Earthquakes in Ischia di Castro
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?
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 = 0.129 g (10% probability of exceedance in 50 years, rigid soil).
The “area” is Ischia di Castro plus nearby towns.
The seismic history of Ischia di Castro
The earthquakes that were actually felt in Ischia di Castro over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 2000IV1 April 2000
Moderate: felt by many indoors; glasses and dishes rattle.
Monte Amiata earthquake (M4.5), epicentre 34 km away
- 1997III14 October 1997
Light: felt by few people, like a passing truck.
Valnerina earthquake (M5.6), epicentre 109 km away
- 1997III-IV26 September 1997
Moderate: felt by many indoors; glasses and dishes rattle.
Appennino umbro-marchigiano earthquake (M6.0), epicentre 111 km away
- 1997III26 September 1997
Light: felt by few people, like a passing truck.
Appennino umbro-marchigiano earthquake (M5.7), epicentre 114 km away
- 1988V-VI7 August 1988
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Farnese earthquake (M3.5), epicentre 7 km away
- 1980III8 September 1980
Light: felt by few people, like a passing truck.
Costa Grossetana earthquake (M4.4), epicentre 61 km away
- 1971V6 February 1971
Rather strong: felt by almost everyone; hanging objects swing.
Tuscania earthquake (M4.8), epicentre 18 km away
- 1940IV16 October 1940
Moderate: felt by many indoors; glasses and dishes rattle.
Val di Paglia earthquake (M5.3), epicentre 43 km away
- 1919III22 October 1919
Light: felt by few people, like a passing truck.
Anzio earthquake (M5.2), epicentre 141 km away
- 1919IV-V10 September 1919
Rather strong: felt by almost everyone; hanging objects swing.
Val di Paglia earthquake (M5.4), epicentre 31 km away
- 1909VI20 September 1909
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Ischia di Castro earthquake (M4.6), epicentre 8 km away
- 1889V-VI21 July 1889
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Ischia di Castro earthquake (M4.4), epicentre 11 km away
…and 5 more documented effects in this town's history.
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 87 km from Mugello-Citta' di Castello-Leonessa, 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
60 eventsEarthquakes in the area
Nearby towns
How does it compare with the surroundings?
Ischia di Castro is about average for its province in recorded quakes.
Each quake is attributed to the town closest to its epicentre: the numbers describe the area, not the municipal territory alone.
Context
Province of Viterbo1 events · 30gLazio region78 events · 30gFrequently asked questions
Were there earthquakes today in Ischia di Castro?
No, no quakes were recorded today in the Ischia di Castro area: the latest nearby dates back to 16 days ago.
Is Ischia di Castro a seismic area?
Ischia di Castro 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 Ischia di Castro?
In the last ~12 years of INGV data, the strongest within 30 km of Ischia di Castro was magnitude 3.4, in 2016.
When was the last quake near Ischia di Castro?
The last quake recorded within 30 km of Ischia di Castro was 16 days ago.
Tip. Click a nearby town to explore its seismicity.
Data: INGV — National Institute of Geophysics and Volcanology (CC-BY 4.0)