Reviewed by USGSIndonesia19y ago
M7.5 earthquake 35 km NNE of Rengasdengklok, Indonesia
Wednesday, August 8, 2007, 17:05:04 UTC · 5.859°S, 107.419°E
A magnitude 7.5 earthquake struck 35 km NNE of Rengasdengklok, Indonesia on Wednesday, August 8, 2007, 17:05:04 UTC, at a depth of 280.0 km (intermediate). No earthquake of this size or larger appears within 300 km in the USGS catalog since 1900.
- Magnitude
- 7.5
- Major · mwc
- Depth
- 280 km
- Intermediate
- Felt reports
- 0
- Did You Feel It?
- Est. shaking
- V
- Moderate (ShakeMap)
- PAGER alert
- None
- Not issued
- Tsunami
- No flag
- USGS feed
Outlined circle: this earthquakeDashed circle: 200 km aftershock search areaColoured lines: estimated shaking intensity (USGS ShakeMap)
In context
How big was it, and why here?
Energy released
2.7 megatons of TNT
That is about 178 times the Hiroshima bomb. It released about 5,623 times the energy of a magnitude 5.0.
Tectonic setting
395 km
from the nearest mapped plate boundary, between the Sunda and Australian plates. Earthquakes this far from a boundary happen on faults inside a plate, often less frequently but sometimes strongly.
Depth: intermediate
280 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 200 km
USGS lists 3 M2.5+ earthquakes within 200 km in the following 30 days; the largest was M4.1 on August 26, 2007. Most nearby activity right after a large earthquake is aftershocks, which usually become less frequent over days and weeks.
Regional history
Past M5+ earthquakes within 300 km
USGS lists 281 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 7.0164 km N of Pamanukan, IndonesiaDecember 15, 1963 · 135 km NE of this epicenter
- 7.030 km WNW of Labuan, IndonesiaApril 1, 1943 · 211 km W of this epicenter
- 6.9183 km N of Rengasdengklok, IndonesiaApril 16, 1957 · 154 km N of this epicenter
- 6.850 km WSW of Labuan, IndonesiaJuly 3, 1954 · 234 km W of this epicenter
- 6.829 km SW of Labuan, IndonesiaOctober 25, 2000 · 212 km W of this epicenter
- 6.679 km WSW of Labuan, IndonesiaAugust 13, 1913 · 263 km W of this epicenter
- 6.559 km SSW of Labuan, IndonesiaDecember 21, 1999 · 233 km SW of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 31 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 45 recorded deaths. The most severe:
- 1979M6.1
Java
2 Nov 1979 · 220 km away
30 deaths$16 million damage
- 1875
W Java: Kuningan
25 Oct 1875 · 151 km away · intensity VIII
7 deathsSevere damage ($5–24M)
- 1999M6.5
Pandeglang, W Jawa, Se Sumatera
21 Dec 1999 · 233 km away
5 deaths$4 million damage
- 1971M5.2
Java: Buaran,Bantar Kawsun,Jipang
16 Jun 1971 · 238 km away
1 deathSevere damage ($5–24M)
- 1975M5.6
Java
9 Feb 1975 · 123 km away · intensity VIII
1 deathModerate damage ($1–5M)
- 2005M4.8
Java: Garut
2 Feb 2005 · 138 km away
1 deathModerate damage ($1–5M)
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.