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Author: Tiegan Hobbs, PhD

Postdoctoral Seismic Risk Scientist at Natural Resources Canada
Earthquake Insights / Publications / Temblor

Dual disaster planning, communication and reason for hope: a discussion with professor Sam Montano

By Tiegan Hobbs, Ph.D., Postdoctoral Seismic Risk Scientist, Temblor (@THobbsGeo) Sam Montano, professor of emergency management and disaster science, talks about COVID19 and what recovery might look like. Citation: Hobbs, …

Earthquake Insights / Publications / Temblor

Significant Idaho earthquake unlikely to cause unrest in Yellowstone

By Tiegan Hobbs, Ph.D., Postdoctoral Seismic Risk Scientist, Temblor (@THobbsGeo) Shinji Toda, Ph.D., IRIDeS, Tohoku University A magnitude 6.5 earthquake hit a remote region of Idaho on March 31. Despite …

Earthquake Insights / Publications / Temblor

Earthquake strikes Utah amid COVID-19 pandemic

By Tiegan Hobbs, Ph.D., Postdoctoral Seismic Risk Scientist, Temblor (@THobbsGeo) As residents prepared for a pandemic, a magnitude-5.7 quake shook Salt Lake City, causing a chemical spill in the nearby …

Earthquake Insights / Publications / Temblor / Volcano Insights

Shaking on Mars Results in Good Vibrations On Earth

By Tiegan Hobbs, Ph.D., Postdoctoral Seismic Risk Scientist, Temblor (@THobbsGeo) After a year of operating, the largest marsquakes recorded by NASA’s InSight Lander are associated with a nearby volcanic province: …

Earthquake Insights / Earthquake Map / Publications / Temblor

Recovery Underway Following Damaging 24 January 2020 Elazığ Earthquake in Eastern Turkey

Haluk Eyidoğan, Ph.D., Professor of Seismology, Istanbul Technical University Tiegan Hobbs, Ph.D., Postdoctoral Seismic Risk Scientist, Temblor (@THobbsGeo) A destructive magnitude-6.8 earthquake in Turkey leaves thousands homeless. Preceded by foreshocks …

Earthquake Insights / Earthquake Map / Publications / Temblor

More unrest in the Caribbean as Jamaica is struck by a magnitude 7.7 earthquake

By Tiegan E. Hobbs, Ph.D., Postdoctoral Seismic Risk Scientist, Temblor (@THobbsGeo) A large earthquake in the Caribbean Sea, unrelated to the recent Puerto Rico earthquake, caused sinkholes and liquefaction. Despite …

Earthquake Insights / Publications / Temblor

La secuencia sísmica del invierno 2019-2020 en Puerto Rico que ha mantenido a la población en alerta

Alberto M. López, K. Stephen Hughes, and Elizabeth Vanacore Department of Geology, University of Puerto Rico – Mayagüez Puerto Rico Seismic Network, University of Puerto Rico – Mayagüez Citation: López, …

Earthquake Insights / Publications / Temblor

Puerto Rico’s Winter 2019-2020 Seismic Sequence Leaves the Island On Edge

Alberto M. López, K. Stephen Hughes, and Elizabeth Vanacore Department of Geology, University of Puerto Rico – Mayagüez Puerto Rico Seismic Network, University of Puerto Rico – Mayagüez Citation: López, …

Seismometer deployment in Nepal
Earthquake Insights / Publications / Temblor

Gorkha aftershocks reveal seismic hazard in Nepal

by Jennifer Schmidt, Ph.D. (@DrJenGEO) Researchers used seismic signals from 8,000 earthquakes after the Gorkha quake in 2015 to image the fault structure beneath Nepal. They found a system of …

Earthquake Insights / Publications / Temblor

Can science tell when a large earthquake will be followed by an even larger one?

Realtime aftershock statistics may be able to identify whether an even larger event is likely to follow, the authors of a new study argue. Additional prospective testing and more strategic public communication will be needed prior to deployment

Earthquake Insights / Publications / Temblor

Over 66 million people participate in international ShakeOut; prompts evaluation of personal preparedness

Tiegan Hobbs, Ph.D., Postdoctoral Seismic Risk Scientist, Temblor @THobbsGeo Across the planet, people dropped under their tables at 10:17am on 10/17 to practice what to do in the event of …

Earthquake Insights / Publications / Temblor

Holding a mirror to the Loma Prieta earthquake 30 years later

17 Oct 2019 marks the 30th anniversary of the Loma Prieta earthquake, the Bay Area “wake-up call” that revealed our weaknesses and catalyzed our preparation. But the quake has been …

Earthquake Insights / Publications / Temblor

Shaking in California continues: Magnitude 4.7 strikes the San Andreas Fault south of Hollister

Another earthquake with magnitude greater than 4 has struck California in less than a day. It occurred on a portion of the San Andreas Fault which is relatively quiet, but …

Earthquake Insights / Publications / Temblor

Secrets of a Los Angeles blind thrust fault reveal increased seismic risk

A fault lying just a few kilometers below Los Angeles is active, according to new research. The work suggests previous examinations of so-called blind-thrust faults might need to be revisited …

Earthquake Insights / Publications / Temblor

Indonesian “Black Swan” quake: a painful reminder of last year’s M 7.5 Palu shock

Just two days shy of the one-year anniversary of the deadly earthquake and tsunami in Palu, Indonesia, a major earthquake ruptured beneath the nearby island of Maluku on the morning of Thursday, September 26. Local agencies are reporting 20 dead and 2,000 displaced in the wake of this M 6.5 earthquake.

Earthquake Insights / Publications / Temblor

August 1, 2019, magnitude-6.8 Chile earthquake reveals stress is building on the megathrust

Tiegan Hobbs, Ph.D., Postdoctoral Seismic Risk Scientist, Temblor (@THobbsGeo) Sandwiched in the neighborhood of the 1960 M=9.5, 2010 M=8.8, 2015 M=8.3 and 1985 M=7.8 earthquakes, a M=6.8 earthquake went virtually unreported …

Earthquake Insights / Temblor

How Apollo 11s moonquakes changed our understanding of earthquakes

Apollo 11 was the first step for humankind, and a giant leap for seismology. Landing and deploying seismic sensors on the moon required significant advances in instrumentation and shaped the study of earthquakes. Now we know that both planets host tidally triggered earthquakes.

Earthquake Insights / Publications / Temblor

Magnitude 7.1 earthquake rips northwest from the M6.4 just 34 hours later

Ross S. Stein, Ph.D., Tiegan Hobbs, Ph.D., Chris Rollins, Ph.D., Geoffrey Ely, Ph.D., Volkan Sevilgen, M.Sc., and Shinji Toda, Ph.D.   The M 6.4 earthquake loaded the site where the …

Earthquake Insights / Publications / Temblor

Earthquake Just North of Cascadia is Felt Along Canada’s West Coast

While it wasn’t the ‘Big One’, activity near the Revere-Dellwood Fault at the northern end of the Cascadia Subduction Zone is a reminder to Canadians to be prepared for shaking. 

Earthquake Insights / Publications / Temblor

The first Marsquake is recorded

Mars InSight Lander: Marsquakes, Breakthroughs, and Breakdowns

Earthquake Insights / Publications / Temblor

Damaging aftershock hits Japan after 55 years

Could the 2019 M=6.4 Yamagata-Oki, Japan, earthquake be an aftershock of an M=7.5 event that struck in 1964

Earthquake ruptures sputter along for about 10 seconds, after which the big ones accelerate, marking them for future greatness, according to Melgar and Hayes. The panel at left is a horizontally stretched zoom on the dashed box on the left.
Earthquake Insights / Publications / Temblor

Can the size of a large earthquake be foretold just 10 seconds after it starts?

Previous research suggests that not until halfway through the rupture—90 seconds for an M=9 shock—can one predict its magnitude, but new findings could bring this down to 10-15 sec, which would greatly extend and enhance Earthquake Early Warnings.

30 May 2019 M=6.6 El Salvador Quake Occurred in A Region of Very High Risk
Earthquake Insights / Publications / Temblor

Terremoto en El Salvador: Un Evento Moderado en un Área de Riesgo Sísmico Extremo

Debido a su ubicación costa afuera y una profundidad moderada, el temblor del jueves provocó pocos daños. Pero varios indicios sugieren que la suerte de El Salvador no durará por mucho más. Este evento también resalta el creciente número de terremotos extensionales grandes: una tendencia global con implicaciones de peligro importantes.

30 May 2019 M=6.6 El Salvador Quake Occurred in A Region of Very High Risk
Earthquake Insights / Publications / Temblor

El Salvador Earthquake: A Moderate Event in An Area of Extreme Seismic Risk

Because of its offshore location and moderate depth, Thursday’s shock did little damage. But many indications suggest that El Salvador will not stay so lucky for long. This event also highlights the increasing number of large extensional earthquakes: a global trend with important hazard implications.

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