QuakeScout
Magnitude4.3

Reviewed by USGSIndonesia20y ago

M4.3 earthquake 34 km SSW of Singaparna, Indonesia

Friday, August 18, 2006, 04:22:24 UTC · 7.632°S, 107.973°E

A magnitude 4.3 earthquake struck 34 km SSW of Singaparna, Indonesia on Friday, August 18, 2006, 04:22:24 UTC, at a depth of 10.0 km (shallow).

Magnitude
4.3
Light · 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 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

256 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: 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 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 348 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:

  1. 7.7226 km SSW of Singaparna, IndonesiaJuly 17, 2006 · 194 km S of this epicenter
  2. 7.487 km SSW of Srandakan, IndonesiaJuly 23, 1943 · 233 km SE of this epicenter
  3. 6.992 km S of Pundong, IndonesiaSeptember 27, 1937 · 299 km SE of this epicenter
  4. 6.829 km SW of Labuan, IndonesiaOctober 25, 2000 · 285 km NW of this epicenter
  5. 6.5260 km SSW of Kroya, IndonesiaSeptember 7, 1974 · 246 km S of this epicenter
  6. 6.559 km SSW of Labuan, IndonesiaDecember 21, 1999 · 281 km W of this epicenter
  7. 6.519 km W of Ciranjang-hilir, IndonesiaOctober 9, 1985 · 136 km NW of this epicenter

History · NOAA

Deadliest earthquakes in this area

NOAA’s significant-earthquake database lists 32 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 7,873 recorded deaths. The most severe:

  1. 2006M6.3

    Java: Bantul, Yogyakarta

    26 May 2006 · 275 km away

    6,234 deaths$3.1 billion damage

  2. 2006M7.7

    Java

    17 Jul 2006 · 194 km away

    802 deaths$55 million damagetsunami

  3. 1924

    Java: Wonosobo

    2 Dec 1924 · 216 km away · intensity IX

    727 deathsSevere damage ($5–24M)

  4. 1924

    Java

    12 Nov 1924 · 205 km away

    60 deaths

  5. 1979M6.1

    Java

    2 Nov 1979 · 31 km away

    30 deaths$16 million damage

  6. 1875

    W Java: Kuningan

    25 Oct 1875 · 89 km away · intensity VIII

    7 deathsSevere damage ($5–24M)

NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.

Nearby trackers

Closest city pages