World Map › Major Earthquakes Since 1900 › 1984
Historic Earthquake
1984 Nagano Earthquake
13 September 1984 · Honshu, Central · Japan
On 13 September 1984 at 23:48 UTC, a magnitude 6.1 earthquake struck Japan (Honshu, Central), at a depth of 10 km. It occurred on the Amur Plate, 69 km from its boundary with the Okhotsk Plate (continental collision). It killed at least 29 people.
- Date
- 13 September 1984
- Time
- 23:48 UTC
- Magnitude
- 6.1
- Depth
- 10 km
- Maximum Intensity
- VI (Mercalli)
- Deaths
- 29
- Estimated Damage
- 43 million US dollars
- Plate
- Amur Plate
- Country
- Japan
- Nearest Volcano
- Ontakesan (12 km)
Nearby Major Earthquakes
Other major earthquakes recorded within 300 km.
- 20242024 Noto Earthquake · M 7.5549 deaths
- 20042004 Kii Peninsula Earthquake · M 7.4
- 19481948 Fukui Earthquake · M 7.35,131 deaths
- 19441944 Tōnankai Earthquake · M 8.11,223 deaths
- 19271927 North Tango Earthquake · M 7.33,022 deaths
- 19231923 Great Kantō Earthquake · M 7.7
- 19231923 Great Kantō Earthquake · M 7.9105,385 deaths
- 1906Near S Coast of Honshu · M 8.4
Sources: NOAA National Centers for Environmental Information, Global Significant Earthquake Database (doi:10.7289/V5TD9V7K) · Wikidata · Bird (2003), PB2002 · Natural Earth