Earthquakes in Chianni
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?
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 = 0.140 g (10% probability of exceedance in 50 years, rigid soil).
The “area” is Chianni plus nearby towns.
The seismic history of Chianni
The earthquakes that were actually felt in Chianni over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 1995NF10 October 1995
Imperceptible: only instruments record it.
Lunigiana earthquake (M4.8), epicentre 89 km away
- 1987NF22 January 1987
Imperceptible: only instruments record it.
Costa pisano-livornese earthquake (M4.2), epicentre 38 km away
- 1984IV22 April 1984
Moderate: felt by many indoors; glasses and dishes rattle.
Costa pisano-livornese earthquake (M4.6), epicentre 35 km away
- 1906NF21 April 1906
Imperceptible: only instruments record it.
Valdelsa earthquake (M4.3), epicentre 40 km away
- 1904NF10 June 1904
Imperceptible: only instruments record it.
Frignano earthquake (M4.8), epicentre 84 km away
- 1846VIII14 August 1846
Ruinous: partial collapses in ordinary buildings, widespread heavy damage.
Colline Pisane earthquake (M6.0), epicentre 7 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 8 km from Livorno Hills, 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?
Chianni 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 Pisa72 events · 30gTuscany region113 events · 30gFrequently asked questions
Were there earthquakes today in Chianni?
No, no quakes were recorded today in the Chianni area: the latest nearby dates back to 19 days ago.
Is Chianni a seismic area?
Chianni 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 Chianni?
In the last ~12 years of INGV data, the strongest within 30 km of Chianni was magnitude 3.2, in 2016.
When was the last quake near Chianni?
The last quake recorded within 30 km of Chianni was 2 days ago.
Tip. Click a nearby town to explore its seismicity.
Data: INGV — National Institute of Geophysics and Volcanology (CC-BY 4.0)