QuakeScout
Magnitude4.4

Reviewed by USGSIndonesia20y ago

M4.4 earthquake 275 km SSW of Sidareja, Indonesia

Monday, September 18, 2006, 03:49:46 UTC · 9.884°S, 108.134°E

A magnitude 4.4 earthquake struck 275 km SSW of Sidareja, Indonesia on Monday, September 18, 2006, 03:49:46 UTC, at a depth of 10.0 km (shallow).

Magnitude
4.4
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

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

26 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 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 261 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 · 103 km NW of this epicenter
  2. 7.6233 km S of Pundong, IndonesiaSeptember 11, 1921 · 276 km E of this epicenter
  3. 7.487 km SSW of Srandakan, IndonesiaJuly 23, 1943 · 234 km NE of this epicenter
  4. 7.1138 km SSE of Pundong, IndonesiaSeptember 10, 1926 · 285 km E of this epicenter
  5. 6.9south of Java, IndonesiaJuly 24, 1979 · 148 km S of this epicenter
  6. 6.992 km S of Pundong, IndonesiaSeptember 27, 1937 · 280 km NE of this epicenter
  7. 6.5260 km SSW of Kroya, IndonesiaSeptember 7, 1974 · 26 km E of this epicenter
  8. 6.3136 km S of Kawalu, IndonesiaSeptember 14, 1944 · 142 km N of this epicenter

History · NOAA

Deadliest earthquakes in this area

NOAA’s significant-earthquake database lists 9 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 1,046 recorded deaths. The most severe:

  1. 2006M7.7

    Java

    17 Jul 2006 · 103 km away

    802 deaths$55 million damagetsunami

  2. 1943M8.1

    Java: Jogyakarta

    23 Jul 1943 · 209 km away · intensity VIII

    213 deathsSevere damage ($5–24M)

  3. 1979M6.1

    Java

    2 Nov 1979 · 248 km away

    30 deaths$16 million damage

  4. 1937M7.2

    Java: Jogyakarta: Klumpit,Prambanan

    27 Sep 1937 · 233 km away · intensity IX

    1 deathSevere damage ($5–24M)

  5. 1980M5.8

    Java: Tasikmalaja

    16 Apr 1980 · 213 km away

    Moderate damage ($1–5M)

  6. 1863

    Java: Banyumas

    31 Jul 1863 · 294 km away

    Moderate damage ($1–5M)

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

Nearby trackers

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