All Articles with the Category: Earthquakes & Geophysics

Crack in the earth

Massive Mexican earthquakes warn Southern Californians

"A pair of massive earthquakes in Mexico — 7.6 on Sept. 19 and 6.8 on Sept. 22 — have some in Southern California on edge, wondering whether the Golden State is next. Here, UC Riverside seismologist Abhijit Ghosh weighs in on the likelihood of more shakers, and how to prepare for them. Ghosh is an...
By Jules Bernstein | | Earthquakes & Geophysics

Study reveals the workings of nature’s own earthquake blocker

"A new study finds a naturally occurring “earthquake gate” that decides which earthquakes are allowed to grow into magnitude 8 or greater. "
By JULES BERNSTEIN | | Earthquakes & Geophysics

Earthquakes, chickens, and bugs, oh my!

Two new algorithms could help earthquake early warning systems buy you a few extra seconds to drop, cover, and hold on before the ground begins to shake. Computer scientists at the University of California, Riverside have developed two algorithms that will improve earthquake monitoring and help farmers protect their crops from dangerous insects, or monitor...
| Earthquakes & Geophysics

The thrust of the problem

Anew understanding of a fault that caused a deadly 7.8 magnitude earthquake can help scientists better predict where and when the next big one will hit. For decades, scientists have debated the structure of the Main Himalayan Thrust — the fault responsible for a 2015 earthquake that killed nearly 9,000 people, injured 22,000, and destroyed...
| Earthquakes & Geophysics

Making sense of a ‘7.1’

The fault underneath the town of Ridgecrest, California, has no name because scientists did not discover it until the 7.1 magnitude earthquake it produced on July 5. Now, Abhijit Ghosh, an associate professor of geophysics at UC Riverside, is racing to understand everything hecan about the unnamed fault to help officials prepare for the next...
| Earthquakes & Geophysics
Tectonic Tremor

Earthquake Risk Elevated with Detection of Spontaneous Tectonic Tremor in Anza Gap

"Scientists at the University of California, Riverside have detected spontaneous tectonic tremor — a signature of slow earthquakes deep below the earth’s surface — in the Anza Gap region of the San Jacinto Fault. Tectonic tremors are believed to increase the likelihood of a moderate to large, damaging earthquake occurring close to the earth’s surface...
| Earthquakes & Geophysics

Great California ShakeOut Drill Set for 10:19 a.m. on 10/19

"Faculty, staff, and students at the University of California, Riverside will join about 10 million people expected to participate in the annual Great California ShakeOut earthquake drill on Oct. 19 at 10:19 a.m." Read More
| Earthquakes & Geophysics
Abhijit Ghosh Alaska

Slow Earthquakes Occur Continuously in the Alaska-Aleutian Subduction Zone

"Seismologists at the University of California, Riverside studying earthquakes in the seismically and volcanically active Alaska-Aleutian subduction zone have found that “slow earthquakes” are occurring continuously, and could encourage damaging earthquakes." Read More
| Earthquakes & Geophysics
Shake Out

Earthquake Drill Set for 10:20 a.m. on 10/20

"Faculty, staff, and students at the University of California, Riverside will join about 10 million people expected to participate in the annual Great California ShakeOut earthquake drill on Oct. 20 at 10:20 a.m." Read More
| Earthquakes & Geophysics
Conceptual Diagram

Better Understanding Post-Earthquake Fault Movement

"Preparation and good timing enabled Gareth Funning and a team of researchers to collect a unique data set following the 2014 South Napa earthquake that showed different parts of the fault, sometimes only a few kilometers apart, moved at different speeds and at different times. Aided by GPS measurements made just weeks before the earthquake...

Double Dose of Bad Earthquake News

"A team of researchers, including one from the University of California, Riverside, has discovered that earthquake ruptures can jump much further than previously thought, a finding that could have severe implications on the Los Angeles area and other regions in the world. The scientists found that an earthquake that initiates on one thrust fault can...

Annual Great California ShakeOut earthquake drill

"Faculty, staff and students at the University of California, Riverside will join 10 million people expected to participate in the annual Great California ShakeOut earthquake drill on Thursday, Oct. 15 at 10:15 a.m. The approximately two-minute drill is a voluntary exercise as a first response to a simulated magnitude 7.8 earthquake along the southern San...
| Earthquakes & Geophysics

Seismic Experiment in Alaska Could Shed Light on Slow Earthquakes

"An earthquake expert at the University of California, Riverside is leading a team of seismologists and volcanologists to conduct an experiment in Alaska that will record a variety of seismic events in that state. The experiment will also help better describe the characteristics of the Alaska-Aleutian subduction zone, one of the most seismically active regions...
| Earthquakes & Geophysics
pyroxene crystal

Geologists Simulate Deep Earthquakes in the Laboratory

"More than 20 years ago, geologist Harry Green, now a distinguished professor of the graduate division at the University of California, Riverside, and colleagues discovered a high-pressure failure mechanism that they proposed then was the long-sought mechanism of very deep earthquakes (earthquakes occurring at more than 400 km depth). The result was controversial because seismologists...
| Earthquakes & Geophysics
IE Earthquakes

Scientists "Haven't Figured Out" IE Quake Swarm

"A series of small earthquakes in the Inland Empire has UC Riverside geologist Dr. Gareth Funning struggling to identify just what they are. Jacob Rascon reports for the NBC4 News at 6 p.m. on April 24, 2012." Read More

NASA Science on the Road: Creeping Faults in California

"The annual gathering of Earth and space scientists in San Francisco at the American Geophysical Union meeting draws thousands of researchers, including many involved with NASA research. Gareth Funning of the University of California-Riverside talks about his work monitoring "creeping faults" in the Bay area. His NASA-sponsored project enlists high school students to document the...
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