QuakeScout
Magnitude3.9

Reviewed by USGSIndonesia25y ago

M3.9 earthquake 193 km S of Pagar Alam, Indonesia

Sunday, February 18, 2001, 20:12:18 UTC · 5.774°S, 103.125°E

A magnitude 3.9 earthquake struck 193 km S of Pagar Alam, Indonesia on Sunday, February 18, 2001, 20:12:18 UTC, at a depth of 33.0 km (shallow).

Magnitude
3.9
Minor · 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 earthquake

In context

How big was it, and why here?

Energy released

11 tons of TNT

That is about 1/1,410 of the Hiroshima bomb. A magnitude 5.0 releases about 45 times more energy.

Tectonic setting

162 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 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 654 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:

  1. 7.9103 km S of Bengkulu, IndonesiaJune 4, 2000 · 164 km NW of this epicenter
  2. 7.573 km WSW of Bengkulu, IndonesiaJune 25, 1914 · 256 km NW of this epicenter
  3. 7.548 km SW of Kotabumi, IndonesiaJune 24, 1933 · 179 km E of this epicenter
  4. 7.4102 km SSE of Bengkulu, IndonesiaFebruary 13, 2001 · 137 km NW of this epicenter
  5. 7.3161 km S of Bengkulu, IndonesiaSeptember 25, 1931 · 111 km NW of this epicenter
  6. 7.0164 km SSW of Pagar Alam, IndonesiaFebruary 10, 1931 · 75 km NW of this epicenter
  7. 7.0119 km S of Bengkulu, IndonesiaOctober 1, 1975 · 143 km NW of this epicenter
  8. 7.030 km WNW of Labuan, IndonesiaApril 1, 1943 · 276 km E of this epicenter

History · NOAA

Deadliest earthquakes in this area

NOAA’s significant-earthquake database lists 17 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 344 recorded deaths. The most severe:

  1. 1994M6.9

    Southern Sumatera, Liwa, Lampung

    15 Feb 1994 · 158 km away

    207 deaths$170 million damage

  2. 2000M7.9

    Sumatra: Bengkulu, Enggano

    4 Jun 2000 · 164 km away · intensity VI

    103 deaths$6 million damage

  3. 1914M7.6

    Sumatera

    25 Jun 1914 · 251 km away

    20 deathsLimited damage (under $1M)tsunami

  4. 1979M6.6

    S Sumatera

    15 Dec 1979 · 279 km away

    8 deathsSevere damage ($5–24M)

  5. 1999M6.5

    Pandeglang, W Jawa, Se Sumatera

    21 Dec 1999 · 294 km away

    5 deaths$4 million damage

  6. 2000M6.7

    Southern Sumatera: Lahat

    7 Jun 2000 · 187 km away

    1 deathModerate damage ($1–5M)

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

Nearby trackers

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