Japan earthquakes

M5.2 earthquake 68 km WNW of Naze, Japan

A magnitude 5.2 earthquake struck 68 km WNW of Naze, Japan on Tue, Nov 19, 1985, 11:03 PM JST (14:03 UTC), 135 km (84 mi) below the surface.

Naze forecastMore in Japan

Map

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

Open the live map with earthquakes

The earthquake

Magnitude
5.2 (Mw, moment), moderate
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1985-11-19 14:03:34 UTC
Depth
134.7 km (83.7 mi), intermediate-depth
Epicenter
28.666° N, 128.875° E
Region
Japan
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
5.2Mw, momentUSGS National Earthquake Information CenterPreferred · Reviewed
5.2Mw, momentISC-GEM global catalogFinal · ±0.1
5.2Mwc, centroid momentGlobal CMT projectPreliminary

What happened

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

Felt (III JMA) at Naze. Also felt at Nago and Naha. CENTROID, MOMENT TENSOR (HRV) Data Used: GDSN L.P.B.: 10S, 20C Centroid Location: Origin Time 14:03:37.4 0.9 Lat 28.63N 0.11 Lon 128.81E 0.14 Dep 127.0 6.1 Half-duration 1.5 Moment Tensor; Scale 10**23 D-CM Mrr=5.29 0.76 Mtt=-2.75 1.12 Mff=-2.53 1.44 Mrt=5.23 0.62 Mrf=2.19 0.62 Mtf=-3.46 1.01 Principal Axes: (T) Val=7.89 Plg=64 Azm=354 (N) Val=0.36 Plg=12 Azm=236 (P) Val=-8.24 Plg=22 Azm=141 Best Double Couple:Mo=8.1*10**23 NP1:Strike=209 Dip=26 Slip=60 NP2:Strike=61 Dip=68 Slip=103

From the USGS event page for usp0002mya. U.S. Geological Survey text and figures are in the public domain.

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Depth from
CONSTRAINED_BY_DEPTH_PHASES

Nearest places

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

Nearby

Within 100 km, magnitude 2.2 and up: 1 in the 60 days after this one and 0 in the 30 days before it.

After

Earthquakes todayJapan earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0002mya (also filed as gcmtb111985b, gcmt19851119140335, iscgem511226). Read Thu, Oct 1, 2026, 5:40 AM UTC.