Fiji earthquakes

M5.5 earthquake Fiji region

A magnitude 5.5 earthquake struck in the Fiji region on Sun, Feb 11, 2018, 4:38 AM GMT-12 (16:38 UTC), 631 km (392 mi) below the surface.

A larger quake followed: M5.7 Fiji region. This one was a foreshock.

Map

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

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The earthquake

Magnitude: 5.5 (mww), moderate
Local time: Sun, Feb 11, 2018, 4:38 AM GMT-12
UTC: 2018-02-11 16:38:14 UTC
Depth: 631.2 km (392.2 mi), deep
Epicenter: 20.919° S, 179.140° W
Region: Fiji
Strongest shaking: I, not felt shaking
PAGER alert: Green
Tsunami flag: No
Status: Reviewed by a seismologist

Shaking

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

Strongest estimated: I, not felt shaking
Peak ground acceleration: 2.0% of gravity
Peak ground velocity: 0.0 cm/s
Map: Automatic

USGS ShakeMap: estimated shaking intensity around the epicenter — Estimated shaking intensity. Map: USGS ShakeMap.

Did you feel it?

No one has reported feeling this quake to the USGS.

Estimated impact

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

Alert level: Green: little or no damage or loss of life expected

Deaths: estimated chance of each range
Range	Chance
Under 1	65%
1 to 10	30%
10 to 100	4%
100 to 1,000	Under 1%
1,000 to 10,000	Under 1%
10,000 to 100,000	Under 1%
100,000 to 10,000,000	Under 1%

Economic losses: estimated chance of each range
Range, million USD	Chance
Under 1	65%
1 to 10	30%
10 to 100	4%
100 to 1,000	Under 1%
1,000 to 10,000	Under 1%
10,000 to 100,000	Under 1%
100,000 to 10,000,000	Under 1%

Fault motion and ground failure

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

Faulting: Strike-slip
Moment magnitude: 5.5 Mww
Nodal plane 1: Strike 71°, dip 58°, rake 170°
Nodal plane 2: Strike 166°, dip 81°, rake 33°

How well it is located

Reviewed by a seismologist.

Location uncertainty: About 12.0 km horizontally, 6.0 km in depth
Magnitude uncertainty: ±0.09
Depth from: From location
Station coverage gap: 90°
Stations used: 72

Nearby

Within 100 km, magnitude 2.5 and up: 15 in the 60 days after this one and 7 in the 30 days before it.

After

Before

Earthquakes today Fiji earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us2000d0k7 (also filed as iscgem611685471). Read Wed, Sep 30, 2026, 12:47 PM UTC.