QuakeScout
Magnitude6.7

Reviewed by USGSIndonesia72y ago

M6.7 earthquake 46 km NE of Bima, Indonesia

Tuesday, November 2, 1954, 08:24:16 UTC · 8.128°S, 118.986°E

A magnitude 6.7 earthquake struck 46 km NE of Bima, Indonesia on Tuesday, November 2, 1954, 08:24:16 UTC, at a depth of 20.0 km (shallow). It is the strongest earthquake within 300 km since an M6.7 on November 28, 1928.

Magnitude
6.7
Strong · mw
Depth
20 km
Shallow
Felt reports
0
Did You Feel It?
Est. shaking
VI
Strong (ShakeMap)
PAGER alert
None
Not issued
Tsunami
No flag
USGS feed

Outlined circle: this earthquakeColoured lines: estimated shaking intensity (USGS ShakeMap)

In context

How big was it, and why here?

Energy released

194 kilotons of TNT

That is about 13 times the Hiroshima bomb. It released about 407 times the energy of a magnitude 5.0.

Tectonic setting

173 km

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

Depth: shallow

20 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 100 km

USGS has not published any M2.5+ earthquake within 100 km in the 30 days after this event.

Regional history

Past M5+ earthquakes within 300 km

USGS lists 20 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:

  1. 7.0133 km NNE of Pototano, IndonesiaJuly 5, 1911 · 148 km NW of this epicenter
  2. 7.084 km SSE of Dompu, IndonesiaMay 9, 1922 · 131 km S of this epicenter
  3. 6.724 km ESE of Ruteng, IndonesiaNovember 28, 1928 · 195 km E of this epicenter
  4. 6.386 km N of Ruteng, IndonesiaApril 23, 1949 · 176 km E of this epicenter
  5. 6.377 km WSW of Waingapu, IndonesiaOctober 15, 1923 · 213 km S of this epicenter
  6. 6.362 km S of Waingapu, IndonesiaOctober 15, 1923 · 271 km SE of this epicenter
  7. 6.3139 km SSE of Dompu, IndonesiaDecember 21, 1938 · 183 km S of this epicenter
  8. 6.384 km S of Komodo, IndonesiaJanuary 2, 1936 · 149 km SE of this epicenter

History · NOAA

Deadliest earthquakes in this area

NOAA’s significant-earthquake database lists 8 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 500 recorded deaths. The most severe:

  1. 1820M7.5

    Sulawesi: Makasar

    29 Dec 1820 · 125 km away · intensity X

    500 deathsModerate damage ($1–5M)tsunami

  2. 1828

    Sulawesi

    29 Dec 1828 · 125 km away · intensity IX

    Severe damage ($5–24M)tsunami

  3. 1818M8.5

    Sumbawa Island: Bima

    8 Nov 1818 · 252 km away

    Moderate damage ($1–5M)tsunami

  4. 1836M7.5

    Flores Sea

    28 Nov 1836 · 37 km away

    Limited damage (under $1M)tsunami

  5. 1954M6.8

    Sumabawa: Bima,Raba

    2 Nov 1954 · 14 km away · intensity VIII

    Limited damage (under $1M)

  6. 1837

    Sumbawa Island: Bima

    28 Nov 1837 · 68 km away · intensity IX

    Limited damage (under $1M)

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

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