Earthquake with magnitude of Md 2.5 on date 25-01-2002 and time 08:11:35 (Italy) in region 4 km SE Valdisotto (SO)

A magnitude Md 2.5 earthquake occured in region: 4 km SE Valdisotto (SO), on

  • 25-01-2002 07:11:35 (UTC)
  • 25-01-2002 08:11:35 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.4060, 10.3870 at 3 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Valdisotto SO 4 3556 3556
Valfurva SO 7 2638 6194
Bormio SO 7 4121 10315
Sondalo SO 9 4136 14451
Valdidentro SO 12 4125 18576
Grosio SO 15 4443 23019
Grosotto SO 17 1622 24641
Vione BS 18 691 25332
Vezza d'Oglio BS 18 1457 26789
Temù BS 19 1105 27894
Ponte di Legno BS 19 1729 29623
Mazzo di Valtellina SO 19 1022 30645

Municipalities with at least 50000 inhabitants

An earthquake occurred to
68 Km NW of Trento (117317 inhabitants)
75 Km W of Bolzano (106441 inhabitants)
97 Km NE of Bergamo (119381 inhabitants)
97 Km N of Brescia (196480 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
Md 2.5 2002-01-25
07:11:35
46.406 10.387 3 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 435269
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2002-01-25 07:11:35 ± 0.293
Latitude 46.4060 ± 0.0185
Longitude 10.3870 ± 0.0127
Depth (km) 3 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 435269

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 2275.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 133
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00057
Epicentral distance of station farthest from the epicenter (degree) 0.01837
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 435269
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 23:51:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.PTCC.Z. 2002-01-25T07:12:35.70 10.0 undecidable manual SN 88 2.0424 -0.82 0.1
--.FVI.Z. 2002-01-25T07:12:27.50 10.0 undecidable manual SN 82 1.6539 -0.27 0.5
--.VAI.Z. 2002-01-25T07:12:17.10 10.0 undecidable manual SN 244 1.2432 -0.44 0.4
--.PTCC.Z. 2002-01-25T07:12:10.87 10.0 undecidable manual PN 88 2.0424 0.08 1.4
--.CTI.Z. 2002-01-25T07:12:08.98 10.0 undecidable manual SG 111 0.9324 -0.13 0.8
--.FVI.Z. 2002-01-25T07:12:05.98 10.0 negative manual PN 82 1.6539 0.5 1.3
--.VAI.Z. 2002-01-25T07:11:59.92 10.0 undecidable manual PN 244 1.2432 0.14 1.8
--.CTI.Z. 2002-01-25T07:11:54.65 10.0 undecidable manual PG 111 0.9324 -0.31 1.4
--.BRMO.Z. 2002-01-25T07:11:38.65 10.0 undecidable manual SG 352 0.0666 0.07 0.8
--.BRMO.Z. 2002-01-25T07:11:37.50 10.0 undecidable manual PG 352 0.0666 -0.29 1.5
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download