Province of Grosseto

Earthquakes today in Monterotondo Marittimo

Today, within 30 km: no earthquakes recorded (updated at 11:30). Latest: M1.4 on 5 October 2026 at 23:21, 3 km East of Castelnuovo di Val di Cecina, 10 km deep.

1.4
very light

Latest earthquake within 30 km

3 km East of Castelnuovo di Val di Cecina

8 days ago · 5 Oct 2026, 23:21
Depth 10 km

Seismic activity within 30 km

30 km radius
8
days since the last quake within 30 km
1,504
quakes recorded since 2015
~3 days
on average, one quake every
3.7
The strongest within 30 km
1 km East of Castelnuovo di Val di Cecina
8 years ago · 1 May 2018, 07:16

INGV catalogue epicentres of the last ~12 years, within the given radius from the town centre.

How seismic is Monterotondo Marittimo: zone 3

Zone3
Seismic zone 3

Medium-low seismicity: strong quakes are rare, but not impossible.

Official Civil Protection classification (upd. 2025), used for building codes.

Low
Expected shaking, compared with the other Italian municipalities (INGV MPS04 model)

Hazard describes the long-term expected shaking: it is not a forecast. Technical value: ag = 0.100 g (10% probability of exceedance in 50 years, rigid soil).

Closest earthquake
Earthquake details
147
In the town
total on record
40
In the town
last 12 months
152
Within 30 km
last 12 months
M3.7
Strongest since 2015
Within 30 km

“Within 30 km”: epicentres less than 30 km from the centre of Monterotondo Marittimo. “In the town”: quakes whose nearest town to the epicentre is Monterotondo Marittimo.

Latest earthquake attributed to Monterotondo Marittimo: 2 October 2026 · 1,414 inhabitants

The seismic history of Monterotondo Marittimo

The earthquakes that were actually felt in Monterotondo Marittimo over the centuries, with the intensity observed on site (Mercalli MCS scale).

  1. 1998V-VI20 May 1998

    Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.

    Colline Metallifere earthquake (M4.2), epicentre 5 km away

  2. 1993IV6 August 1993

    Moderate: felt by many indoors; glasses and dishes rattle.

    Colline Metallifere earthquake (M4.0), epicentre 22 km away

  3. 1990V-VI24 June 1990

    Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.

    Colline Metallifere earthquake (M3.6), epicentre 7 km away

  4. 1980II8 September 1980

    Very light: felt only by a few people at rest, on upper floors.

    Costa Grossetana earthquake (M4.4), epicentre 54 km away

  5. 1972NF25 October 1972

    Imperceptible: only instruments record it.

    Appennino settentrionale earthquake (M4.9), epicentre 171 km away

  6. 1970VI19 August 1970

    Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.

    Colline Metallifere earthquake (M4.7), epicentre 15 km away

  7. 1925IV21 March 1925

    Moderate: felt by many indoors; glasses and dishes rattle.

    Colline Metallifere earthquake (M4.3), epicentre 13 km away

  8. 1925III21 March 1925

    Light: felt by few people, like a passing truck.

    Colline Metallifere earthquake (M4.3), epicentre 13 km away · observed at Lago Boracifero

  9. 1909V25 August 1909

    Rather strong: felt by almost everyone; hanging objects swing.

    Crete Senesi earthquake (M5.3), epicentre 48 km away

  10. 1909IV-V25 August 1909

    Rather strong: felt by almost everyone; hanging objects swing.

    Crete Senesi earthquake (M5.3), epicentre 48 km away · observed at Frassine

  11. 1909NF13 January 1909

    Imperceptible: only instruments record it.

    Emilia Romagna orientale earthquake (M5.4), epicentre 177 km away

  12. 1873III12 March 1873

    Light: felt by few people, like a passing truck.

    Appennino marchigiano earthquake (M5.8), epicentre 198 km away · observed at Lagoni

…and 2 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.

18466.0
Colline Pisane earthquake
14 August 1846 · 44 km from here
XCompletely destructive: most buildings are destroyed.
14145.7
Colline Metallifere earthquake
7 August 1414 · 30 km from here
VII-VIIIRuinous: partial collapses in ordinary buildings, widespread heavy damage.
19095.3
Crete Senesi earthquake
25 August 1909 · 48 km from here
VII-VIIIRuinous: partial collapses in ordinary buildings, widespread heavy damage.
18715.2
Val di Cecina earthquake
29 July 1871 · 25 km from here
VII-VIIIRuinous: partial collapses in ordinary buildings, widespread heavy damage.

Source: Parametric Catalogue of Italian Earthquakes CPTI15 (INGV, CC BY 4.0).

The closest seismic structure

Livorno Hills

The town lies about 43 km from Livorno Hills, one of the seismic structures mapped by INGV geologists.

estimated maximum magnitude 6.2between 1 and 7 km deep

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

October 20266eventsmax 1.8
Jan '25
Apr
Jul
Oct
Jan '26
Apr
Jul
Oct

Earthquake map within 30 km

60 events
Magnitude:lightweakmoderatestrong

Latest earthquakes within 30 km

1.4
8 days ago
5 Oct 2026, 23:21
1.7
1 km North-West of Montieri
17 km East · 10 km
9 days ago
4 Oct 2026, 14:33
1.7
1 km North-West of Montieri
17 km East · 10 km
9 days ago
4 Oct 2026, 14:33
1.8
0 km South-West of Montieri
17 km East · 10 km
9 days ago
4 Oct 2026, 13:31
1.8
0 km South-West of Montieri
17 km East · 10 km
9 days ago
4 Oct 2026, 13:31
1.5
11 days ago
2 Oct 2026, 11:03
1.0
8 km South-West of Chiusdino
22 km East · 12 km
20 days ago
23 Sept 2026, 04:34
1.4
2 km West of Chiusdino
26 km East · 11 km
26 days ago
17 Sept 2026, 06:20
0.8
1 month ago
11 Sept 2026, 23:05
1.3
3 km South-West of Chiusdino
25 km East · 10 km
1 month ago
11 Sept 2026, 21:19

Nearby towns

How does it compare with the surroundings?

Monterotondo Marittimo sits in one of the most seismically active areas of its province: quakes are a familiar presence here, almost always light.

quietermore active
More epicentres than 96% of the 28 towns in the province.
Monterotondo Marittimo147
Nearby towns average119

Each quake is attributed to the town closest to its epicentre: the numbers describe the area, not the municipal territory alone.

Context

Province of Grosseto5 events · last 30 daysTuscany region67 events · last 30 days
ISTAT code: 053027

Frequently asked questions

Were there earthquakes near Monterotondo Marittimo today?

No, no quakes were recorded today within 30 km of Monterotondo Marittimo. The latest dates back to 5 October 2026.

Is Monterotondo Marittimo a seismic area?

Monterotondo Marittimo 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 Monterotondo Marittimo?

In the INGV catalogue since 2015, the strongest earthquake within 30 km of Monterotondo Marittimo was magnitude 3.7, on 1 May 2018.

When was the last quake near Monterotondo Marittimo?

The last quake recorded within 30 km of Monterotondo Marittimo dates back to 5 October 2026, magnitude 1.4.

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)