Earthquakes in Olzai
Seismic activity in the surroundings
30 km radiusINGV catalogue epicentres of the last ~12 years, within the given radius from the town centre.
How seismic is this area?
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
Olzai 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.
The “area” is Olzai plus nearby towns.
The seismic history of Olzai
The earthquakes that were actually felt in Olzai over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 2004NF12 December 2004
Imperceptible: only instruments record it.
Tirreno centrale earthquake (M4.1), epicentre 121 km away
- 2000III-IV26 April 2000
Moderate: felt by many indoors; glasses and dishes rattle.
Tirreno centrale earthquake (M4.8), epicentre 123 km away
Source: Italian Macroseismic Database DBMI15 (INGV, CC BY 4.0).
The closest seismic structure
The town lies about 199 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).
Area over time
Earthquake map
23 eventsEarthquakes in the area
Nearby towns
How does it compare with the surroundings?
Olzai sits in one of the most seismically active areas of its province: quakes are a familiar presence here, almost always light.
Each quake is attributed to the town closest to its epicentre: the numbers describe the area, not the municipal territory alone.
Context
Province of Nuoro0 events · 30gSardinia region0 events · 30gFrequently asked questions
Were there earthquakes today in Olzai?
No, no quakes were recorded today in the Olzai area: the latest nearby dates back to 2 months ago.
Is Olzai a seismic area?
Olzai 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 Olzai?
In the last ~12 years of INGV data, the strongest within 30 km of Olzai was magnitude 1.8, in 2022.
When was the last quake near Olzai?
The last quake recorded within 30 km of Olzai 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)