Earthquakes in Alessandria della Rocca
Seismic activity in the surroundings
30 km radiusINGV catalogue epicentres of the last ~11 years, within the given radius from the town centre.
How seismic is this area?
A zone where strong earthquakes are possible: new buildings follow strict anti-seismic criteria.
Official Civil Protection classification (upd. 2025), used for building codes.
Hazard describes the long-term expected shaking: it is not a forecast. Technical value: ag = 0.069 g (10% probability of exceedance in 50 years, rigid soil).
The “area” is Alessandria della Rocca plus nearby towns.
The seismic history of Alessandria della Rocca
The earthquakes that were actually felt in Alessandria della Rocca over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 2005NF21 November 2005
Imperceptible: only instruments record it.
Sicilia centrale earthquake (M4.6), epicentre 57 km away
- 1968VI15 January 1968
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Valle del Belice earthquake (M6.4), epicentre 49 km away
Source: Italian Macroseismic Database DBMI15 (INGV, CC BY 4.0).
The great earthquakes in this area's history
Almost a thousand years of catalogues: the strongest documented events within ~50 km.
Source: Parametric Catalogue of Italian Earthquakes CPTI15 (INGV, CC BY 4.0).
The closest seismic structure
The town lies about 11 km from Sciacca-Gela, one of the seismic structures mapped by INGV geologists.
Faults are mapped to build better and understand the territory: knowing them says nothing about when an earthquake will occur, which remains unpredictable. Source: DISS 3.3 (INGV, CC BY 4.0).
Area over time
Earthquake map
5 eventsEarthquakes in the area
Nearby towns
How does it compare with the surroundings?
Alessandria della Rocca is among the quietest towns of its province: very few epicentres are recorded here.
Each quake is attributed to the town closest to its epicentre: the numbers describe the area, not the municipal territory alone.
Context
Province of Agrigento0 events · 30gSicily region202 events · 30gFrequently asked questions
Were there earthquakes today in Alessandria della Rocca?
No, no quakes were recorded today in the Alessandria della Rocca area: the latest nearby dates back to 3 months ago.
Is Alessandria della Rocca a seismic area?
Alessandria della Rocca is classified in seismic zone 2 by the Civil Protection. A zone where strong earthquakes are possible: new buildings follow strict anti-seismic criteria.
What was the strongest earthquake near Alessandria della Rocca?
In the last ~11 years of INGV data, the strongest within 30 km of Alessandria della Rocca was magnitude 4.1, in 2022.
When was the last quake near Alessandria della Rocca?
The last quake recorded within 30 km of Alessandria della Rocca was 2 months ago.
Tip. Click a nearby town to explore its seismicity.
Data: INGV — National Institute of Geophysics and Volcanology (CC-BY 4.0)