The Salt Lake Tribune published an article recently on some trenching activity by the Utah Geologic Survey and the USGS to better date past movements on this active fault.
Geologic Hazards
GEER Report Released for 2018 Anchorage Earthquake
The Geotechnical Extreme Events Reconnaissance (GEER) Association has released Version 1.0 of their report for the November 30, 2018, M7.0 Anchorage Earthquake. The GEER Phase I team collaborated closely with a number of other agencies […]
Press Releases
New Study Shows Odds High for Big California Quakes
Released: 4/14/2008 12:02:15 PM
California has more than a 99% chance of having a magnitude 6.7 or larger earthquake within the next 30 years, according scientists using a new model to determine the probability of big quakes.
The likelihood of a major quake of magnitude 7.5 or greater in the next 30 years is 46%-and such a quake is most likely to occur in the southern half of the state.
[Editor] At Left: Figure 1. The colors on this California map represent the UCERF probabilities of having a nearby earthquake rupture (within 3 or 4 miles) of magnitude 6.7 or larger in the next 30 years. As shown in the table, the chance of having such an event somewhere in California exceeds 99%. The 30-year probability of an even more powerful quake of magnitude 7.5 or larger is about 46%. [/Editor]
Geologic Hazards
Magnitude 6.0 Earthquake in Napa, California
Early Sunday morning, a 6.0 Magnitude earthquake struck near Napa California lasting 10 to 20 seconds, sending 120 people to the hospital and damaging buildings, breaking water mains, disrupting power distribution, and breaking gas lines […]