Reviewed by USGSItaly113y ago
M5.5 earthquake 0 km E of Avigliana, Italy
Monday, October 26, 1914, 03:43:19 UTC · 45.080°N, 7.404°E
A magnitude 5.5 earthquake struck 0 km E of Avigliana, Italy on Monday, October 26, 1914, 03:43:19 UTC, at a depth of 15.0 km (shallow). It is the strongest earthquake within 300 km since an M5.6 on June 11, 1909.
- Magnitude
- 5.5
- Moderate · 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
3 kilotons of TNT
That is about 1/6 of the Hiroshima bomb. It released about 6 times the energy of a magnitude 5.0.
Tectonic setting
656 km
from the nearest mapped plate boundary, between the North American and Pacific 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 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 2 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 34 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 731 recorded deaths. The most severe:
- 1887M6.5
Ligurian Coast
23 Feb 1887 · 142 km away · intensity X
600 deathsSevere damage ($5–24M)
- 1834
Borgo Val Di Taro
14 Feb 1834 · 180 km away · intensity X
60 deathsUnder $1 million damage
- 1909M6.2
Vernegues,Charleval,La Roque D'Antheron
11 Jun 1909 · 221 km away · intensity X
40 deathsModerate damage ($1–5M)
- 1828M5.7
Pavia
9 Oct 1828 · 132 km away · intensity VIII
15 deathsModerate damage ($1–5M)tsunami
- 1837
Italy
11 Apr 1837 · 264 km away · intensity IX
5 deathsModerate damage ($1–5M)
- 1817M8.0
Chamonix Valley
11 Mar 1817 · 103 km away
4 deathsSevere damage ($5–24M)
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.