NNW-trending subvertical faults, occurred in close proximity in space and time in a region where recurrence times for surface-rupturing earthquakes are thousands of years. Almost no damage was reported in the immediate area of the earthquake due to the remote location of the epicenter in the Mojave Desert, with no settlements for 14 miles in all directions; however, an Amtrak westbound Southwest Chief (train #3) became an unusual victim of the earthquake. The 1999 Hector Mine Earthquake, Southern California: Vector Near-Field Displacements from ERS InSAR David T. Sandwell, Lydie Sichoix, & Robert B. Smith Published May 2002, SCEC Contribution #619 This suggests that the Hector Mine earthquake was triggered in some fashion by the earlier event. 1999-10-16 09:46:44 (UTC) 34.603°N 116.265°W. 1999 Hector Mine Earthquake. The earthquake originally occurs in the upper gray layer (low-temperature rock), overlying a deeper high-temperature region. Its name comes from a nearby quarry named Hector Mine, which is located 22 kilometers (14 mi) northwest of the epicenter. Abandoned Mine Earthquake Survey Ridgecrest Earthquake Area Abandoned Mine 3, Landers Earthquakes M7.4 - CNN Excerpt with Ann McDermott on the air...June 28, 1992, Landers Earthquake as it happened; various news clips. Only minor injuries were reported, and the trainset suffered repairable damage. Case Study: M7.1 October 16, 1999 Hector Mine, California, Earthquake. It provides an excellent site for a fault-zone trapped wave study. The capture of fault-zone guided waves would give us more information about the Two recent large earthquakes in the Mojave Desert, California-the magnitude 7.3 1992 Landers and magnitude 7.1 1999 Hector Mine earthquakes-have each been followed by elevated crustal strain rates over periods of months and years. The source code for the WIKI 2 extension is being checked by specialists of the Mozilla Foundation, Google, and Apple. The 1999 Hector Mine earthquake occurred on October 16 at 02:46:50 PDT with a moment magnitude of 7.1 and a maximum Mercalli intensity of VII (Very strong). Would you like Wikipedia to always look as professional and up-to-date? Event Name: Hector Mine, California Earthquake Event Date: 10/16/1999 09:46 UTC (10/16/1999 02:46 am PDT) Event Identification: 991016_1 Recorder Type: ETNA, K2, MT. The Hector Mine earthquake was preceeded by a small cluster of foreshocks that begin about 20 hours before the onset of the mainshock. Many people were awakened in Las Vegas, with many reporting dizziness or trouble walking. The train was traveling near the epicenter when the quake struck. The strike-slip earthquake occurred in a remote part of the Mojave Desert, 47 miles (76 km) east-southeast of Barstow, California, inside the Twentynine Palms Marine Corps Base. Its name comes from a nearby quarry named Hector Mine, which is located … 41 km (26 miles) The proximity in time (̃7 years) and space (̃20 km) between the 1992 M=7.3 Landers earthquake and the 1999 M=7.1 Hector Mine event suggests a possible link between the quakes. HYPOCENTRAL DEPTH: 0.01 km However, by the time of the Hector Mine earthquake the rapid postseismic deformation due to the Landers earth- These foreshocks were in the same location as a cluster of aftershocks triggered by the 1992 Landers earthquake. The 1999 M 7.1 Hector Mine earthquake ruptured a complex fault system with a branched structure in the north. People in most of Southern California as well as parts of Arizona and … MAXIMUM SURFACE OFFSET: 5.2 meters. LOCATION: 34° 36' N, 116° 16' W 32 miles north of the town of Joshua Tree 47 miles east-southeast of Barstow On October 16,1999 I was first out,sound asleep, in room 259 in the Union Pacific's Yermo Railroad Inn, affectionatly known as THE BEANERY. M 7.1 - Hector Mine, CA Earthquake. Abstract The 1999 M 7.1 Hector Mine earthquake ruptured a complex fault system with a branched structure in the north. TYPE OF FAULTING: right-lateral strike-slip The sequence of 12 foreshocks of up to magnitude 3.8 that began 20 hours before the Hector Mine event occurred in the same location as a cluster of off-fault aftershocks of the Landers quake.[5]. The earthquake was felt throughout Southern California, as well as in Las Vegas, Nevada. This fault geometry and slip pattern presents a puzzle, because the northwest branch of this system should be in the stress shadow of the … The surface rupture was located entirely within the boundaries of the Twentynine Palms Marine Corps Base, and crossed neither paved roads nor structures (unlike the Landers rupture of 1992). At 2:46:44 am on the morning of Saturday, October 16, 1999, most of southern California, as well as parts of Arizona and Nevada, shook and rattled in the seismic wake of the largest earthquake to strike the area since the M 7.3 Landers earthquake of June 28, 1992. SURFACE RUPTURE LENGTH: approx. The 1999 Hector Mine earthquake occurred on October 16 at 02:46:50 PDT with a moment magnitude of 7.1 and a maximum Mercalli intensity of VII (Very strong). The largest of these foreshocks was a magnitude 3.8 tremor that occurred at 7:41 pm PDT on October 15. At 2:46:44 am on the morning of Saturday, October 16, 1999, most of southern California, as well as parts of Arizona and Nevada, shook and rattled in the seismic wake of the largest earthquake to strike the area since the M 7.3 Landers earthquake of June 28, 1992. I use WIKI 2 every day and almost forgot how the original Wikipedia looks like. The Hector Mine earthquake struck in the early morning hours of October 16, 1999. The 1999 Hector Mine Earthquake: Near-Field Postseismic Deformation from ERS Interferometry 1435 Figure 3. You could also do it yourself at any point in time. 65 mm), Postseismic 1 LOS displacement (large image) between day 4 and 249 after the Hector Mine earthquake (10-mm contour intervals). At about quarter to 3 AM a 7.1 earthquake woke me and a lot of other people up. To install click the Add extension button. It will enhance any encyclopedic page you visit with the magic of the WIKI 2 technology. It will enhance any encyclopedic page you visit with the magic of the WIKI 2 technology. The surface rupture and seismicity patterns of the 1999 Hector Mine earthquake present somewhat of a puzzle to earthquake modelers. The 1999 Mw 7.1 Hector Mine, California, earthquake was preceded by 50 foreshocks (−0.4 ≤ M ≤ 3.7) during the 20 hr before the mainshock. The 1999 Hector Mine earthquake in southern California (magnitude 7.1) occurred only 20 km from, and 7 years after, the 1992 Landers earthquake (magnitude 7.3). The strike-slip earthquake occurred in a remote part of the Mojave Desert, 47 miles (76 km) east-southeast of Barstow, California, inside the Twentynine Palms Marine Corps Base. Source Description of the 1999 Hector Mine, California, Earthquake, Part I: Wavelet Domain Inversion Theory and Resolution Analysis Chen Ji, David J. Wald, & Donald V. Helmberger Published May 2002, SCEC Contribution #661 We present a new procedure for the determination of rupture complexity from a joint inversion of static and seismic data. Stress changes in the crust due to an earthquake can hasten the failure of neighbouring faults and induce earthquake sequences in some cases1,2,3,4,5. Congratulations on this excellent venture… what a great idea! The October 16, 1999 Hector Mine earthquake provided an opportunity to test those procedures (Dreger and Kaverina, 2000). Color scale varies from dark blue, representing the greatest away-from-satellite displacement (max. The strike-slip earthquake occurred in a remote part of the Mojave Desert , 47 miles (76 km) east-southeast of Barstow, California , inside the Twentynine Palms Marine Corps Base . 1999 Izmit, Turkey (Toksoz et al., 1999), and 1999 Hector Mine, California (Scientists from the USGS et al., 2000), events have emphasized that strike-slip earthquakes com-monly take place on faults that display multiple offset fault segments with gaps and different orientations. The combined force of the quake and train caused several rails to come loose and the train derailed. When the mainshock struck, just before 2:47 am PDT, the rupture was somewhat slow in starting. The location of the earthquake was so remote that it caused relatively negligible damage for a magnitude 7.1 earthquake. 13.7 km depth. FAULTS RUPTURED: the Lavic Lake fault and the central section of the Bullion fault; some slip may have occurred along other nearby fault zones (current studies are working on this issue) Two recent large earthquakes in the Mojave Desert, California—the magnitude 7.3 1992 Landers and magnitude 7.1 1999 Hector Mine earthquakes—have each been followed by elevated crustal strain rates over periods of months and years. Hector Mine Earthquake. Damage. The Hector Mine earthquake hit hardest in an area more highly populated by rattlesnakes than people, and most of its energy was spent harmlessly. In the Big Bear area, severe damage was reported. "Lack of Precursory Slip to the Hector Mine Earthquake as constrained by INSAR", "Interactions between the Landers and Hector Mine, California, Earthquakes from Space Geodesy, Boundary Element Modeling, and Time-Dependent Friction". The Hector Mine earthquake occurred on 16 October 1999, within the ECSZ (Fig. We have demonstrated that it is possible to predict near-fault strong shaking from the derived finite fault parameters. We have created a browser extension. Yucca Valley, California - Wikipedia The latter, now considered the mainshock, was the most powerful earthquake to occur in the state in 20 years (after the 1999 Hector Mine earthquake ). The earthquake area was repeatedly imaged by the European Space Agency satellites ERS … Author: Fredo. The Hector Mine earthquake struck in the early morning hours of October 16, 1999. But within about 10 seconds it was over, having ruptured in both directions (bilaterally) from the epicenter: north along the Lavic Lake fault for about 15 kilometers, and south along the Lavic Lake fault and the central Bullion fault for another 26 kilometers. Reports were filed as far north as Carson City, Nevada, where one woman reported waking up, hearing chimes in her house ringing. Date: 07/07/19 17:08. That's it. Originally measured at magnitude 7.0, this earthquake was centered in such a remote part of the Mojave Desert that, instead of being named for the nearest town or the community that suffered the greatest damage, it was named after the closest spot in the list of reference points used by the Southern California Seismic Network: the Hector Mine, an open pit quarry 14 miles (22 km) northwest of the epicenter. The Hector Mine earthquake occurred in the central Mojave Desert and produced several meters of slip along faults of total length ~40 km. 2.5 years after the 1999 Hector Mine quake quake, almost all regional motions above the ‘background’ tectonic motions are due to flow of rock in the lower crust and upper mantle. They were part of a complex pattern of regional stress adjustment that also led to the 1999 Hector Mine earthquake. The 1999 Hector Mine earthquake occurred on October 16 at 02:46:50 PDT with a moment magnitude of 7.1 and a maximum Mercalli intensity of VII (Very strong). MAGNITUDE: MW7.1 TIME: October 16, 1999 / 2:46:44 am PDT Two recent large earthquakes in the Mojave Desert, California - the magnitude 7.3 1992 Landers and magnitude 7.1 1999 Hector Mine earthquakes - have each been followed by elevated crustal strain rates over periods of months and years. The 1999 Hector Mine earthquake … It is thought that the earthquake may have been triggered by the 1992 Landers earthquake seven years prior, since the recurrence interval of large earthquakes in the Eastern California Shear Zone is considered to be in the order of thousands of years.[6][7]. The 7.1 magnitude Hector Mine earthquake on October 16, 1999 had an epicenter 30 mi north of town. 2019 Ridgecrest earthquakes - Wikipedia M7.1 Hector Mine Earthquake of 16-26 October 1999, Southern California Earthquake Data Center, Training and Validation Data Sets for Deep Learning, Division of Geological and Planetary Sciences. The M 7.1 Hector Mine event in particular ruptured a north–south– The Hector Mine earthquake on 16 October 1999, is the second M 7 quake with surface exposure in southern Cali-fornia in the past decades. Surface faulting features imply that in the north of the fault system, the earthquake ruptured a segment of the Lavic Lake Fault with a north-northwesterly strike. That it is possible to predict near-fault strong shaking from the derived finite parameters. 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