Earthquakes today in Siamaggiore
Today, within 30 km: no earthquakes recorded (updated at 12:02). Latest: M1.9 on 31 March 2023 at 14:13, 16 km South of Cabras, 1 km deep.
Seismic activity within 30 km
30 km radiusINGV catalogue epicentres of the last ~12 years, within the given radius from the town centre.
How seismic is Siamaggiore: zone 4
The quietest class: the probability of strong earthquakes is very low.
Official Civil Protection classification (upd. 2025), used for building codes.
The national hazard map provides no value for this area: that happens in the quietest parts of Italy.
Hazard describes the long-term expected shaking: it is not a forecast.
Why the ground rarely shakes here
Siamaggiore sits in one of the most stable areas of Italy: far from the boundary between the Eurasian and African plates, on ancient, rigid crust that hardly accumulates tectonic stress any more.
That is why earthquakes here are rare and almost always weak: a small geological privilege.
“Within 30 km”: epicentres less than 30 km from the centre of Siamaggiore. “In the town”: quakes whose nearest town to the epicentre is Siamaggiore.
The seismic history of Siamaggiore
The earthquakes that were actually felt in Siamaggiore over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 2000II-III26 April 2000
Light: felt by few people, like a passing truck.
Tirreno centrale earthquake (M4.8), epicentre 166 km away
Source: Italian Macroseismic Database DBMI15 (INGV, CC BY 4.0).
The closest seismic structure
The town lies about 197 km from Northern Africa offshore - East, 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).
Over time within 30 km
Earthquake map within 30 km
1 eventsLatest earthquakes within 30 km
Nearby towns
How does it compare with the surroundings?
Siamaggiore 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 Oristano0 events · last 30 daysSardinia region0 events · last 30 daysFrequently asked questions
Were there earthquakes near Siamaggiore today?
No, no quakes were recorded today within 30 km of Siamaggiore. The latest dates back to 31 March 2023.
Is Siamaggiore a seismic area?
Siamaggiore is classified in seismic zone 4 by the Civil Protection. The quietest class: the probability of strong earthquakes is very low.
What was the strongest earthquake near Siamaggiore?
In the INGV catalogue since 2015, the strongest earthquake within 30 km of Siamaggiore was magnitude 1.9, on 31 March 2023.
When was the last quake near Siamaggiore?
The last quake recorded within 30 km of Siamaggiore dates back to 31 March 2023, magnitude 1.9.
Tip. Click a nearby town to explore its seismicity.
Sources:INGV earthquake catalogueDBMI15 macroseismic historyCivil Protection seismic classification
Data: INGV — National Institute of Geophysics and Volcanology (CC-BY 4.0)