Magnitude 5.2 Arizona Earthquake, Saturday June 28, 2014
The earthquake occurred on the Arizona side of the New Mexico-Arizona border. Its an interesting event inasmuch as the seismicity in the area seems to be increasing, even though the forecast probabilities are fairly low. Below is a map with a circular selection region.
The table of forecast probabilities shows that the chance of an M>5 earthquake in the next 1 year is about 4.7%, but over the next 3 years, is a more substantial 42.4%.
However, the seismic strain release in the area has been accelerating over the last few years. This is rather similar to the situation in Oklahoma where deep injection of drilling fluids is causing a dramatic increase in earthquakes.
About OpenHazards Bloggers
Steven Ward is a Research Geophysicist at
the Institute of Geophysics and Planetary Physics, UC Santa Cruz. He specializes in the quantification and simulation of
natural hazards. Read Steve's blog.
John Rundle is a Distinguished Professor of Physics
and Geology at UC Davis and
the Executive Director of the APEC Collaboration for Earthquake Simulations. He
chaired the Board of Advisors for the Southern California Earthquake Center from 1994 to 1996. Read John's blog.