QuakeScout
Magnitude3.8

Reviewed by USGSIndonesia19y ago

M3.8 earthquake 76 km W of Tobelo, Indonesia

Sunday, April 29, 2007, 00:40:53 UTC · 1.600°N, 127.335°E

A magnitude 3.8 earthquake struck 76 km W of Tobelo, Indonesia on Sunday, April 29, 2007, 00:40:53 UTC, at a depth of 30.0 km (shallow).

Magnitude
3.8
Minor · mb
Depth
30 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

8 tons of TNT

That is about 1/1,992 of the Hiroshima bomb. A magnitude 5.0 releases about 63 times more energy.

Tectonic setting

80 km

from the nearest mapped plate boundary, between the Sunda and Birds Head plates. Earthquakes cluster along boundaries like this one, where plates collide, pull apart or slide past each other.

Depth: shallow

30 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 1,735 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:

  1. 7.790 km NE of Tobelo, IndonesiaSeptember 8, 1966 · 155 km NE of this epicenter
  2. 7.7148 km SE of Tondano, IndonesiaMay 14, 1932 · 210 km SW of this epicenter
  3. 7.7121 km E of Bitung, IndonesiaAugust 10, 1968 · 125 km W of this epicenter
  4. 7.564 km NNW of Ternate, IndonesiaJune 25, 1907 · 34 km SW of this epicenter
  5. 7.5126 km WNW of Ternate, IndonesiaJanuary 21, 2007 · 131 km SW of this epicenter
  6. 7.5146 km NW of Ternate, IndonesiaAugust 14, 1986 · 93 km W of this epicenter
  7. 7.5210 km SSE of Sarangani, PhilippinesAugust 17, 1912 · 266 km NW of this epicenter
  8. 7.5273 km N of Tobelo, IndonesiaOctober 23, 1914 · 300 km N of this epicenter

History · NOAA

Deadliest earthquakes in this area

NOAA’s significant-earthquake database lists 25 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 173 recorded deaths. The most severe:

  1. 1845M7.0

    N Sulawesi: Menado, Tikala, Tomohon

    8 Feb 1845 · 277 km away · intensity IX

    118 deathsModerate damage ($1–5M)tsunami

  2. 1855

    Maluku: Ternate Island

    14 Jul 1855 · 89 km away · intensity IX

    34 deathsModerate damage ($1–5M)

  3. 1994M7.0

    Kau

    21 Jan 1994 · 79 km away

    9 deathsModerate damage ($1–5M)tsunami

  4. 1932M7.7

    Sulawesi: Kakas,Langowan,Poso,Tondano

    14 May 1932 · 210 km away · intensity VII

    7 deathsSevere damage ($5–24M)tsunami

  5. 2007M7.5

    Molucca Islands: N

    21 Jan 2007 · 131 km away

    4 deathsLimited damage (under $1M)

  6. 2003M7.0

    Morotai, Berebere, Daruba

    26 May 2003 · 189 km away

    1 deathLimited damage (under $1M)

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

Nearby trackers

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