Reviewed by USGSJapan100y ago
M6.0 earthquake 17 km ESE of Asahikawa, Japan
Monday, July 11, 1927, 08:08:34 UTC · 43.703°N, 142.556°E
A magnitude 6.0 earthquake struck 17 km ESE of Asahikawa, Japan on Monday, July 11, 1927, 08:08:34 UTC, at a depth of 15.0 km (shallow). It is the strongest earthquake within 300 km since an M6.5 on September 4, 1926.
- Magnitude
- 6.0
- Moderate · mw
- Depth
- 15 km
- Shallow
- Felt reports
- 0
- Did You Feel It?
- Est. shaking
- —
- No ShakeMap
- PAGER alert
- None
- Not issued
- Tsunami
- No flag
- USGS feed
Outlined circle: this earthquake
In context
How big was it, and why here?
Energy released
14 kilotons of TNT
That is about the energy of the Hiroshima bomb. It released about 30 times the energy of a magnitude 5.0.
Tectonic setting
308 km
from the nearest mapped plate boundary, between the Okhotsk and Amur plates. Earthquakes this far from a boundary happen on faults inside a plate, often less frequently but sometimes strongly.
Depth: shallow
15 km
Shallow earthquakes (under 70 km) produce the strongest surface shaking for their size, so they are the ones most likely to cause damage near the epicenter.
Did You Feel It?
Where it was felt
No “Did You Feel It?” reports have been published for this event yet. If you felt it, you can add your report on the USGS website.
I felt it — report to USGS ↗USGS PAGER estimate
Who was exposed to shaking
USGS publishes PAGER impact estimates for significant earthquakes, usually within an hour. No PAGER estimate is available for this event.
After the main event
Aftershocks within 75 km
USGS has not published any M2.5+ earthquake within 75 km in the 30 days after this event.
Regional history
Past M5+ earthquakes within 300 km
USGS lists 30 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 7.322 km ESE of Makubetsu, JapanSeptember 1, 1905 · 182 km N of this epicenter
- 7.1123 km SE of Honchō, JapanJuly 29, 1917 · 294 km S of this epicenter
- 7.1Off the coast of Hokkaido, JapanDecember 25, 1900 · 289 km E of this epicenter
- 7.079 km S of Korsakov, RussiaSeptember 6, 1911 · 248 km N of this epicenter
- 6.949 km E of Nemuro, JapanOctober 13, 1911 · 294 km E of this epicenter
- 6.830 km ESE of Tomakomai, JapanFebruary 20, 1913 · 140 km S of this epicenter
- 6.755 km SW of Shikotan, RussiaDecember 23, 1907 · 300 km E of this epicenter
- 6.745 km E of Mutsu, JapanDecember 8, 1922 · 283 km S of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 10 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700. The most severe:
- 1904M7.6
Hokkaido
18 Mar 1904 · 295 km away · intensity X
Limited damage (under $1M)
- 1839M7.3
Se. Hokkaido Island, Japan
1 May 1839 · 239 km away
Limited damage (under $1M)tsunami
- 1792M6.9
W. Hokkaido Island
13 Jun 1792 · 159 km away
Limited damage (under $1M)tsunami
- 1834M6.4
W. Hokkaido Island, Japan
9 Feb 1834 · 103 km away
Limited damage (under $1M)tsunami
- 1900M7.9
Kuril Islands
25 Dec 1900 · 289 km away · intensity IX
- 1896M7.6
Kuril Islands
18 Nov 1896 · 278 km away · intensity IX
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.