ADMN75 PAAQ 270840

OBSERVATORY MESSAGE
QUAKE OF APR 27

PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------

 * The following parameters are based on a rapid preliminary
   assessment of the earthquake and changes may occur.

 * Magnitude      Mwp 6.4 - 12 station average
 * Origin Time    0036 AKDT Apr 27 2024
                  0136  PDT Apr 27 2024
                  0836  UTC Apr 27 2024
 * Coordinates    27.8 North 139.4 East
 * Depth          299 miles
 * Location       in the Bonin Islands, Japan region


ADDITIONAL INFORMATION
----------------------
 * The location and magnitude may change as more data becomes 
   available.
 * The location and magnitude are based on preliminary information. 
 * Further information will be issued by the United States 
   Geological Survey (earthquake.usgs.gov) or the appropriate 
   regional seismic network.

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