Reviewed by USGSItaly99y ago
M5.8 earthquake 6 km NNW of Tropea, Italy
Wednesday, March 7, 1928, 10:55:12 UTC · 38.725°N, 15.855°E
A magnitude 5.8 earthquake struck 6 km NNW of Tropea, Italy on Wednesday, March 7, 1928, 10:55:12 UTC, at a depth of 65.0 km (shallow). It is the strongest earthquake within 300 km since an M6.0 on July 7, 1915.
- Magnitude
- 5.8
- Moderate · mw
- Depth
- 65 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 earthquake
In context
How big was it, and why here?
Energy released
8 kilotons of TNT
That is about 1/2 of the Hiroshima bomb. It released about 17 times the energy of a magnitude 5.0.
Tectonic setting
47 km
from the nearest mapped plate boundary, between the Eurasian and African plates. Earthquakes cluster along boundaries like this one, where plates collide, pull apart or slide past each other.
Depth: shallow
65 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 75 km
USGS has not published any M2.5+ earthquake within 75 km in the 30 days after this event.
Regional history
Past M5+ earthquakes within 300 km
USGS lists 14 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 7.25 km W of San Nicolò, ItalySeptember 8, 1905 · 12 km SW of this epicenter
- 7.1The 1908 Messina, Italy Earthquake and TsunamiDecember 28, 1908 · 90 km S of this epicenter
- 6.572 km WSW of Cittadella del Capo, ItalyAugust 1, 1910 · 98 km NW of this epicenter
- 6.025 km W of San Marco, ItalyJuly 7, 1915 · 203 km NW of this epicenter
- 5.91 km ENE of Cairano, ItalyJune 7, 1910 · 245 km N of this epicenter
- 5.95 km NW of Africo Vecchio, ItalyOctober 23, 1907 · 70 km S of this epicenter
- 5.89 km ESE of Marina di Camerota, ItalyApril 5, 1911 · 142 km N of this epicenter
- 5.75 km SSE of Sartano, ItalyJune 28, 1913 · 89 km N of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 66 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 155,172 recorded deaths. The most severe:
- 1908M7.0
Messina, Sicily, Calabria
28 Dec 1908 · 66 km away · intensity XI
80,000 deaths$116 million damagetsunami
- 1783M6.9
Tyrrhenian Calabria
5 Feb 1783 · 48 km away · intensity XI
30,000 deathsExtreme damage ($25M+)tsunami
- 1857M6.5
Campania, Potenza
16 Dec 1857 · 176 km away · intensity X
10,000 deathsExtreme damage ($25M+)
- 1757
Siracusa (Syracuse)
6 Aug 1757 · 206 km away · intensity IX
10,000 deathsSevere damage ($5–24M)
- 1857
Calabria,Montemurro
16 Sep 1857 · 89 km away
10,000 deathsSevere damage ($5–24M)
- 1805
Molise, Rosolone, Napoli (Naples), Isernia
26 Jul 1805 · 292 km away · intensity XI
5,600 deathsExtreme damage ($25M+)
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.