Every countryJapan

Japan earthquakes in 1981

262 earthquakes of magnitude 4.5 or more were located in Japan in 1981. The largest: M6.9 101 km ESE of ?funato, Japan, Jan 19, 1981.

From the USGS catalog. Times are local to each quake.

19801982

Map

Where every quake of 1981 was located in Japan. Select one for its page.

Open the live map with earthquakes

Every quake of 1981

Magnitude 4.5 and up, newest first.

The largest

The 25 largest of 1981 in Japan.

Month by month

Counted by UTC date, which is how the catalog files them.

MonthQuakesLargestWhere
January 1981416.9101 km ESE of ?funato, Japan
February 1981175.99 km SW of Naze, Japan
March 1981375.4Izu Islands, Japan region
April 1981195.7108 km ESE of Namie, Japan
May 1981206.0118 km WSW of Iwanai, Japan
June 1981155.2168 km SSE of Tateyama, Japan
July 1981245.458 km WSW of Kamiiso, Japan
August 1981225.577 km S of Koshima, Japan
September 1981276.1140 km ESE of ?funato, Japan
October 1981126.071 km NNE of Miyako, Japan
November 1981175.960 km SE of Nemuro, Japan
December 1981116.3111 km SSE of Hirara, Japan

What this means

The catalog is only as complete as the instruments of the time. Worldwide coverage of magnitude 5 and up dates from the 1960s, and of 4.5 from the 1990s; earlier years hold the large quakes and the ones near a station, so a low count in an early year means fewer instruments, not a quiet earth.

By year

Every year the USGS catalog covers.

Nearby

Japan nowWorldwide in 1981

Sources

Earthquakes, magnitudes, depths, shaking estimates and felt reports from the U.S. Geological Survey Earthquake Hazards Program, read from its live feeds and its catalog back to 1900. Tsunami messages from NOAA’s tsunami warning centers.