News

None of these events would have been detected prior to installation of the Newberry monitoring network.

The April 11, 2013, event is the first low-frequency event ever recorded in the Newberry area.

The location and depth of the the September 13, 2012 M 2.4 are entirely consistent with past Rainier earthquakes, and such events are considered by...

Such small swarms are not uncommon at Hood, with the most recent occurring December 11, 2011, and are considered by CVO and the PNSN to be part of the...

The three May 18 earthquakes would not have been detected prior to last summer, when the Newberry seismic network was expanded from 1 to 9 stations.

The swarm is consistent with a tectonic, rather than magmatic, origin.

Starting at approximately 22:00 pm PST on March 7, 2012, a small swarm of earthquakes has been occurring near Mount Hood.

Prior to 2011, only a single seismometer operated by the PNSN was in place on the flanks of the volcano. 

Typically, several earthquake swarms occur each year at Mount Hood, with some lasting for hours, others lasting for days to weeks.

Last Thursday, scientists at HVO's sister observatory in Vancouver, Washington (the USGS Cascades Volcano Observatory, or CVO) received a distress...