Earthquakes in San Pier d'Isonzo
Seismic activity in the surroundings
30 km radiusINGV catalogue epicentres of the last ~11 years, within the given radius from the town centre.
How seismic is this area?
Medium-low seismicity: strong quakes are rare, but not impossible.
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 = 0.142 g (10% probability of exceedance in 50 years, rigid soil).
The “area” is San Pier d'Isonzo plus nearby towns.
The seismic history of San Pier d'Isonzo
The earthquakes that were actually felt in San Pier d'Isonzo over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 2004III-IV12 July 2004
Moderate: felt by many indoors; glasses and dishes rattle.
Slovenia nord-occidentale earthquake (M5.1), epicentre 53 km away
- 1998NF31 August 1998
Imperceptible: only instruments record it.
Slovenia centrale earthquake (M4.3), epicentre 110 km away
- 1998NF13 March 1998
Imperceptible: only instruments record it.
Carniola interna earthquake (M4.3), epicentre 68 km away
- 1992NF21 February 1992
Imperceptible: only instruments record it.
Costa croata settentrionale earthquake (M4.3), epicentre 81 km away
- 1991III-IV5 October 1991
Moderate: felt by many indoors; glasses and dishes rattle.
Prealpi Giulie earthquake (M4.5), epicentre 46 km away
- 1990III-IV11 November 1990
Moderate: felt by many indoors; glasses and dishes rattle.
Slovenia occidentale earthquake (M4.6), epicentre 56 km away
- 1988NF1 February 1988
Imperceptible: only instruments record it.
Friuli earthquake (M4.1), epicentre 64 km away
- 1976IV-V6 May 1976
Rather strong: felt by almost everyone; hanging objects swing.
Friuli earthquake (M6.5), epicentre 51 km away
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 1 km from Northern Trieste Gulf, 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
6 eventsEarthquakes in the area
Nearby towns
How does it compare with the surroundings?
San Pier d'Isonzo 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 Gorizia0 events · 30gFriuli-Venezia Giulia region22 events · 30gFrequently asked questions
Were there earthquakes today in San Pier d'Isonzo?
No, no quakes were recorded today in the San Pier d'Isonzo area: the latest nearby dates back to 14 months ago.
Is San Pier d'Isonzo a seismic area?
San Pier d'Isonzo is classified in seismic zone 3 by the Civil Protection. Medium-low seismicity: strong quakes are rare, but not impossible.
What was the strongest earthquake near San Pier d'Isonzo?
In the last ~11 years of INGV data, the strongest within 30 km of San Pier d'Isonzo was magnitude 2.6, in 2024.
When was the last quake near San Pier d'Isonzo?
The last quake recorded within 30 km of San Pier d'Isonzo was 6 months ago.
Tip. Click a nearby town to explore its seismicity.
Data: INGV — National Institute of Geophysics and Volcanology (CC-BY 4.0)