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Data Event Response to the 1 April 2016 Mw 6.2 Earthquake 100km NNE of Chignik Lake, Alaska

Written by David Phillips & Beth Bartel
4 April 2016

Tectonic Summary

From the USGS Event Page:
The Aleutian arc extends approximately 3,000 km from the Gulf of Alaska in the east to the Kamchatka Peninsula in the west. It marks the region where the Pacific plate subducts into the mantle beneath the North America plate. This subduction is responsible for the generation of the Aleutian Islands and the deep offshore Aleutian Trench.

For more information, see the USGS Earthquake Hazards Program event page.

UNAVCO Response

High Rate GPS Data
In response to the Mw 6.2 earthquake 100km NNE of Chignik Lake, Alaska on 2016-04-02 05:50:00 (UTC), UNAVCO is downloading high rate one-sample-per-second (1-sps or 1 Hz) GPS data from PBO stations within 250 km of the epicenter for a 7-day period around the event (day of event ± 3 days). A map of GPS stations being downloaded is shown in Figure 2. These data will be available from ftp://data-out.unavco.org/pub/highrate.

GPS Velocities
The GAGE GPS Analysis Center Coordinator estimates coseismic offsets for any stations that experience horizontal displacements of > 1mm. If such offsets are observed, station offset files will be made available from ftp://data-out.unavco.org/pub/products/event/.

UNAVCO Data and Support

  • Please contact archive-gpsunavco.org for information on data availability

Related Links

Map Center:
Aniakchak Crater, Alaska


Last modified: 2020-02-06  00:23:17  America/Denver