Province of Sud Sardegna

Earthquakes in Castiadas

1.0
very light
LATEST QUAKE

2 km NE Escalaplano (CA)

24 months ago · 17 Jun, 11:15
Depth 10 km

Seismic activity in the surroundings

30 km radius
2,631
days since the last quake nearby
1
quakes recorded since 2015
on average, one quake every
1.4
The strongest within 30 km
1 km South of Villasimius
88 months ago · 30 Mar, 21:21

INGV catalogue epicentres of the last ~11 years, within the given radius from the town centre.

How seismic is this area?

Zone4
Seismic 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

Castiadas 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.

Closest earthquake
Go to Villasimius Earthquake details
0
In the town
total on record
0
In the town
last 12 months
0
In the area
last 12 months
M1.8
Strongest ever
In the area

The “area” is Castiadas plus nearby towns.

No earthquakes recorded in Castiadas · 1,507 inhabitants

The great earthquakes in this area's history

Almost a thousand years of catalogues: the strongest documented events within ~50 km.

16164.9
Sardegna meridionale earthquake
4 June 1616 · 10 km from here

Source: Parametric Catalogue of Italian Earthquakes CPTI15 (INGV, CC BY 4.0).

The closest seismic structure

Northern Africa offshore - East

The town lies about 88 km from Northern Africa offshore - East, one of the seismic structures mapped by INGV geologists.

estimated maximum magnitude 8.0between 1 and 25 km deep

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

June 2026no events
Jul
Oct
Jan '25
Apr
Jul
Oct
Jan '26
Apr

Earthquake map

30 events
Magnitude:lightweakmoderatestrong

Earthquakes in the area

1.0
2 km NE Escalaplano (CA)
49 km North · 10 km
24 months ago
17 Jun, 11:15
1.6
6 km NW Escalaplano (CA)
54 km North-West · 1 km
35 months ago
21 Jul, 09:11
1.5
5 km SE Orroli (CA)
54 km North-West · 1 km
35 months ago
19 Jul, 09:48
1.7
6 km E Orroli (CA)
54 km North-West · 1 km
36 months ago
14 Jul, 09:07
1.7
5 km NW Escalaplano (CA)
53 km North-West · 1 km
36 months ago
12 Jul, 09:53
1.7
6 km NW Escalaplano (CA)
54 km North-West · 1 km
36 months ago
26 Jun, 10:48
1.7
5 km SE Orroli (CA)
54 km North-West · 1 km
37 months ago
13 Jun, 10:18
1.5
6 km NW Escalaplano (CA)
54 km North-West · 1 km
37 months ago
7 Jun, 09:56
1.7
6 km NW Escalaplano (CA)
54 km North-West · 1 km
37 months ago
31 May, 10:13
1.8
6 km SE Orroli (CA)
54 km North-West · 1 km
37 months ago
26 May, 10:03

Nearby towns

How does it compare with the surroundings?

Castiadas is among the quietest towns of its province: very few epicentres are recorded here.

quietermore active
More epicentres than 0% of the 107 towns in the province.
Castiadas0
Nearby towns average2.5

Each quake is attributed to the town closest to its epicentre: the numbers describe the area, not the municipal territory alone.

Context

Province of Sud Sardegna0 events · 30gSardinia region0 events · 30g
ISTAT code: 111011

Frequently asked questions

Were there earthquakes today in Castiadas?

No, no quakes were recorded today in the Castiadas area: the latest nearby dates back to 24 months ago.

Is Castiadas a seismic area?

Castiadas 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 Castiadas?

In the last ~11 years of INGV data, the strongest within 30 km of Castiadas was magnitude 1.4, in 2019.

When was the last quake near Castiadas?

The last quake recorded within 30 km of Castiadas was 88 months ago.

Tip. Click a nearby town to explore its seismicity.

Data: INGV — National Institute of Geophysics and Volcanology (CC-BY 4.0)

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