- Seismo-Watch
Earthquake Alert Bulletin No: 98-198
- Preliminary data indicates a significant earthquake has occurred:
| Regional Location:
Preliminary Magnitude:
Moment Magnitude:
Greenwich Mean Date:
Greenwich Mean Time:
Latitude:
Longitude:
Focal Depth (km):
Analysis Quality: |
SOUTHERN CALIFORNIA
Ml 4.8 (SCSN)
Mw n/a ( -- )
8/08/16
13:34:40
34.12N
116.93W
8.0 km
A |
- Notations:
An earthquake registering a preliminary magnitude of Ml
4.8 (SCSN) occurred at 13:34:40 UTC (06:34 a.m. PDT), August
16, in Southern California. The focal point was estimated at 8.0 km beneath
the surface and we do not have a Moment magnitude for this event as of
yet. The quake was centered about 7 miles west of Mt. San Gorgonio or about
20 miles east of San Bernardino, near Mountain Home Village. The quake
triggered close to the Mill Creek segment of the San Andreas fault, but
it is unsure if the quake was centered along the fault or beneath the San
Bernardino Mountains. A small aftershock sequence has include a half dozen
events in the first hour. The quake was strongly felt in the Inland Empire
region and as far away as Los Angeles. Although there have been no reports
of damage or injury at this time, this quake was large enough to cause
items to topple from tables and shelves. This the strongest earthquake
in Southern California since Coso M5.2 and M5.0 earthquakes recorded in
March earlier this year.
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 © 1998 Advanced Geologic
Exploration
- Voice: 702-852-0992 / Fax: 702-852-3226
- Web Site: http://www.seismo-watch.com
- Re-transmission prohibited. All rights
reserved.
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