Magnitude4.5

Reviewed by USGSIndonesia26y ago

M4.5 earthquake 66 km SW of Pagar Alam, Indonesia

Thursday, September 14, 2000, 20:07:52 UTC · 4.459°S, 102.831°E

A magnitude 4.5 earthquake struck 66 km SW of Pagar Alam, Indonesia on Thursday, September 14, 2000, 20:07:52 UTC, at a depth of 33.0 km (shallow). It is the strongest earthquake within 300 km since an M6.0 on September 12, 2000.

Magnitude
4.5
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

85 tons of TNT

That is about 1/178 of the Hiroshima bomb. A magnitude 5.0 releases about 6 times more energy.

Tectonic setting

234 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 1 M2.5+ earthquake within 50 km in the following 30 days; the largest was M4.8 on October 7, 2000. Most nearby activity right after a large earthquake is aftershocks, which usually become less frequent over days and weeks.

M3M4M51h6h1d3d7d14d30dMainshock M4.5
Time after the mainshock on a logarithmic scale (first hours stretched), magnitude on the vertical axis. M2.5+ events from USGS.
  1. 4.892 km SSW of Pagar Alam, Indonesia26y ago · 31 km S of this epicenter

Regional history

Past M5+ earthquakes within 300 km

USGS lists 564 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 13 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 339 recorded deaths. The most severe:

  1. 1994M6.9

    Southern Sumatera, Liwa, Lampung

    15 Feb 1994 · 173 km away

    207 deaths$170 million damage

  2. 2000M7.9

    Sumatra: Bengkulu, Enggano

    4 Jun 2000 · 87 km away · intensity VI

    103 deaths$6 million damage

  3. 1914M7.6

    Sumatera

    25 Jun 1914 · 127 km away

    20 deathsLimited damage (under $1M)tsunami

  4. 1979M6.6

    S Sumatera

    15 Dec 1979 · 130 km away

    8 deathsSevere damage ($5–24M)

  5. 2000M6.7

    Southern Sumatera: Lahat

    7 Jun 2000 · 104 km away

    1 deathModerate damage ($1–5M)

  6. 1770M7.0

    Sumatra:

    1770 · 110 km away

    Severe damage ($5–24M)tsunami

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

Nearby trackers

Closest city pages