Reviewed by USGSIndonesia18y ago
M4.4 earthquake 172 km NE of Laikit, Laikit II (Dimembe), Indonesia
Tuesday, January 22, 2008, 00:31:39 UTC · 2.521°N, 126.137°E
A magnitude 4.4 earthquake struck 172 km NE of Laikit, Laikit II (Dimembe), Indonesia on Tuesday, January 22, 2008, 00:31:39 UTC, at a depth of 80.2 km (intermediate).
- Magnitude
- 4.4
- Light · mb
- Depth
- 80 km
- Intermediate
- 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
60 tons of TNT
That is about 1/251 of the Hiroshima bomb. A magnitude 5.0 releases about 8 times more energy.
Tectonic setting
78 km
from the nearest mapped plate boundary, between the Birds Head and Sunda plates. Earthquakes cluster along boundaries like this one, where plates collide, pull apart or slide past each other.
Depth: intermediate
80 km
Intermediate-depth earthquakes usually break inside a plate that is sinking into the mantle. Shaking spreads over a wide area but is gentler at the epicenter than a shallow quake of the same size.
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 1,905 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 7.8161 km SE of Sarangani, PhilippinesApril 1, 1936 · 196 km N of this epicenter
- 7.7228 km SW of Sarangani, PhilippinesJune 11, 1972 · 257 km NW of this epicenter
- 7.790 km NE of Tobelo, IndonesiaSeptember 8, 1966 · 262 km E of this epicenter
- 7.7148 km SE of Tondano, IndonesiaMay 14, 1932 · 239 km S of this epicenter
- 7.7121 km E of Bitung, IndonesiaAugust 10, 1968 · 117 km S of this epicenter
- 7.6101 km SE of Sarangani, PhilippinesDecember 16, 1910 · 239 km N of this epicenter
- 7.6223 km ESE of Sarangani, PhilippinesJanuary 30, 1969 · 273 km NE of this epicenter
- 7.564 km NNW of Ternate, IndonesiaJune 25, 1907 · 175 km SE of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 28 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 2,978 recorded deaths. The most severe:
- 1856
Sangihe Pulau (Volcanic)
2 Mar 1856 · 146 km away
2,806 deathsSevere damage ($5–24M)tsunami
- 1845M7.0
N Sulawesi: Menado, Tikala, Tomohon
8 Feb 1845 · 184 km away · intensity IX
118 deathsModerate damage ($1–5M)tsunami
- 1855
Maluku: Ternate Island
14 Jul 1855 · 231 km away · intensity IX
34 deathsModerate damage ($1–5M)
- 1994M7.0
Kau
21 Jan 1994 · 244 km away
9 deathsModerate damage ($1–5M)tsunami
- 1932M7.7
Sulawesi: Kakas,Langowan,Poso,Tondano
14 May 1932 · 239 km away · intensity VII
7 deathsSevere damage ($5–24M)tsunami
- 2007M7.5
Molucca Islands: N
21 Jan 2007 · 163 km away
4 deathsLimited damage (under $1M)
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.