Earthquakes in Ostra
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 = 0.185 g (10% probability of exceedance in 50 years, rigid soil).
The “area” is Ostra plus nearby towns.
The seismic history of Ostra
The earthquakes that were actually felt in Ostra over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 1998V5 April 1998
Rather strong: felt by almost everyone; hanging objects swing.
Appennino umbro-marchigiano earthquake (M4.8), epicentre 55 km away
- 1997IV-V3 October 1997
Rather strong: felt by almost everyone; hanging objects swing.
Appennino umbro-marchigiano earthquake (M5.2), epicentre 68 km away
- 1997V-VI26 September 1997
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Appennino umbro-marchigiano earthquake (M6.0), epicentre 70 km away
- 1997V26 September 1997
Rather strong: felt by almost everyone; hanging objects swing.
Appennino umbro-marchigiano earthquake (M5.7), epicentre 68 km away
- 1972VII14 June 1972
Very strong: hard to stand; chimneys and roof tiles fall, serious damage to weaker buildings.
Costa anconetana earthquake (M4.7), epicentre 28 km away
- 1972VI4 February 1972
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Costa anconetana earthquake (M4.6), epicentre 27 km away
- 1972VI4 February 1972
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Costa anconetana earthquake (M4.4), epicentre 24 km away
- 1972VI25 January 1972
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Costa anconetana earthquake (M4.5), epicentre 30 km away
- 1950V5 September 1950
Rather strong: felt by almost everyone; hanging objects swing.
Gran Sasso earthquake (M5.7), epicentre 121 km away
- 1930VII30 October 1930
Very strong: hard to stand; chimneys and roof tiles fall, serious damage to weaker buildings.
Senigallia earthquake (M5.8), epicentre 22 km away
- 1781VI-VII3 June 1781
Very strong: hard to stand; chimneys and roof tiles fall, serious damage to weaker buildings.
Cagliese earthquake (M6.5), epicentre 50 km away
- 1727VI14 December 1727
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Valle del Metauro earthquake (M5.2), epicentre 25 km away
…and 19 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 7 km from Pesaro-Senigallia, 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?
Ostra 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 Ancona9 events · 30gMarche region343 events · 30gFrequently asked questions
Were there earthquakes today in Ostra?
No, no quakes were recorded today in the Ostra area: the latest nearby dates back to 9 days ago.
Is Ostra a seismic area?
Ostra 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 Ostra?
In the last ~12 years of INGV data, the strongest within 30 km of Ostra was magnitude 4.1, in 2021.
When was the last quake near Ostra?
The last quake recorded within 30 km of Ostra was 7 days ago.
Tip. Click a nearby town to explore its seismicity.
Data: INGV — National Institute of Geophysics and Volcanology (CC-BY 4.0)