• Latest Earthquakes
• - USA
• - World
• - EQ Notification Service
• - Feeds & Data
• - Animations
• Recent Earthquakes
• Historic Earthquakes
• - "Top 10" Lists & Maps
• - Significant EQs
• - Earthquake Search
• - EQ Summary Posters
• - Scientific Data
• About EQ Maps
• Did You Feel It?
• Energy & Broadband Solutions
• Fast Moment Tensors
• Media Info
• PAGER
• Seismogram Displays
• ShakeMaps

Magnitude 6.5 SAMAR, PHILIPPINES

2003 November 18 17:14:22 UTC

Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver

SAMAR, PHILIPPINES

03/11/18 17:14:21 UTC
Epicenter 12.01N 125.39E

BROADBAND SOURCE PARAMETERS
 Energy Magnitude:
  Me                         6.3
 Radiated Energy:
  Es               6.8*10**13 Nm
  No. of sta:  4  Focal mech.  M
 Broadband Depth:        35.0 km
 COMMENT:  Depth from synthetics of broadband displacement seismograms.

Explanation of Parameters
Latest USGS Energy Solutions
Source Parameter Search

For more information, contact George Choy, choy@usgs.gov