Quakes · tsunami

Earthquake magnitude 7.1 (mww) in 60.285S 024.874W, depth 6 km at 222133Z aug 21

South Sandwich Islands Region · USGS-US6000F9SQ

issued
2021-08-22 21:33Z
status
cancelled 2021-08-25 21:33Z
self-cancels
2021-08-25 21:33Z
authority
USGS NEIC
sea
Southern Ocean
position
-60.285, -24.874
source
usgs · first seen 2026-09-03 15:13Z

Original warning text

SOUTH SANDWICH ISLANDS REGION.
1. EARTHQUAKE MAGNITUDE 7.1 (MWW) IN 60.285S 024.874W, DEPTH 6 KM AT 222133Z AUG 21.
2. A TSUNAMI MESSAGE WAS ISSUED FOR THIS EVENT. FOLLOW THE TSUNAMI WARNING CENTRES.
3. USGS EVENT US6000F9SQ. https://earthquake.usgs.gov/earthquakes/eventpage/us6000f9sq

This area · earthquake & tsunami bulletins

173 within 180 nm since 1997 · 8 in the last 12 months · 0 in force now

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Timeline · 4 messages since 2021-08-12 · closed 2021-08-25

  1. Earthquake magnitude 5.6 (mb) in 60.434S 025.176W, depth 10 km at 121848Z aug 212021-08-12 → 2021-08-15
  2. Earthquake magnitude 5.5 (mww) in 60.248S 024.928W, depth 10 km at 162050Z aug 212021-08-16 → 2021-08-19
  3. Earthquake magnitude 6.6 (mww) in 60.140S 024.221W, depth 7 km at 220045Z aug 212021-08-22 → 2021-08-25
  4. Earthquake magnitude 7.1 (mww) in 60.285S 024.874W, depth 6 km at 222133Z aug 21 this message2021-08-22 → 2021-08-25

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