Reviewed by USGSIndonesia20y ago
M5.0 earthquake 225 km SSW of Sidareja, Indonesia
Tuesday, August 29, 2006, 20:59:17 UTC · 9.456°S, 108.282°E
A magnitude 5.0 earthquake struck 225 km SSW of Sidareja, Indonesia on Tuesday, August 29, 2006, 20:59:17 UTC, at a depth of 10.0 km (shallow). It is the strongest earthquake within 300 km since an M5.0 on August 12, 2006.
- Magnitude
- 5.0
- Moderate · mb
- Depth
- 10 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 earthquakeDashed circle: 75 km aftershock search area
In context
How big was it, and why here?
Energy released
477 tons of TNT
That is about 1/32 of the Hiroshima bomb. Each whole step in magnitude is about 32 times more energy.
Tectonic setting
76 km
from the nearest mapped plate boundary, between the Sunda and Australian plates. Earthquakes cluster along boundaries like this one, where plates collide, pull apart or slide past each other.
Depth: shallow
10 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 lists 6 M2.5+ earthquakes within 75 km in the following 30 days; the largest was M5.0 on August 30, 2006. Most nearby activity right after a large earthquake is aftershocks, which usually become less frequent over days and weeks.
- 4.1249 km SSW of Kroya, Indonesia20y ago · 62 km SE of this epicenter
- 4.4197 km SSW of Kroya, Indonesia20y ago · 53 km E of this epicenter
- 4.4275 km SSW of Sidareja, Indonesia20y ago · 50 km S of this epicenter
- 4.5271 km S of Kawalu, Indonesia20y ago · 55 km SW of this epicenter
- 5.0245 km SSW of Kawalu, Indonesia20y ago · 61 km W of this epicenter
- 5.0237 km SSW of Kawalu, Indonesia20y ago · 56 km W of this epicenter
Regional history
Past M5+ earthquakes within 300 km
USGS lists 292 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 7.7226 km SSW of Singaparna, IndonesiaJuly 17, 2006 · 97 km W of this epicenter
- 7.6233 km S of Pundong, IndonesiaSeptember 11, 1921 · 268 km E of this epicenter
- 7.487 km SSW of Srandakan, IndonesiaJuly 23, 1943 · 195 km NE of this epicenter
- 7.1138 km SSE of Pundong, IndonesiaSeptember 10, 1926 · 260 km E of this epicenter
- 6.9south of Java, IndonesiaJuly 24, 1979 · 198 km S of this epicenter
- 6.992 km S of Pundong, IndonesiaSeptember 27, 1937 · 247 km E of this epicenter
- 6.5260 km SSW of Kroya, IndonesiaSeptember 7, 1974 · 41 km S of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 22 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 8,081 recorded deaths. The most severe:
- 2006M6.3
Java: Bantul, Yogyakarta
26 May 2006 · 290 km away
6,234 deaths$3.1 billion damage
- 2006M7.7
Java
17 Jul 2006 · 97 km away
802 deaths$55 million damagetsunami
- 1924
Java: Wonosobo
2 Dec 1924 · 299 km away · intensity IX
727 deathsSevere damage ($5–24M)
- 1943M8.1
Java: Jogyakarta
23 Jul 1943 · 188 km away · intensity VIII
213 deathsSevere damage ($5–24M)
- 1924
Java
12 Nov 1924 · 292 km away
60 deaths
- 1979M6.1
Java
2 Nov 1979 · 200 km away
30 deaths$16 million damage
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.