Alert Bulletin Archive

 Subscribe?

Place Your Banner Here! Info?

Weekly Earthquake Reports
 
Seismo-Watch
Earthquake Alert Bulletin No: 97-183

Preliminary data indicates a significant earthquake has occurred:

Regional Location:

Preliminary Magnitude:

Moment Magnitude (Mw):

Greenwich Mean Date:
Greenwich Mean Time:
Latitude:
Longitude:
Focal Depth (km):
Analysis Quality (A-D):

OFF COAST OF OREGON

5.0 Ms

(n/a)

97/07/11
02:03:49
44.25N
129.47W
10.0 km (Fixed)
A
Notations:
An other earthquake has occurred along the Blanco Fracture Zone off the coast of Oregon. Last night's quakes registered a preliminary magnitude of Ms 5.0 occurred at 02:03 UTC, July 11 (7:03 p.m., July 10, PDT). The quake was centered about 170 miles west of Coos Bay along the central portion of the Blanco Fracture Zone in nearly the same location as a M4.6 two days ago. A M4.7 triggered to the southeast four days earlier.
 
Subtract 7 hours to obtain PDT or 4 hours for EDT
Location Quality: A (good), B (fair), C (poor), D (bad)
Magnitude: Ml (local or Richter magnitude), Lg (mblg), Md (duration), Mb (body wave), Ms (surface wave), Mw (moment)

Sources Include:
U.S. Geological Survey, National Earthquake Information Center, Golden, CO (NEIC)
Harvard Geophysical Observatory, Harvard University, Cambridge, MA (HRV)
International Data Center, Center for Monitoring Research, Arlington, VA (IDC)
California Institute of Technology, Pasadena, California (Caltech)
various wire reports and/or personal communications

All data are preliminary and subject to change.
Copyright © 1996 Advanced Geologic Exploration
Voice: 702-852-0992 / Fax: 702-852-3226
Web Site: https://seismo-watch.com
Re-transmission prohibited. All rights reserved.