Webicorder Station Maps - Stations currently viewable via webicorder - Updated twice a day
Map of Currently Operating Stations - Updated weekly
Detailed Map of stations in Puget Sound - Updated weekly
Detailed Map of stations in Willamette Valley - Updated weekly
Maps of PNSN Strong-Motion Sensor distribution in western WA and OR - Clickable to provide additional information on strong-motion stations
List of Currently Operating Stations - Updated weekly
Complete List of all PNSN Stations - Updated weekly......Format description of PNSN Station lists
Quarterly Reports - with lists of dysfunctional stations
SEISMOMETER TYPES
The PNSN operates a heterogenious mix of seismometer types for
monitoring a variety of types of earthquake activity. The
operations of seismographs are funded by different agencies
and serve a variety of purposes.
- Short Period -
Identified in Webicorders with the suffix "EHZ"
-
sensitive velocity seismometers with a response
peaked around 1 Hz. Typically only a single vertical component. Primarily
used for determination of location and magnitude of regional earthquakes.
- Broadband -
Identified in Webicorders by suffixes: "BHZ" or "HHZ" (Vertical), "BHE" or "HHE" (East-West horizontal), or "BHN" or "HHN" (North-South horizontal
-
velocity seismometers with a wide frequency response. Typically
has a vertical component and two horizontal components. Primary purpose
is to record waveforms from regional and distant earthquakes for research
purposes.
- Strong Motion
Identified in Webicorders by suffixes:
"ENZ" (Vertical), "ENE"(East-West horizontal), or "ENN" (North-South horizontal)
-
accelerometers with three components. Designed to
record on-scale waveforms from moderate and large regional earthquakes.
"Eworm" DATA COLLECTION NODES
The PNSN operates several field computers that collect and
digitize data for telemetry via internet. These are shown in station maps
as blue "eworm" circles. These nodes operate the same software used in
the PNSN Seismology Lab, which is also shown as a blue circle.
DATA EXCHANGE WITH OTHER NETWORKS
The USGS EARTHWORM system allows seismic networks to exchange real-time trace data on an ongoing basis. The PNSN receives data from other networks, including:
- The University of Oregon (a PNSN Partner)
- The Pacific Geoscience Center (Canadian Geological Survey)
- The Montana Bureau of Mines
- The Northern California Network Seismic Network (UC Berkeley and USGS; Menlo Park, CA)
- The US National Network (USGS; Golden, CO)
