Reviewed by USGSRussia123y ago
M6.7 earthquake 97 km SE of Mil’kovo, Russia
Sunday, July 24, 1904, 10:44:48 UTC · 54.031°N, 159.607°E
A magnitude 6.7 earthquake struck 97 km SE of Mil’kovo, Russia on Sunday, July 24, 1904, 10:44:48 UTC, at a depth of 15.0 km (shallow). It is the strongest earthquake within 300 km since an M7.2 on June 27, 1904.
- Magnitude
- 6.7
- Strong · ms
- 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
169 kilotons of TNT
That is about 11 times the Hiroshima bomb. It released about 355 times the energy of a magnitude 5.0.
Tectonic setting
200 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
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 3 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
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. The most severe:
- 1841M8.4
Off Kamchatka
17 May 1841 · 250 km away · intensity XI
Moderate damage ($1–5M)tsunami
- 1904M8.3
Off Kamchatka
25 Jun 1904 · 229 km away · intensity X
Limited damage (under $1M)tsunami
- 1904M8.1
Off Kamchatka
25 Jun 1904 · 229 km away · intensity X
Limited damage (under $1M)tsunami
- 1827
Kamchatka
9 Aug 1827 · 136 km away
Limited damage (under $1M)tsunami
- 1792M8.4
Near Kamchatka
22 Aug 1792 · 156 km away · intensity XI
tsunami
- 1899M7.9
Kamchatka Peninsula
23 Nov 1899 · 121 km away
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.