1999 hector mine earthquake

Abstract The 1999 M 7.1 Hector Mine earthquake ruptured a complex fault system with a branched structure in the north. It will enhance any encyclopedic page you visit with the magic of the WIKI 2 technology. We have created a browser extension. When the mainshock struck, just before 2:47 am PDT, the rupture was somewhat slow in starting. Reports were filed as far north as Carson City, Nevada, where one woman reported waking up, hearing chimes in her house ringing. Foreshock activity did not accelerate leading up to the mainshock. This suggests that the Hector Mine earthquake was triggered in some fashion by the earlier event. In the Big Bear area, severe damage was reported. TIME: October 16, 1999 / 2:46:44 am PDT "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". MAXIMUM SURFACE OFFSET: 5.2 meters. 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. 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 RUPTURE LENGTH: approx. Only minor injuries were reported, and the trainset suffered repairable damage. 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). This fault geometry and slip pattern presents a puzzle, because the northwest branch of this system should be in the stress shadow of the … 1999-10-16 09:46:44 (UTC) 34.603°N 116.265°W. Its name comes from a nearby quarry named Hector Mine, which is located … The source code for the WIKI 2 extension is being checked by specialists of the Mozilla Foundation, Google, and Apple. The M 7.1 Hector Mine event in particular ruptured a north–south– Interactive Map. 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). 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. The Hector Mine earthquake struck in the early morning hours of October 16, 1999. Earthquake Engineering Research Institute | 499 14th Street, Suite 220 | Oakland, CA 94612 phone: 510-451-0905 | fax: 510-451-5411 | eeri@eeri.org 13.7 km depth. 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). 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 capture of fault-zone guided waves would give us more information about the 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. Color scale varies from dark blue, representing the greatest away-from-satellite displacement (max. However, by the time of the Hector Mine earthquake the rapid postseismic deformation due to the Landers earth- The 7.1 magnitude Hector Mine earthquake on October 16, 1999 had an epicenter 30 mi north of town. They were part of a complex pattern of regional stress adjustment that also led to the 1999 Hector Mine earthquake. 1A). The Hector Mine earthquake was preceeded by a small cluster of foreshocks that begin about 20 hours before the onset of the mainshock. 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]. 65 mm), LOCATION: 34° 36' N, 116° 16' W 32 miles north of the town of Joshua Tree 47 miles east-southeast of Barstow 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. The Hector Mine earthquake struck in the early morning hours of October 16, 1999. The combined force of the quake and train caused several rails to come loose and the train derailed. I use WIKI 2 every day and almost forgot how the original Wikipedia looks like. 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. MAGNITUDE: MW7.1 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). 3 views from 3 of my security cameras show the movement. We have demonstrated that it is possible to predict near-fault strong shaking from the derived finite fault parameters. The Hector Mine earthquake occurred on 16 October 1999, within the ECSZ (Fig. 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. Date: 07/07/19 17:08. Would you like Wikipedia to always look as professional and up-to-date? Damage. 41 km (26 miles) TYPE OF FAULTING: right-lateral strike-slip 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. The Hector Mine earthquake hit hardest in an area more highly populated by rattlesnakes than people, and most of its energy was spent harmlessly. Case Study: M7.1 October 16, 1999 Hector Mine, California, Earthquake. 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