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Small swarm on SE flank of Newberry Volcano, November 14-15, 2013.

Small swarm on SE flank of Newberry Volcano, November 14-15, 2013.

These earthquakes are the first to be located on the SE flank of Newberry since the Cascades Volcano Observatory added eight stations to the Newberry...

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First earthquakes recorded at Crater Lake by new monitoring network.

First earthquakes recorded at Crater Lake by new monitoring network.

Three small earthquakes are the first to be recorded after installation of a small seismic and geodetic network at Crater Lake in 2011.

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Colombia-USA binational exchange emphasizes emergency planning and preparedness.

Colombia-USA binational exchange emphasizes emergency planning and preparedness.

Scientsts from the Pacific Northwest and Colombia work together to understand and communicate volcano hazards.

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Learn more about volcano monitoring and meet USGS scientists.

Learn more about volcano monitoring and meet USGS scientists.

Meet scientists of the USGS Volcano Science Center and learn more about their jobs as they watch over 161 known active volcanoes within the US and its...

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Earthquakes at Newberry Volcano, April 14-18, 2013

Earthquakes at Newberry Volcano, April 14-18, 2013

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

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Earthquakes at Newberry Volcano, April 08-12, 2013.

Earthquakes at Newberry Volcano, April 08-12, 2013.

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

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Magnitude 2.4 earthquake beneath summit of Mount Rainier at 8:45 am on September 13, 2012.

Magnitude 2.4 earthquake beneath summit of Mount Rainier at 8:45 am on September 13, 2012.

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...

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Small seismic swarm at Mount Hood, August 18, 2012.

Small seismic swarm at Mount Hood, August 18, 2012.

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...

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Small earthquakes at Newberry Volcano, May 18 2012.

Small earthquakes at Newberry Volcano, May 18 2012.

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.

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April 8, 2012, earthquake swarm ~20 km south of Mount Hood

April 8, 2012, earthquake swarm ~20 km south of Mount Hood

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

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Earthquake swarm at Mount Hood

Earthquake swarm at Mount Hood

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

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Monitoring network at Newberry Volcano, Oregon, now fully operational.

Monitoring network at Newberry Volcano, Oregon, now fully operational.

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

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