Vanuatu earthquakes

M6.6 earthquake 37 km SE of Sola, Vanuatu

A magnitude 6.6 earthquake struck 37 km SE of Sola, Vanuatu on Mon, Jul 6, 1987, 1:49 PM GMT+11 (02:49 UTC), 48 km (30 mi) below the surface.

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The earthquake

Magnitude
6.6 (Mw, moment), strong
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1987-07-06 02:49:42 UTC
Depth
47.5 km (29.5 mi), shallow
Epicenter
14.074° S, 167.828° E
Region
Vanuatu
Strongest shaking
VI, strong shaking
Tsunami flag
No
Status
Reviewed by a seismologist

Magnitude estimates

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.ScaleComputed byNotes
6.6Mw, momentUSGS National Earthquake Information CenterPreferred · Reviewed
6.59Mw, momentISC-GEM global catalogFinal · ±0.1
6.6Mwc, centroid momentGlobal CMT projectPreliminary
6.35Me, energyChoy, USGS energy magnitudeReviewed

Deaths and damage

From NOAA NCEI’s Significant Earthquake Database (record 6819), matched to this event by time and place.

NOAA’s record of this earthquake gives no deaths, injuries or damage.

NOAA’s full record of this earthquakeThe tsunami it caused

What happened

The USGS’s account of the effects of this earthquake.

Felt strongly on the Banks Islands. A small local tsunami was reported. RADIATED ENERGY No. of sta: 7 Focal mech. C Energy 8.4+2.1*10**13 Nm CENTROID, MOMENT TENSOR (HRV) Data Used: GDSN, IDA L.P.B.: 23S, 62C M.W.: 15S, 35C Centroid Location: Origin Time 02:49:49.1 0.2 Lat 13.94S 0.02 Lon 167.94E 0.01 Dep 15.0 FIX Half-duration 8.0 Moment Tensor; Scale 10**18 Nm Mrr=9.55 0.10 Mtt=-0.96 0.08 Mff=-8.60 0.09 Mrt=0.35 0.50 Mrf=1.22 0.51 Mtf=2.61 0.08 Principal Axes: (T) Val=9.66 Plg=85 Azm=304 (N) Val=-0.20 Plg=4 Azm=163 (P) Val=-9.46 Plg=3 Azm=73 Best Double Couple:Mo=9.6*10**18 NP1:Strike=159 Dip=42 Slip=84 NP2:Strike=347 Dip=48 Slip=95

From the USGS event page for usp00036ct. U.S. Geological Survey text and figures are in the public domain.

Shaking

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

Strongest estimated
VI, strong shaking
Peak ground acceleration
14.3% of gravity
Peak ground velocity
2.6 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.

Nearby

Within 100 km, magnitude 3.6 and up: 12 in the 60 days after this one and 2 in the 30 days before it.

After

Before

Earthquakes todayVanuatu earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp00036ct (also filed as choy19870706024942, gcmtc070687c, gcmt19870706024941, atlas19870706024943, iscgem461430). Read Thu, Oct 1, 2026, 11:10 AM UTC.