Quakes

84 km ene of kolonga, tonga

USGS-USP0008ATR

issued
1997-11-17 06:25Z
status
cancelled 1997-11-20 06:25Z
self-cancels
1997-11-20 06:25Z
authority
USGS NEIC
sea
South Pacific Ocean
position
-20.830, -174.320
source
usgs · first seen 2026-09-03 15:08Z

Original warning text

84 KM ENE OF KOLONGA, TONGA.
1. EARTHQUAKE MAGNITUDE 5.5 (MWC) IN 20.830S 174.320W, DEPTH 33 KM AT 170625Z NOV 97.
2. USGS EVENT USP0008ATR. https://earthquake.usgs.gov/earthquakes/eventpage/usp0008atr

This area · earthquake & tsunami bulletins

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

97
00
05
10
15
20
25
26

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

Timeline · 2 messages since 1997-11-17 · closed 1997-11-20

  1. 80 km ne of kolonga, tonga1997-11-17 → 1997-11-20
  2. 84 km ene of kolonga, tonga this message1997-11-17 → 1997-11-20

joined by proximity

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.