M5.7 earthquake 107 km NNE of Hihifo, Tonga

A magnitude 5.7 earthquake struck 107 km NNE of Hihifo, Tonga on Mon, Oct 24, 2022, 8:51 PM GMT+13 (07:51 UTC), 31 km (19 mi) below the surface.

A larger quake followed: M6.8 109 km NE of Hihifo, Tonga. This one was a foreshock.

Map

Where this earthquake was located, with the others nearby. Select one for its page.

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.	Scale	Computed by	Notes
5.7	Mww, W-phase moment	USGS National Earthquake Information Center	Preferred · Reviewed · ±0.098 · 10 stations
5.9	Mi	NOAA Pacific Tsunami Warning Center	Reviewed · 23 stations
5.7	Mwb, body-wave moment	USGS National Earthquake Information Center	Moment tensor · Reviewed
5.9	Mww, W-phase moment	USGS National Earthquake Information Center	First automatic solution · Preliminary

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

3 people reported to the USGS what they felt; the strongest reported shaking was IV, light shaking.

The USGS PAGER system estimates deaths and economic losses from the shaking and the population and buildings exposed to it.

How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.

Reviewed by a seismologist.

Distance and direction from each place to the epicenter, with its forecast.

Within 100 km, magnitude 2.7 and up: 20 in the 60 days after this one and 9 in the 30 days before it.

From the USGS Earthquake Hazards Program and its partner networks, event us6000iw1e (also filed as pt22297050). Read Fri, Oct 2, 2026, 6:47 AM UTC.