Quakes

Earthquake magnitude 5.7 (mww) in 13.399N 144.140E, depth 439 km at 090920Z aug 23

Guam Region · USGS-US6000KYTU

issued: 2023-08-09 09:20Z
status: cancelled 2023-08-12 09:20Z
self-cancels: 2023-08-12 09:20Z
authority: USGS NEIC
sea: Philippine Sea
position: 13.399, 144.140
source: usgs · first seen 2026-09-03 15:13Z

Original warning text

GUAM REGION.
1. EARTHQUAKE MAGNITUDE 5.7 (MWW) IN 13.399N 144.140E, DEPTH 439 KM AT 090920Z AUG 23.
2. USGS EVENT US6000KYTU. https://earthquake.usgs.gov/earthquakes/eventpage/us6000kytu

This area · earthquake & tsunami bulletins

100 within 180 nm since 1997 · 3 in the last 12 months · 0 in force now

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Season · when earthquake & tsunami bulletins happen here

month of issue, all years in the archive

Nearby now · within 120 nm

Hazardous operations 2200Z to 1000Z daily 30 aug thru 03 sep in area bound by 13-45.00N 144-19.59E,…Exercises · 23.3 nm
Uscg remote communication facility guam 13-29.00N 144-50.00E broadcast and communication services unreliableNav aids · 40.8 nm
Uscg remote communication facility guam 13-29.00N 144-50.00E hf NAVTEX and sitor services off airNav aids · 40.8 nm
Hazardous operations 0100Z to 1300Z daily 01 thru 03 sep in areas within: a. three miles of 13-27.00N…Exercises · 43.7 nm
Hazardous operations 0100Z to 0600Z daily 31 aug and 01 sep and 022000Z to 030800Z sep in area bound by…Exercises · 45.9 nm
Hazardous operations 1400Z to 1359Z daily 01 thru 05 sep in areas bound by: a. 12-49.98N 145-00.00E,…Exercises · 66.8 nm
Due to tropical storm bavi: 1. the following port(s) are closed: a. rota island 14-08.35N 145-08.09EStorms · 74.9 nm
Hazardous operations 0100Z to 0800Z daily 01 and 02 sep in area bound by 13-10.00N 144-30.00E, 13-10.00N…Exercises · 98.2 nm

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