Quakes
Earthquake magnitude 5.7 (mww) in 1.242S 024.148W, depth 10 km at 011350Z sep 21
Central Mid-atlantic Ridge · USGS-US7000F6Q8
- issued
- 2021-09-01 13:50Z
- status
- cancelled 2021-09-04 13:50Z
- self-cancels
- 2021-09-04 13:50Z
- authority
- USGS NEIC
- sea
- South Atlantic Ocean
- position
- -1.242, -24.148
- source
- usgs · first seen 2026-09-03 15:13Z
Original warning text
CENTRAL MID-ATLANTIC RIDGE. 1. EARTHQUAKE MAGNITUDE 5.7 (MWW) IN 1.242S 024.148W, DEPTH 10 KM AT 011350Z SEP 21. 2. USGS EVENT US7000F6Q8. https://earthquake.usgs.gov/earthquakes/eventpage/us7000f6q8
This area · earthquake & tsunami bulletins
26 within 180 nm since 2000 · 0 in the last 12 months · 0 in force now
00
05
10
15
20
25
- Earthquake magnitude 5.7 (mww) in 0.430N 025.145W, depth 10 km at 310904Z jan 252025-01-31
- Earthquake magnitude 5.5 (mww) in 0.769N 026.143W, depth 10 km at 212053Z jun 242024-06-21
- Earthquake magnitude 5.5 (mww) in 1.217S 024.130W, depth 10 km at 061204Z nov 232023-11-06
- Earthquake magnitude 5.9 (mww) in 0.735N 026.093W, depth 10 km at 110920Z sep 232023-09-11
- Earthquake magnitude 6.2 (mww) in 1.364S 023.904W, depth 10 km at 091638Z oct 222022-10-09
- Earthquake magnitude 6.9 (mww) in 0.934S 021.715W, depth 10 km at 040942Z sep 222022-09-04
Season · when earthquake & tsunami bulletins happen here
J
F
M
A
M
J
J
A
S
O
N
D
month of issue, all years in the archive
Nearby now · within 120 nm
Nothing else in force within 120 nm.
Worldwide now
5 earthquake & tsunami bulletins in force · see all
Quakes
Undersea earthquakes of magnitude 5.5 and above (USGS) and the tsunami bulletins NAVAREA coordinators relay. All current earthquake & tsunami bulletins →
Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.