Earthquakes today in Castelgrande
Today, within 30 km: no earthquakes recorded (updated at 11:39). Latest: M1.2 on 9 October 2026 at 08:08, 4 km South of Valva, 10 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 Castelgrande: zone 1
The most severe class: strong earthquakes are possible here and buildings follow the strictest anti-seismic rules.
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 = 0.252 g (10% probability of exceedance in 50 years, rigid soil).
“Within 30 km”: epicentres less than 30 km from the centre of Castelgrande. “In the town”: quakes whose nearest town to the epicentre is Castelgrande.
The seismic history of Castelgrande
The earthquakes that were actually felt in Castelgrande over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 2004IV-V24 February 2004
Rather strong: felt by almost everyone; hanging objects swing.
Appennino lucano earthquake (M4.2), epicentre 9 km away
- 1990V-VI5 May 1990
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Potentino earthquake (M5.8), epicentre 26 km away
- 1987V28 January 1987
Rather strong: felt by almost everyone; hanging objects swing.
Potentino earthquake (M4.5), epicentre 11 km away
- 1981V29 November 1981
Rather strong: felt by almost everyone; hanging objects swing.
Potentino earthquake (M4.5), epicentre 10 km away
- 1980VI3 December 1980
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Irpinia-Basilicata earthquake (M4.8), epicentre 8 km away
- 1980VIII23 November 1980
Ruinous: partial collapses in ordinary buildings, widespread heavy damage.
Irpinia-Basilicata earthquake (M6.8), epicentre 14 km away
- 1930V-VI23 July 1930
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Irpinia earthquake (M6.7), epicentre 32 km away
- 1910VII7 June 1910
Very strong: hard to stand; chimneys and roof tiles fall, serious damage to weaker buildings.
Irpinia-Basilicata earthquake (M5.8), epicentre 12 km away
- 1857VI-VII16 December 1857
Very strong: hard to stand; chimneys and roof tiles fall, serious damage to weaker buildings.
Basilicata earthquake (M7.1), epicentre 60 km away
- 1851VI14 August 1851
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Vulture earthquake (M6.5), epicentre 27 km away
- 1694X8 September 1694
Completely destructive: most buildings are destroyed.
Irpinia-Basilicata earthquake (M6.7), epicentre 8 km away
- 1561VII-VIII19 August 1561
Ruinous: partial collapses in ordinary buildings, widespread heavy damage.
Vallo di Diano earthquake (M6.7), epicentre 27 km away
…and 13 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 sits above this source area: the deep structure where this area's earthquakes can originate.
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
60 eventsLatest earthquakes within 30 km
Nearby towns
How does it compare with the surroundings?
Castelgrande 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 Potenza27 events · last 30 daysBasilicata region30 events · last 30 daysFrequently asked questions
Were there earthquakes near Castelgrande today?
No, no quakes were recorded today within 30 km of Castelgrande. The latest dates back to 9 October 2026.
Is Castelgrande a seismic area?
Castelgrande is classified in seismic zone 1 by the Civil Protection. The most severe class: strong earthquakes are possible here and buildings follow the strictest anti-seismic rules.
What was the strongest earthquake near Castelgrande?
In the INGV catalogue since 2015, the strongest earthquake within 30 km of Castelgrande was magnitude 3.9, on 10 February 2024.
When was the last quake near Castelgrande?
The last quake recorded within 30 km of Castelgrande dates back to 9 October 2026, magnitude 1.2.
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)