Province of Milano

Earthquakes today in Opera

Today, within 30 km: no earthquakes recorded (updated at 12:24). Latest: M1.6 on 16 October 2025 at 00:06, 3 km North-West of San Giuliano Milanese, 40 km deep.

1.6
very light

Latest earthquake within 30 km

3 km North-West of San Giuliano Milanese

1 year ago · 16 Oct 2025, 00:06
Depth 40 km

Seismic activity within 30 km

30 km radius
362
days since the last quake within 30 km
24
quakes recorded since 2015
~6 months
on average, one quake every
3.8
The strongest within 30 km
2 km North of Milano
5 years ago · 17 Dec 2020, 16:59

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

How seismic is Opera: 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 = 0.055 g (10% probability of exceedance in 50 years, rigid soil).

Closest earthquake
Go to San Giuliano Milanese Earthquake details
0
In the town
total on record
0
In the town
last 12 months
1
Within 30 km
last 12 months
M3.8
Strongest since 2015
Within 30 km

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

No epicentre attributed to Opera in the INGV catalogue since 2015 · 13,226 inhabitants

The great earthquakes in this area's history

Almost a thousand years of catalogues: the strongest documented events within ~50 km.

18025.6
Valle dell'Oglio earthquake
12 May 1802 · 50 km from here
VIII-IXDestructive: many buildings partly or fully collapse.
13965.3
Monza earthquake
26 November 1396 · 23 km from here
VII-VIIIRuinous: partial collapses in ordinary buildings, widespread heavy damage.
17865.2
Pianura lombarda earthquake
7 April 1786 · 30 km from here
VII-VIIIRuinous: partial collapses in ordinary buildings, widespread heavy damage.
19515.2
Lodigiano earthquake
15 May 1951 · 37 km from here
VI-VIIVery strong: hard to stand; chimneys and roof tiles fall, serious damage to weaker buildings.

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

The closest seismic structure

Western S-Alps external thrust shallow-west

The town lies about 12 km from Western S-Alps external thrust shallow-west, one of the seismic structures mapped by INGV geologists.

estimated maximum magnitude 6.2between 2 and 6 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 20251eventmax 1.6
Jan '25
Apr
Jul
Oct
Jan '26
Apr
Jul
Oct

Earthquake map within 30 km

24 events
Magnitude:lightweakmoderatestrong

Latest earthquakes within 30 km

1.6
1 year ago
16 Oct 2025, 00:06
1.8
2 km North-West of Comazzo
20 km East · 49 km
1 year ago
17 Mar 2025, 03:50
1.5
1 year ago
1 Jan 2025, 23:47
1.6
2 km North-West of Noviglio
12 km West · 35 km
2 years ago
10 Oct 2024, 22:21
2.2
3 km North-West of Siziano
5 km South · 42 km
2 years ago
7 Mar 2024, 02:25
3.0
2 km North-East of Pandino
28 km East · 38 km
2 years ago
25 Feb 2024, 11:32
1.7
2 km West of Vailate
30 km East · 43 km
4 years ago
23 May 2022, 19:45
2.2
4 years ago
22 Dec 2021, 06:17
3.0
2 km South-West of Carpiano
7 km South-East · 36 km
5 years ago
12 Oct 2021, 01:18
1.8
3 km North-West of Torre d'Isola
20 km South-West · 40 km
5 years ago
21 Feb 2021, 09:54

Nearby towns

How does it compare with the surroundings?

Opera is among the quietest towns of its province: very few epicentres are recorded here.

quietermore active
More epicentres than 0% of the 133 towns in the province.
Opera0
Nearby towns average0.6

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

Context

Province of Milano0 events · last 30 daysLombardy region14 events · last 30 days
ISTAT code: 015159

Frequently asked questions

Were there earthquakes near Opera today?

No, no quakes were recorded today within 30 km of Opera. The latest dates back to 16 October 2025.

Is Opera a seismic area?

Opera 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 Opera?

In the INGV catalogue since 2015, the strongest earthquake within 30 km of Opera was magnitude 3.8, on 17 December 2020.

When was the last quake near Opera?

The last quake recorded within 30 km of Opera dates back to 16 October 2025, magnitude 1.6.

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)