PNSN

PNSN Strong Motion Network

PNSN > Strong Motion

Strong Motion Data Products

Data from the Feb 28, 2001 Nisqually Earthquake:

ShakeMap is the recommended source for strong motion data. ShakeMap currently automatically includes data from both the PNSN and the NSMP. For each event, go to the "Download" area (right hand side of menu bar) to get to the most useful files. For example, the "stationlist.txt" file is an ASCII file containing station name, coordinates, peak velocity and peak acceleration.

Please refer to the list or map below for summary information for earthquakes that occurred prior to the PNSN implementation of ShakeMap. The list and map are no longer being updated.

Older Earthquakes (pre ShakeMap) with Strong Motion Data:

You can access preliminary strong motion Web pages for individual earthquakes by clicking on the date in the event list or by clicking on the epicenters in the map. (Afershocks are disabled on the map). Individual pages have summary information and waveform images (in some cases).

Event Table

Below is a list of significant earthquakes for which the PNSN has recorded strong-motion data. Clicking on a date takes you to a page with summary information and waveform images. In the list below, all times are UTC and all locations are in Washington state, unless otherwise noted.

DateMagnitudeLocation
11/01/2000 3.3 22 km SW of Mt. Vernon.
10/15/2000 3.6 32 km WNW of Poulsbo.
4/11/2000 3.2 5.2 km E of Mt Vernon.
7/3/99 5.1 8.2 km N of Satsop.
4/17/99 3.5 15.9 km W of Mt. Rainier.
1/4/99 3.2 12.0 km ESE of Tacoma.
11/03/98 3.1 11.5 km WSW of Bremerton.
11/26/97 3.7 33 km W of Poulsbo
11/18/97 3.9 50 km S of Yakima
09/24/97 3.5 12 km N of Friday Harbor
07/11/97 3.6 5 km NE of Bremerton
06/27/97 3.9 5 km NE of Bremerton
06/23/97 4.9 5 km NE of Bremerton
02/10/97 3.5 Seattle

Epicenter Map

Map of events

Updated December 2002


Data Stations Outreach Operations Contact

University of Washington Dept. of Earth and Space Sciences, Box 351310 Seattle, WA, 98195-1310

This is file http://www.ess.washington.edu/SEIS/PNSN/SMO/smoevts.html