Magnitude4.8

Reviewed by USGSIndonesia19y ago

M4.8 earthquake 103 km SSW of Sungai Penuh, Indonesia

Wednesday, October 10, 2007, 11:04:20 UTC · 2.965°S, 101.155°E

A magnitude 4.8 earthquake struck 103 km SSW of Sungai Penuh, Indonesia on Wednesday, October 10, 2007, 11:04:20 UTC, at a depth of 35.0 km (shallow). It is the strongest earthquake within 300 km since an M5.9 on October 10, 2007.

Magnitude
4.8
Light · mb
Depth
35 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: 50 km aftershock search area

In context

How big was it, and why here?

Energy released

239 tons of TNT

That is about 1/63 of the Hiroshima bomb. A magnitude 5.0 releases about 2 times more energy.

Tectonic setting

139 km

from the nearest mapped plate boundary, between the North Andes and South American plates. Earthquakes this far from a boundary happen on faults inside a plate, often less frequently but sometimes strongly.

Depth: shallow

35 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 lists 3 M2.5+ earthquakes within 50 km in the following 30 days; the largest was M5.3 on October 31, 2007. Most nearby activity right after a large earthquake is aftershocks, which usually become less frequent over days and weeks.

M3M4M51h6h1d3d7d14d30dMainshock M4.8
Time after the mainshock on a logarithmic scale (first hours stretched), magnitude on the vertical axis. M2.5+ events from USGS.
  1. 5.3104 km S of Sungai Penuh, Indonesia19y ago · 15 km E of this epicenter
  2. 4.3120 km WNW of Bengkulu, Indonesia19y ago · 46 km S of this epicenter
  3. 3.7141 km SSW of Sungai Penuh, Indonesia19y ago · 39 km SW of this epicenter

Regional history

Past M5+ earthquakes within 300 km

USGS lists 620 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:

History · NOAA

Deadliest earthquakes in this area

NOAA’s significant-earthquake database lists 23 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 313 recorded deaths. The most severe:

  1. 2000M7.9

    Sumatra: Bengkulu, Enggano

    4 Jun 2000 · 221 km away · intensity VI

    103 deaths$6 million damage

  2. 1995M6.8

    Sumatera, Jambi Province

    6 Oct 1995 · 107 km away

    84 deathsExtreme damage ($25M+)

  3. 2007M6.4

    Sumatra: Southern

    6 Mar 2007 · 284 km away · intensity VIII

    67 deathsSevere damage ($5–24M)

  4. 2007M8.4

    Sumatra

    12 Sep 2007 · 165 km away

    25 deathsSevere damage ($5–24M)tsunami

  5. 1914M7.6

    Sumatera

    25 Jun 1914 · 130 km away

    20 deathsLimited damage (under $1M)tsunami

  6. 1979M6.6

    S Sumatera

    15 Dec 1979 · 177 km away

    8 deathsSevere damage ($5–24M)

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

Nearby trackers

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