Rebuilding the Puerto Rico Seismic Network after Irma and Maria

12 January 2018–Three months after two hurricanes hit Puerto Rico and the Virgin Islands, the Puerto Rico Seismic Network (PRSN) has rebounded from a complete failure of Puerto Rico’s power and communication systems, with half of the island’s seismic stations operational as of mid-December 2017. From the earliest days of … Continue Reading »

SSA Announces Election Results

9 January 2018— The Seismological Society of America held its election on 5 January 2018. Election America, Inc., tabulated and validated the votes of current members that were received by the deadline, 12 noon PST on 5 January. The following nominees for Director were elected to a three-year term beginning … Continue Reading »

At Work: Xyoli Pérez-Campos

27 December 2017–Xyoli Pérez-Campos was 11 years old when the magnitude 8.0 Michoacán earthquake struck the Mexico City region on 19 September 1985, collapsing buildings near her home. Her uncle survived the total collapse of the 13-story Nuevo León apartment building, in an area of the city devastated by the … Continue Reading »

ShakeAlert System Continues Progress toward Public Use

6 December 2017–A decade after beginning work on an earthquake early warning system, scientists and engineers are fine-tuning a U.S. West Coast prototype that could be in limited public use in 2018. In two papers published December 6 in Seismological Research Letters, researchers describe the key components and testing platform … Continue Reading »

Parkfield Segment May Host Occasional Large Earthquakes

29 November 2017— Although magnitude 6 earthquakes occur about every 25 years along the Parkfield Segment of the San Andreas Fault, geophysical data suggest that the seismic slip induced by those magnitude 6 earthquakes alone does not match the long-term slip rates on this part of the San Andreas fault, … Continue Reading »