Magnitude3.9

Reviewed by USGSPapua New Guinea31y ago

M3.9 earthquake 185 km WNW of Panguna, Papua New Guinea

Monday, November 13, 1995, 02:13:58 UTC · 5.600°S, 153.966°E

A magnitude 3.9 earthquake struck 185 km WNW of Panguna, Papua New Guinea on Monday, November 13, 1995, 02:13:58 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 earthquakeDashed circle: 50 km aftershock search area

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

39 km

from the nearest mapped plate boundary, between the North Bismarck and South Bismarck plates. Earthquakes cluster along boundaries like this one, where plates collide, pull apart or slide past each other.

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 2 M2.5+ earthquakes within 50 km in the following 30 days; the largest was M4.4 on November 27, 1995. Most nearby activity right after a large earthquake is aftershocks, which usually become less frequent over days and weeks.

M3M41h6h1d3d7d14d30dMainshock M3.9
Time after the mainshock on a logarithmic scale (first hours stretched), magnitude on the vertical axis. M2.5+ events from USGS.
  1. 4.4191 km SE of Kokopo, Papua New Guinea31y ago · 44 km W of this epicenter
  2. 4.3148 km WNW of Panguna, Papua New Guinea31y ago · 40 km E of this epicenter

Regional history

Past M5+ earthquakes within 300 km

USGS lists 1,498 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 37 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 531 recorded deaths. The most severe:

  1. 1937

    Keravia, Rabaul, Kokopo

    28 May 1937 · 245 km away · intensity VIII

    507 deathsLimited damage (under $1M)tsunami

  2. 1983M6.4

    Ulawun, Rabaul

    22 Dec 1983 · 233 km away · intensity V

    10 deaths$25 million damage

  3. 1939M7.7

    Bougainville Island

    30 Jan 1939 · 227 km away

    5 deathsModerate damage ($1–5M)tsunami

  4. 1941M7.4

    Bismarck Sea

    13 Jan 1941 · 263 km away

    4 deathsModerate damage ($1–5M)tsunami

  5. 1971M7.9

    New Ireland: Bougainville

    14 Jul 1971 · 13 km away · intensity IX

    3 deathsUnder $1 million damagetsunami

  6. 1989M5.4

    New Britain: Rabaul

    10 Mar 1989 · 190 km away · intensity V

    1 death

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

Nearby trackers

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