WEIO22 WIIX 200803
TSP-InaTEWS-20260420-0803-001
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TSUNAMI BULLETIN NOTIFICATION MESSAGE NUMBER 1
IOTWMS TSUNAMI SERVICE PROVIDER INDONESIA (InaTEWS-BMKG)
issued at 0803 UTC, Apr 20, 2026
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TO:   INDIAN OCEAN NATIONAL TSUNAMI WARNING CENTRES (NTWC)
FROM: IOTWMS-TSP INDONESIA

NOTIFICATION:
IOTWMS-TSP INDONESIA  HAS JUST ISSUED TSUNAMI BULLETIN NUMBER 1 FOR
THE INDIAN OCEAN, BASED ON THE FOLLOWING EARTHQUAKE EVENT:

   Magnitude  : 7.4 Mwp
   Depth      : 10km
   Date       : 20 Apr 2026
   Origin Time: 07:52:57 UTC
   Latitude   : 40.02N
   Longitude  : 142.66E
   Location   : Near East Coast of Honshu, Japan

TO VIEW THE BULLETIN GO TO THE IOTWMS-TSP INDONESIA WEBSITE AT:

http://rtsp.bmkg.go.id

NOTE: THIS IS A RESTRICTED-ACCESS WEBSITE CONTAINING TECHNICAL DATA
FOR INDIAN OCEAN NATIONAL TSUNAMI WARNING CENTRES ONLY. IT IS NOT
FOR GENERAL PUBLIC ACCESS.  

GENERAL PUBLIC INFORMATION FOR THIS EVENT IS AVAILABLE FROM:

INDONESIA TSUNAMI EARLY WARNING SYSTEM (InaTEWS)
THE AGENCY FOR METEOROLOGY CLIMATOLOGY AND GEOPHYSICS (BMKG)
Address: Jl. Angkasa I no.2 Kemayoran, Jakarta, Indonesia, 10720
Tel.: +62 (21) 65867045
Fax:  +62 (21) 6546316
P.O. Box 3540 Jakarta
Website: http://rtsp.bmkg.go.id/publicbull.php
Email  : inartsp@bmkg.go.id
         monitrtwp@bmkg.go.id

END OF NOTIFICATION MESSAGE
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