Advancing earthquake science worldwide
28 January 2020–Earthquakes along a complex series of faults in the upper plate of New Zealand’s northern Hikurangi Subduction Margin were responsible for coastal uplift in the region, according to a new evaluation of local marine terraces. The findings, reported in the Bulletin of the Seismological Society of America, could … Continue Reading »
22 January 2020–The 2019 Ridgecrest earthquake sequence, which startled nearby California residents over the 4 July holiday with magnitude 6.4 and magnitude 7.1 earthquakes, included 34,091 earthquakes overall, detailed in a high-resolution catalog created for the sequence. The catalog, developed by David Shelly at the U.S. Geological Survey in Golden, … Continue Reading »
7 January 2020–The magnitude of the Great Lisbon Earthquake event, a historic and devastating earthquake and tsunami that struck Portugal on All Saints’ Day in 1755, may not be as high as previously estimated. In his study published in the Bulletin of the Seismological Society of America, Joao F. B. … Continue Reading »
3 December 2019–Each hair-thin glass fiber in a buried fiber optic cable contains tiny internal flaws—and that’s a good thing for scientists looking for new ways to collect seismic data in places from a busy urban downtown to a remote glacier. In Seismological Research Letters, California Institute of Technology seismologist … Continue Reading »
19 November 2019–Hand-dug trenches around Leigh Lake in Grand Teton National Park in Wyoming reveal evidence for a previously unknown surface-faulting earthquake in along the Teton Fault—one occurring about 10,000 years ago. Together with evidence from the site of a second earthquake that ruptured around 5,900 years ago, the findings … Continue Reading »
6 November 2019–The season that an earthquake occurs could affect the extent of ground failure and destruction that the event brings, according to a new look at two historical earthquakes that occurred about 100 years ago near Almaty, Kazakhstan. In a paper published in Seismological Research Letters, researchers conclude that … Continue Reading »