Quakes
Earthquake magnitude 5.5 (mww) in 30.802N 142.065E, depth 8 km at 040557Z oct 23
Izu Islands, Japan Region · USGS-US6000LCQ8
- issued
- 2023-10-04 05:57Z
- status
- cancelled 2023-10-07 05:57Z
- self-cancels
- 2023-10-07 05:57Z
- authority
- USGS NEIC
- sea
- North Pacific Ocean
- position
- 30.802, 142.065
- source
- usgs · first seen 2026-09-03 15:13Z
Original warning text
IZU ISLANDS, JAPAN REGION. 1. EARTHQUAKE MAGNITUDE 5.5 (MWW) IN 30.802N 142.065E, DEPTH 8 KM AT 040557Z OCT 23. 2. USGS EVENT US6000LCQ8. https://earthquake.usgs.gov/earthquakes/eventpage/us6000lcq8
This area · earthquake & tsunami bulletins
101 within 180 nm since 1997 · 1 in the last 12 months · 0 in force now
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- Earthquake magnitude 5.7 (mww) in 30.662N 141.740E, depth 11 km at 010334Z jun 262026-06-01
- Earthquake magnitude 5.8 (mww) in 30.502N 141.852E, depth 7 km at 262102Z dec 242024-12-26
- Earthquake magnitude 5.6 (mww) in 31.507N 140.042E, depth 19 km at 232314Z sep 242024-09-23
- An earthquake with a preliminary magnitude of 5.0 occurred in the izu islands japan region in vicinity…2023-10-09
- Earthquake magnitude 5.5 (mww) in 30.106N 139.991E, depth 10 km at 060549Z oct 232023-10-06
- Earthquake magnitude 6.1 (mww) in 30.141N 139.968E, depth 10 km at 060131Z oct 232023-10-06
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month of issue, all years in the archive
Timeline · 4 messages since 2023-09-19 · closed 2023-10-07
- Earthquake magnitude 5.8 (mww) in 30.996N 141.990E, depth 8 km at 190622Z sep 232023-09-19 → 2023-09-22
- Earthquake magnitude 5.7 (mww) in 30.966N 141.801E, depth 13 km at 212122Z sep 232023-09-21 → 2023-09-24
- Earthquake magnitude 5.6 (mww) in 31.042N 141.862E, depth 10 km at 040455Z oct 232023-10-04 → 2023-10-07
- Earthquake magnitude 5.5 (mww) in 30.802N 142.065E, depth 8 km at 040557Z oct 23 this message2023-10-04 → 2023-10-07
joined by proximity
Nearby now · within 120 nm
- 180500Z issued at 190200Z sepVolcanic · 110.4 nm
- Discoloured water observed in vicinity of 31-26.4N 140-03.0E at 180545Z sepVolcanic · 110.5 nm
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Quakes
Undersea earthquakes of magnitude 5.5 and above (USGS) and the tsunami bulletins NAVAREA coordinators relay. All current earthquake & tsunami bulletins →
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