Magnitude4.2

Reviewed by USGSMontenegro47y ago

M4.2 earthquake 10 km S of Bar, Montenegro

Wednesday, July 4, 1979, 23:44:15 UTC · 41.996°N, 19.080°E

A magnitude 4.2 earthquake struck 10 km S of Bar, Montenegro on Wednesday, July 4, 1979, 23:44:15 UTC, at a depth of 10.0 km (shallow).

Magnitude
4.2
Light · mb
Depth
10 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

326 km

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

Depth: shallow

10 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 5 M2.5+ earthquakes within 50 km in the following 30 days; the largest was M4.5 on August 2, 1979. Most nearby activity right after a large earthquake is aftershocks, which usually become less frequent over days and weeks.

Regional history

Past M5+ earthquakes within 300 km

USGS lists 158 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 69 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 4,420 recorded deaths. The most severe:

  1. 1851M6.6

    Vlore (Valona),Berat; Turkey

    12 Oct 1851 · 174 km away · intensity XI

    2,000 deathsExtreme damage ($25M+)tsunami

  2. 1963M6.0

    Macedonia: Skopje

    26 Jul 1963 · 184 km away · intensity X

    1,070 deaths$1.0 billion damage

  3. 1851

    Berat

    17 Oct 1851 · 174 km away · intensity X

    400 deathsSevere damage ($5–24M)

  4. 1920M6.2

    Tepelene, Dragoti, Peshtani, Maricaj

    26 Nov 1920 · 214 km away · intensity XI

    200 deathsSevere damage ($5–24M)

  5. 1979M6.9

    Montenegro

    15 Apr 1979 · 15 km away · intensity IX

    131 deaths$2.7 billion damagetsunami

  6. 1905M6.6

    Shkoder

    1 Jun 1905 · 44 km away · intensity X

    120 deaths$24 million damage

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

Nearby trackers

Closest city pages