Reviewed by USGSMontenegro47y ago
M3.6 earthquake 8 km SW of Ulcinj, Montenegro
Friday, July 20, 1979, 02:56:03 UTC · 41.885°N, 19.147°E
A magnitude 3.6 earthquake struck 8 km SW of Ulcinj, Montenegro on Friday, July 20, 1979, 02:56:03 UTC, at a depth of 10.0 km (shallow).
- Magnitude
- 3.6
- Minor · 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
4 tons of TNT
That is about 1/3,975 of the Hiroshima bomb. A magnitude 5.0 releases about 126 times more energy.
Tectonic setting
316 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 3 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 159 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 6.96 km E of Stari Bar, MontenegroApril 15, 1979 · 24 km N of this epicenter
- 6.76 km NW of Lukovo, North MacedoniaNovember 30, 1967 · 129 km SE of this epicenter
- 6.73 km SW of Kuklis, North MacedoniaMarch 8, 1931 · 296 km E of this epicenter
- 6.617 km NNW of Bilisht, AlbaniaFebruary 18, 1911 · 192 km SE of this epicenter
- 6.59 km E of Stari Bar, MontenegroJune 1, 1905 · 24 km N of this epicenter
- 6.24 km ENE of Baška Voda, CroatiaJanuary 11, 1962 · 241 km NW of this epicenter
- 6.211 km SSW of Maliq, AlbaniaMay 26, 1960 · 188 km SE of this epicenter
- 6.28 km WSW of Budva, MontenegroMay 24, 1979 · 52 km NW of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 73 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 4,497 recorded deaths. The most severe:
- 1851M6.6
Vlore (Valona),Berat; Turkey
12 Oct 1851 · 161 km away · intensity XI
2,000 deathsExtreme damage ($25M+)tsunami
- 1963M6.0
Macedonia: Skopje
26 Jul 1963 · 180 km away · intensity X
1,070 deaths$1.0 billion damage
- 1851
Berat
17 Oct 1851 · 161 km away · intensity X
400 deathsSevere damage ($5–24M)
- 1920M6.2
Tepelene, Dragoti, Peshtani, Maricaj
26 Nov 1920 · 201 km away · intensity XI
200 deathsSevere damage ($5–24M)
- 1979M6.9
Montenegro
15 Apr 1979 · 24 km away · intensity IX
131 deaths$2.7 billion damagetsunami
- 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.