M2.3 earthquake 11 km N of Formazza, Italy
A magnitude 2.3 earthquake struck 11 km N of Formazza, Italy on Wed, Oct 22, 2003, 9:31 PM GMT+2 (19:31 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M2.8 1 km S of Randogne, Switzerland. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.3 (ML, local (Richter)), micro
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2003-10-22 19:31:45 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 46.484° N, 8.419° E
- Region
- Italy
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
What happened
The USGS’s account of the effects of this earthquake.
no people dead or missing; no people injured; no buildings damaged or destroyed
From the USGS event page for usp000cb14. U.S. Geological Survey text and figures are in the public domain.
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Depth from
- OPERATOR_ASSIGNED
- Station coverage gap
- 252°, poorly surrounded by stations
- Stations used
- 6
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 4 in the 30 days before it.
After
- 2.76 km NW of Staffa, Italy · 8382 days ago · 3 km deep · 67 km away
- 2.02 km NNW of Ayent, Switzerland · 8376 days ago · 5 km deep · 81 km away
- 2.16 km WNW of Baceno, Italy · 8363 days ago · 10 km deep · 26 km away
- 1.80 km ENE of Randogne, Switzerland · 8357 days ago · 6 km deep · 72 km away
- 2.71 km S of Acquarossa, Switzerland · 8357 days ago · 10 km deep · 41 km away
- 2.13 km NW of Ayent, Switzerland · 8356 days ago · 2 km deep · 82 km away
- 2.81 km S of Randogne, Switzerland · 8356 days ago · 7 km deep · 73 km away
- 1.91 km S of Randogne, Switzerland · 8355 days ago · 7 km deep · 73 km away
Before
- 2.56 km NW of Boltigen, Switzerland · 8399 days ago · 2 km deep · 85 km away
- 3.55 km SSE of Krummenau, Switzerland · 8404 days ago · 13 km deep · 99 km away
- 2.75 km SSE of Krummenau, Switzerland · 8404 days ago · 13 km deep · 99 km away
- 2.46 km NNW of Savièse, Switzerland · 8411 days ago · 4 km deep · 88 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp000cb14. Read Sun, Oct 4, 2026, 4:01 PM UTC.