Special Event

Basic Information


Time of Occurrence (GMT): Thursday March 1, 2001 at 09:10:21.05 Z
Time of Occurrence (PST): Thursday March 1, 2001 at 01:10:21.05 AM

Depth (km) 52.04
Magnitude (Mc) 3.4

Location 47.2037N 122.7107W
    21.3 km   W of Tacoma, WA
    22.3 km  NE of Olympia, WA
    52.3 km SSW of Seattle, WA

  • MORE INFORMATION ON: MAGNITUDE 6.8 Wednesday February 28, 2001 10:54 AM PST -- 11.3 mi NE of Olympia, WA
  • MORE INFORMATION ON: Deep Quakes In Cascadia
    Name of data file: 01030109102p

    This is an automated web page produced after a significant earthquake to give essential information about the earthquake and previous earthquake activity in the region. This information will be updated as needed.

    If you would like, you may fill out a form describing how the earthquake affected you. This information will be used to produce an "intensity" map illustrating how shaking and damage from the earthquake varied from place to place.
    Yes, I want to fill out the EARTHQUAKE FORM


    Detailed Information and Graphics about the Earthquake

    Our data base of earthquake hypocenters contains information from the 19th century to the present. Included are:

    Earthquake Mechanism

    If sufficient P-wave first motion data are available, a fault plane determination for the earthquake will be available in the form of

    Moment Tensor Estimates of the Earthquake size may also be available. To see, check at Oregon State U.

    Preliminary Strong Motion Information

    Related Information: Most Up-to-Date Local, National, and Global Earthquake Summaries