Reviewed by USGSSomalia97y ago
M6.0 earthquake 80 km N of Baki, Somalia
Monday, October 27, 1930, 23:28:33 UTC · 10.613°N, 43.460°E
A magnitude 6.0 earthquake struck 80 km N of Baki, Somalia on Monday, October 27, 1930, 23:28:33 UTC, at a depth of 15.0 km (shallow). It is the strongest earthquake within 300 km since an M6.0 on October 24, 1930.
- Magnitude
- 6.0
- Moderate · 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
13 kilotons of TNT
That is about the energy of the Hiroshima bomb. It released about 27 times the energy of a magnitude 5.0.
Tectonic setting
143 km
from the nearest mapped plate boundary, between the Somali and Arabian 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 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 7 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 6.0northwestern SomaliaJanuary 22, 1929 · 37 km SW of this epicenter
- 6.054 km NNW of Baki, SomaliaOctober 31, 1926 · 38 km SW of this epicenter
- 6.034 km SSE of Asaita, EthiopiaMay 18, 1929 · 220 km W of this epicenter
- 6.063 km WNW of Baki, SomaliaOctober 24, 1930 · 80 km SW of this epicenter
- 5.766 km SE of 'Ali Sabieh, DjiboutiOctober 25, 1930 · 37 km W of this epicenter
- 5.737 km SSW of Dikhil, DjiboutiOctober 30, 1926 · 139 km W of this epicenter
- 5.715 km SE of Deder, EthiopiaOctober 25, 1930 · 261 km SW of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 1 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700. The most severe:
- 1909
Djibouti; Yemen
19 Feb 1909 · 160 km away
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.