Magnitude4.2

Reviewed by USGSIndonesia26y ago

M4.2 earthquake 64 km SW of Labuan, Indonesia

Wednesday, October 25, 2000, 16:47:49 UTC · 6.743°S, 105.374°E

A magnitude 4.2 earthquake struck 64 km SW of Labuan, Indonesia on Wednesday, October 25, 2000, 16:47:49 UTC, at a depth of 33.0 km (shallow).

Magnitude
4.2
Light · mb
Depth
33 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

30 tons of TNT

That is about 1/500 of the Hiroshima bomb. A magnitude 5.0 releases about 16 times more energy.

Tectonic setting

181 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

33 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 November 17, 2000. Most nearby activity right after a large earthquake is aftershocks, which usually become less frequent over days and weeks.

M3M4M51h6h1d3d7d14d30dMainshock M4.2
Time after the mainshock on a logarithmic scale (first hours stretched), magnitude on the vertical axis. M2.5+ events from USGS.
  1. 4.150 km SW of Labuan, Indonesia26y ago · 21 km E of this epicenter
  2. 5.366 km WSW of Labuan, Indonesia26y ago · 28 km NW of this epicenter
  3. 4.659 km SW of Labuan, Indonesia26y ago · 16 km SE of this epicenter

Regional history

Past M5+ earthquakes within 300 km

USGS lists 382 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 18 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 213 recorded deaths. The most severe:

  1. 1994M6.9

    Southern Sumatera, Liwa, Lampung

    15 Feb 1994 · 230 km away

    207 deaths$170 million damage

  2. 1999M6.5

    Pandeglang, W Jawa, Se Sumatera

    21 Dec 1999 · 23 km away

    5 deaths$4 million damage

  3. 1975M5.6

    Java

    9 Feb 1975 · 147 km away · intensity VIII

    1 deathModerate damage ($1–5M)

  4. 1834

    Java: Bogor, Cinajur

    10 Oct 1834 · 180 km away · intensity IX

    Severe damage ($5–24M)

  5. 1933M5.8

    S Sumatera

    25 Jun 1933 · 216 km away · intensity IX

    Moderate damage ($1–5M)

  6. 1982M5.5

    Java, Sukabumi

    10 Feb 1982 · 173 km away

    $4 million damage

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

Nearby trackers

Closest city pages