Reviewed by USGSRussia33y ago
M5.4 earthquake 187 km E of Ozernovskiy, Russia
Thursday, July 8, 1993, 10:46:25 UTC · 51.218°N, 159.151°E
A magnitude 5.4 earthquake struck 187 km E of Ozernovskiy, Russia on Thursday, July 8, 1993, 10:46:25 UTC, at a depth of 35.5 km (shallow). It is the strongest earthquake within 300 km since an M6.3 on June 12, 1993.
- Magnitude
- 5.4
- Moderate · mb
- Depth
- 36 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
2 kilotons of TNT
That is about 1/8 of the Hiroshima bomb. It released about 4 times the energy of a magnitude 5.0.
Tectonic setting
64 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
36 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 598 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 · 162 km N of this epicenter
- 7.976 km ENE of Petropavlovsk-Kamchatsky, RussiaMay 4, 1959 · 230 km N of this epicenter
- 7.7115 km ESE of Petropavlovsk-Kamchatsky, RussiaJune 25, 1904 · 188 km NE of this epicenter
- 7.5274 km SE of Petropavlovsk-Kamchatsky, RussiaJune 25, 1904 · 174 km E of this epicenter
- 7.597 km ESE of Ozernovskiy, RussiaJune 8, 1993 · 92 km W of this epicenter
- 7.5253 km SE of Vilyuchinsk, RussiaJune 30, 1936 · 116 km E of this epicenter
- 7.495 km NNE of Ozernovskiy, RussiaMay 4, 1911 · 172 km NW of this epicenter
- 7.4156 km SE of Severo-Kuril’sk, RussiaOctober 31, 1916 · 178 km SW 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 · 182 km away · intensity VII
10,000 deaths$1 million damagetsunami
- 1737
Kamchatka
16 Oct 1737 · 81 km away
100 deathstsunami
- 1959M8.2
Near East Coast Of Kamchatka
4 May 1959 · 145 km away · intensity X
1 deathModerate damage ($1–5M)tsunami
- 1841M8.4
Off Kamchatka
17 May 1841 · 118 km away · intensity XI
Moderate damage ($1–5M)tsunami
- 1973M7.2
Kuril Islands, Hiroo, Urakawa
28 Feb 1973 · 196 km away · intensity VIII
Moderate damage ($1–5M)tsunami
- 1904M8.3
Off Kamchatka
25 Jun 1904 · 88 km away · intensity X
Limited damage (under $1M)tsunami
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.