Reviewed by USGSItaly111y ago
M6.0 earthquake 19 km NNE of Gabicce Mare, Italy
Wednesday, May 17, 1916, 12:50:03 UTC · 44.128°N, 12.831°E
A magnitude 6.0 earthquake struck 19 km NNE of Gabicce Mare, Italy on Wednesday, May 17, 1916, 12:50:03 UTC, at a depth of 15.0 km (shallow). It is the strongest earthquake within 300 km since an M6.7 on January 13, 1915.
- Magnitude
- 6.0
- Strong · mw
- Depth
- 15 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
18 kilotons of TNT
That is about the energy of the Hiroshima bomb. It released about 38 times the energy of a magnitude 5.0.
Tectonic setting
571 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
15 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 13 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 6.74 km WNW of San Benedetto dei Marsi, ItalyJanuary 13, 1915 · 242 km S of this epicenter
- 6.07 km ESE of Pokupsko, CroatiaOctober 8, 1909 · 297 km NE of this epicenter
- 5.97 km NE of Novi Vinodolski, CroatiaMarch 12, 1916 · 199 km NE of this epicenter
- 5.67 km NW of Marliana, ItalyOctober 27, 1914 · 171 km W of this epicenter
- 5.51 km WNW of Forlì, ItalyFebruary 19, 1911 · 65 km W of this epicenter
- 5.45 km WSW of Ambra, ItalyAugust 25, 1909 · 132 km SW of this epicenter
- 5.31 km NNE of Chiusaforte, ItalyJuly 10, 1908 · 258 km N of this epicenter
- 5.32 km SW of Baricella, ItalyJanuary 13, 1909 · 119 km NW of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 51 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 81,108 recorded deaths. The most severe:
- 1703
Central Apennino, Norcia, L'Aquila, Perugia
14 Jan 1703 · 151 km away · intensity XI
40,000 deathsExtreme damage ($25M+)
- 1915M7.5
Marsica, Avezzano, Abruzzi
13 Jan 1915 · 243 km away · intensity XI
29,978 deaths$60 million damage
- 1703M6.7
L'Aquila (Aquila)
2 Feb 1703 · 187 km away · intensity XI
10,000 deathsSevere damage ($5–24M)tsunami
- 1789
Citta Di Castello,Sansepolcro
30 Sep 1789 · 86 km away · intensity X
500 deathsSevere damage ($5–24M)
- 1730
Norcia
12 May 1730 · 148 km away · intensity X
200 deathsSevere damage ($5–24M)
- 1768
Santa Sofia
19 Oct 1768 · 68 km away · intensity X
120 deathsSevere damage ($5–24M)
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.