Reviewed by USGSIndonesia16y ago
M4.3 earthquake 69 km ENE of Sinabang, Indonesia
Saturday, April 24, 2010, 11:08:30 UTC · 2.617°N, 96.989°E
A magnitude 4.3 earthquake struck 69 km ENE of Sinabang, Indonesia on Saturday, April 24, 2010, 11:08:30 UTC, at a depth of 35.0 km (shallow).
- Magnitude
- 4.3
- Light · mb
- Depth
- 35 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
43 tons of TNT
That is about 1/354 of the Hiroshima bomb. A magnitude 5.0 releases about 11 times more energy.
Tectonic setting
28 km
from the nearest mapped plate boundary, between the Sunda and Burma plates. Earthquakes cluster along boundaries like this one, where plates collide, pull apart or slide past each other.
Depth: shallow
35 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 618 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 9.12004 Sumatra - Andaman Islands EarthquakeDecember 26, 2004 · 135 km NW of this epicenter
- 8.678 km WSW of Singkil, IndonesiaMarch 28, 2005 · 61 km S of this epicenter
- 8.2The 1907 Sumatra Earthquake and TsunamiJanuary 4, 1907 · 162 km W of this epicenter
- 7.875 km E of Sinabang, IndonesiaApril 6, 2010 · 27 km S of this epicenter
- 7.5209 km WSW of Sinabang, IndonesiaNovember 21, 1969 · 279 km W of this epicenter
- 7.450 km NW of Sinabang, IndonesiaNovember 2, 2002 · 103 km W of this epicenter
- 7.456 km NW of Sinabang, IndonesiaFebruary 20, 2008 · 115 km W of this epicenter
- 7.1190 km SSW of Sibolga, IndonesiaNovember 17, 1984 · 293 km SE of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 23 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 231,433 recorded deaths. The most severe:
- 2004M9.1
Sumatra: Aceh: Off West Coast
26 Dec 2004 · 135 km away
227,899 deaths$10 billion damagetsunami
- 1907M8.2
Nw Sumatra: Gunungsitoli, Barus
4 Jan 1907 · 162 km away
2,188 deathsSevere damage ($5–24M)tsunami
- 2005M8.6
Sumatera: Sw
28 Mar 2005 · 61 km away
1,319 deaths$37 million damagetsunami
- 1936
N Sumatera: Tapanuli, Karo
9 Sep 1936 · 113 km away · intensity VIII
17 deathsModerate damage ($1–5M)
- 2002M7.3
Sumatera: Simeulue
2 Nov 2002 · 103 km away
3 deathsSevere damage ($5–24M)
- 2008M7.4
Sumatera: Aceh Province
20 Feb 2008 · 115 km away
3 deaths
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.