Reviewed by USGSRussia33y ago
M4.5 earthquake 118 km NNW of Ozernovskiy, Russia
Friday, June 25, 1993, 16:44:33 UTC · 52.539°N, 156.162°E
A magnitude 4.5 earthquake struck 118 km NNW of Ozernovskiy, Russia on Friday, June 25, 1993, 16:44:33 UTC, at a depth of 33.0 km (shallow). It is the strongest earthquake within 300 km since an M4.7 on June 21, 1993.
- Magnitude
- 4.5
- 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 earthquake
In context
How big was it, and why here?
Energy released
85 tons of TNT
That is about 1/178 of the Hiroshima bomb. A magnitude 5.0 releases about 6 times more energy.
Tectonic setting
313 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 has not published any M2.5+ earthquake within 50 km in the 30 days after this event.
Regional history
Past M5+ earthquakes within 300 km
USGS lists 456 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 9.089 km ESE of Petropavlovsk-Kamchatsky, RussiaNovember 4, 1952 · 245 km E of this epicenter
- 7.976 km ENE of Petropavlovsk-Kamchatsky, RussiaMay 4, 1959 · 252 km E of this epicenter
- 7.7115 km ESE of Petropavlovsk-Kamchatsky, RussiaJune 25, 1904 · 279 km E of this epicenter
- 7.597 km ESE of Ozernovskiy, RussiaJune 8, 1993 · 186 km SE of this epicenter
- 7.495 km NNE of Ozernovskiy, RussiaMay 4, 1911 · 82 km SE of this epicenter
- 7.351 km SE of Petropavlovsk-Kamchatsky, RussiaNovember 24, 1971 · 208 km E of this epicenter
- 7.297 km NNE of Ozernovskiy, RussiaAugust 17, 1907 · 47 km SE of this epicenter
- 7.238 km ESE of Severo-Kuril’sk, RussiaFebruary 28, 1973 · 230 km S of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 19 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 10,101 recorded deaths. The most severe:
- 1952M9.0
Kamchatka Peninsula
4 Nov 1952 · 264 km away · intensity VII
10,000 deaths$1 million damagetsunami
- 1737
Kamchatka
16 Oct 1737 · 204 km away
100 deathstsunami
- 1959M8.2
Near East Coast Of Kamchatka
4 May 1959 · 226 km away · intensity X
1 deathModerate damage ($1–5M)tsunami
- 1841M8.4
Off Kamchatka
17 May 1841 · 139 km away · intensity XI
Moderate damage ($1–5M)tsunami
- 1973M7.2
Kuril Islands, Hiroo, Urakawa
28 Feb 1973 · 229 km away · intensity VIII
Moderate damage ($1–5M)tsunami
- 1904M8.3
Off Kamchatka
25 Jun 1904 · 202 km away · intensity X
Limited damage (under $1M)tsunami
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.