Reviewed by USGSRussia32y ago
M4.9 earthquake 64 km NE of Otrada, Russia
Thursday, February 9, 1995, 10:42:40 UTC · 44.445°N, 146.486°E
A magnitude 4.9 earthquake struck 64 km NE of Otrada, Russia on Thursday, February 9, 1995, 10:42:40 UTC, at a depth of 33.0 km (shallow). It is the strongest earthquake within 300 km since an M4.9 on February 5, 1995.
- Magnitude
- 4.9
- Light · mb
- Depth
- 33 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 earthquakeDashed circle: 50 km aftershock search area
In context
How big was it, and why here?
Energy released
338 tons of TNT
That is about 1/45 of the Hiroshima bomb. A magnitude 5.0 releases about 1 times more energy.
Tectonic setting
197 km
from the nearest mapped plate boundary, between the Okhotsk and Pacific plates. Earthquakes this far from a boundary happen on faults inside a plate, often less frequently but sometimes strongly.
Depth: shallow
33 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 50 km
USGS lists 3 M2.5+ earthquakes within 50 km in the following 30 days; the largest was M4.9 on February 14, 1995. Most nearby activity right after a large earthquake is aftershocks, which usually become less frequent over days and weeks.
Regional history
Past M5+ earthquakes within 300 km
USGS lists 1,340 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 8.51963 Kuril Islands EarthquakeOctober 13, 1963 · 242 km E of this epicenter
- 8.31958 Kuril Islands EarthquakeNovember 6, 1958 · 159 km E of this epicenter
- 8.348 km E of Shikotan, RussiaOctober 4, 1994 · 100 km SE of this epicenter
- 8.21969 Hokkaido Toho-oki EarthquakeAugust 11, 1969 · 151 km SE of this epicenter
- 7.7100 km SSE of Korsakov, RussiaFebruary 28, 1950 · 284 km NW of this epicenter
- 7.719 km ESE of Nemuro, JapanJune 17, 1973 · 146 km SW of this epicenter
- 7.6134 km SE of Kuril’sk, RussiaMarch 24, 1978 · 190 km E of this epicenter
- 7.652 km NE of Otofuke, JapanJanuary 15, 1993 · 258 km SW of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 49 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 87 recorded deaths. The most severe:
- 1843M8.4
Hokkaido: Yezo, Kushiro, Nemuro
25 Apr 1843 · 275 km away
45 deathsModerate damage ($1–5M)tsunami
- 1973M7.7
Hokkaido Island
17 Jun 1973 · 149 km away · intensity VIII
27 deaths$5 million damagetsunami
- 1994M8.3
Kuril Islands; Japan: Hokkaido
4 Oct 1994 · 100 km away · intensity IX
11 deathsSevere damage ($5–24M)tsunami
- 1993M7.6
Hokkadio, Kushiro, Hachinohe, Honshu
15 Jan 1993 · 258 km away · intensity VI
2 deaths$358 million damage
- 1894M7.9
Off Coast Of Honshu
22 Mar 1894 · 220 km away · intensity IX
1 deathModerate damage ($1–5M)tsunami
- 1938M6.1
E. Hokkaido Island, Japan
28 May 1938 · 198 km away
1 deathLimited damage (under $1M)tsunami
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.