Reviewed by USGS105y ago
M6.1 earthquake in Kuril Islands
Saturday, May 6, 1922, 12:19:52 UTC · 46.437°N, 153.591°E
A magnitude 6.1 earthquake struck in Kuril Islands on Saturday, May 6, 1922, 12:19:52 UTC, at a depth of 15.0 km (shallow). It is the strongest earthquake within 300 km since an M6.2 on May 5, 1922.
- Magnitude
- 6.1
- Strong · 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
19 kilotons of TNT
That is about the energy of the Hiroshima bomb. It released about 40 times the energy of a magnitude 5.0.
Tectonic setting
35 km
from the nearest mapped plate boundary, between the Okhotsk and Pacific plates. Earthquakes cluster along boundaries like this one, where plates collide, pull apart or slide past each other.
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 100 km
USGS has not published any M2.5+ earthquake within 100 km in the 30 days after this event.
Regional history
Past M5+ earthquakes within 300 km
USGS lists 31 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 8.11918 Kuril Islands EarthquakeSeptember 7, 1918 · 188 km SW of this epicenter
- 7.8266 km SSW of Severo-Kuril’sk, RussiaMay 1, 1915 · 242 km NE of this epicenter
- 7.8east of the Kuril IslandsNovember 8, 1918 · 218 km SW of this epicenter
- 7.0285 km S of Severo-Kuril’sk, RussiaAugust 1, 1913 · 263 km NE of this epicenter
- 6.6east of the Kuril IslandsApril 26, 1922 · 73 km SE of this epicenter
- 6.6Kuril IslandsMay 4, 1922 · 35 km NW of this epicenter
- 6.6240 km SSW of Severo-Kuril’sk, RussiaMay 3, 1915 · 272 km NE of this epicenter
- 6.5Kuril IslandsJanuary 19, 1913 · 176 km NW of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 9 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 35 recorded deaths. The most severe:
- 1918M8.3
Kuril Islands
7 Sep 1918 · 192 km away
23 deathsModerate damage ($1–5M)tsunami
- 1780M7.5
Kuril Islands
29 Jun 1780 · 224 km away
12 deathsLimited damage (under $1M)tsunami
- 1913M7.5
Kuril Islands
19 Jan 1913 · 132 km away
Limited damage (under $1M)
- 1922M7.5
Kuril Islands
24 Oct 1922 · 150 km away
Limited damage (under $1M)
- 1915M8.1
Kuril Islands
1 May 1915 · 124 km away
- 1918M7.8
Kuril Islands
8 Nov 1918 · 270 km away
tsunami
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.