Quakes
Earthquake magnitude 5.5 (mb) in 55.989S 027.809W, depth 33 km at 140401Z sep 99
South Sandwich Islands Region · USGS-USP0009EE0
- issued
- 1999-09-14 04:01Z
- status
- cancelled 1999-09-17 04:01Z
- self-cancels
- 1999-09-17 04:01Z
- authority
- USGS NEIC
- sea
- South Atlantic Ocean
- position
- -55.989, -27.809
- source
- usgs · first seen 2026-09-03 15:08Z
Original warning text
SOUTH SANDWICH ISLANDS REGION. 1. EARTHQUAKE MAGNITUDE 5.5 (MB) IN 55.989S 027.809W, DEPTH 33 KM AT 140401Z SEP 99. 2. USGS EVENT USP0009EE0. https://earthquake.usgs.gov/earthquakes/eventpage/usp0009ee0
This area · earthquake & tsunami bulletins
222 within 180 nm since 1997 · 9 in the last 12 months · 1 in force now
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- Earthquake magnitude 6.2 (mww) in 56.206S 027.909W, depth 126 km at 022346Z sep 262026-09-02
- Earthquake magnitude 6.4 (mww) in 55.535S 028.911W, depth 26 km at 111026Z jul 262026-07-11
- Earthquake magnitude 5.7 (mww) in 56.112S 027.877W, depth 101 km at 202300Z may 262026-05-20
- Earthquake magnitude 5.7 (mww) in 57.911S 025.352W, depth 27 km at 161452Z feb 262026-02-16
- Earthquake magnitude 6.0 (mww) in 57.772S 025.599W, depth 64 km at 290730Z jan 262026-01-29
- Earthquake magnitude 5.6 (mww) in 57.963S 025.221W, depth 23 km at 052203Z nov 252025-11-05
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