Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 3.1 on date 10-03-2003 and time 13:25:06 (UTC) in region 4 km SE Villastellone (TO)

A magnitude Md 3.1 earthquake occured in region: 4 km SE Villastellone (TO), on

  • 10-03-2003 13:25:06 (UTC)
  • 10-03-2003 14:25:06 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.8990, 7.7910 at 13 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Villastellone TO 4 4779 4779
Poirino TO 5 10553 15332
Santena TO 6 10830 26162
Carmagnola TO 8 29079 55241
Cambiano TO 8 6107 61348
Carignano TO 9 9261 70609
Isolabella TO 9 396 71005
Pralormo TO 10 1957 72962
Trofarello TO 11 11010 83972
Ceresole Alba CN 11 2090 86062
Riva presso Chieri TO 12 4610 90672
La Loggia TO 12 8874 99546
Villanova d'Asti AT 13 5745 105291
Cellarengo AT 13 720 106011
Chieri TO 13 36595 142606
Vinovo TO 14 14887 157493
Caramagna Piemonte CN 14 3034 160527
Lombriasco TO 14 1050 161577
Valfenera AT 14 2462 164039
Pecetto Torinese TO 14 3995 168034
Moncalieri TO 14 57294 225328
Sommariva del Bosco CN 14 6361 231689
Piobesi Torinese TO 15 3763 235452
Dusino San Michele AT 15 1022 236474
Osasio TO 15 936 237410
San Paolo Solbrito AT 16 1208 238618
Nichelino TO 16 48123 286741
Casalgrasso CN 16 1480 288221
Pino Torinese TO 16 8379 296600
Ferrere AT 16 1608 298208
Sanfrè CN 16 3040 301248
Candiolo TO 16 5669 306917
Montà CN 16 4733 311650
Andezeno TO 17 1984 313634
Racconigi CN 17 10038 323672
Santo Stefano Roero CN 17 1390 325062
Monteu Roero CN 17 1634 326696
Pancalieri TO 18 2038 328734
Castagnole Piemonte TO 18 2245 330979
Virle Piemonte TO 18 1206 332185
Montaldo Roero CN 18 844 333029
Baldissero d'Alba CN 18 1069 334098
Arignano TO 19 1078 335176
Polonghera CN 19 1160 336336
Buttigliera d'Asti AT 19 2626 338962
Cisterna d'Asti AT 19 1245 340207
Cantarana AT 19 982 341189
Marentino TO 19 1351 342540
Baldissero Torinese TO 19 3750 346290
Villafranca d'Asti AT 19 3094 349384
Pavarolo TO 19 1102 350486
Montaldo Torinese TO 19 743 351229
Mombello di Torino TO 19 415 351644
Faule CN 19 486 352130
Canale CN 19 5686 357816
Sommariva Perno CN 20 2797 360613
Roatto AT 20 400 361013
Moriondo Torinese TO 20 823 361836
Maretto AT 20 375 362211
None TO 20 8005 370216

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km SE of Moncalieri (57294 inhabitants)
21 Km SE of Torino (890529 inhabitants)
33 Km W of Asti (76202 inhabitants)
59 Km NE of Cuneo (56081 inhabitants)
65 Km W of Alessandria (93943 inhabitants)
86 Km NW of Savona (61345 inhabitants)
89 Km SW of Novara (104380 inhabitants)
96 Km W of Vigevano (63310 inhabitants)
Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		Md 3.1
ML-VAX 2.7 		2003-03-10
13:25:06		 44.899 7.791 13 2013-07-15
08:40:51		 Bollettino Sismico Italiano INGV 471349
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2003-03-10 13:25:06 ± 0.299
Latitude 44.8990 ± 0.0155
Longitude 7.7910 ± 0.0306
Depth (km) 13 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 471349

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) 2965.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 85
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00494
Epicentral distance of station farthest from the epicenter (degree) 0.03748
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitudes information

Md:3.1

Field Value
Value 3.1
Uncertainty
Num. used stations 11
Type of magnitude Md
Reference to an origin 471349
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 00:27:02

ML:2.7

Field Value
Value 2.7
Uncertainty
Num. used stations 12
Type of magnitude ML
Reference to an origin 471349
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.CRE.Z. 2003-03-10T13:26:32.31 10.0 undecidable manual SN 111 3.2301 -0.73 0.3
--.BRMO.Z. 2003-03-10T13:26:13.60 10.0 undecidable manual SN 47 2.3865 0.14 0.6
--.PTCC.Z. 2003-03-10T13:26:08.30 10.0 undecidable manual PN 66 4.1625 -0.97 0.5
--.CRE.Z. 2003-03-10T13:25:56.54 10.0 undecidable manual PN 111 3.2301 0.25 1.2
--.SFI.Z. 2003-03-10T13:25:54.48 10.0 undecidable manual PN 107 3.0525 0.63 1
--.PGD.Z. 2003-03-10T13:25:52.88 10.0 undecidable manual PN 108 2.9859 0.06 1.4
--.BOB.Z. 2003-03-10T13:25:45.56 10.0 undecidable manual SN 95 1.1766 1.46 0.1
--.BRMO.Z. 2003-03-10T13:25:45.95 10.0 undecidable manual PN 47 2.3865 1.27 0.4
--.VAI.Z. 2003-03-10T13:25:43.20 10.0 undecidable manual SN 34 1.1766 -1 0.3
--.PII.Z. 2003-03-10T13:25:43.86 10.0 undecidable manual PN 119 2.2755 0.73 1
--.BDI.Z. 2003-03-10T13:25:41.68 10.0 undecidable manual PN 111 2.1645 0.1 1.7
--.MCGN.Z. 2003-03-10T13:25:39.79 10.0 undecidable manual SN 6 1.0656 -1.55 0.1
--.BNI.Z. 2003-03-10T13:25:33.74 10.0 undecidable manual SG 280 0.7992 0.03 0.8
--.FIN.Z. 2003-03-10T13:25:30.82 10.0 undecidable manual SG 156 0.7437 -1.37 0.1
--.ORO.Z. 2003-03-10T13:25:30.41 10.0 undecidable manual SG 9 0.7326 -1.34 0.2
--.BOB.Z. 2003-03-10T13:25:28.10 10.0 undecidable manual PN 95 1.1766 0.07 1.9
--.VAI.Z. 2003-03-10T13:25:28.35 10.0 undecidable manual PN 34 1.1766 0.26 1.8
--.MCGN.Z. 2003-03-10T13:25:25.89 10.0 undecidable manual PN 6 1.0656 -0.55 1.5
--.DOI.Z. 2003-03-10T13:25:24.22 10.0 undecidable manual SG 224 0.5439 -1.58 0.1
--.IMI.Z. 2003-03-10T13:25:24.62 10.0 undecidable manual PN 175 0.9879 -0.79 1.1
--.BNI.Z. 2003-03-10T13:25:23.90 10.0 undecidable manual PG 280 0.7992 1.05 0.7
--.ORO.Z. 2003-03-10T13:25:21.30 10.0 undecidable manual PG 9 0.7326 0.13 1.9
--.FIN.Z. 2003-03-10T13:25:20.75 10.0 undecidable manual PG 156 0.7437 -0.41 1.7
--.DOI.Z. 2003-03-10T13:25:17.77 10.0 positive manual PG 224 0.5439 0.3 3.6
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, /tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols scales with the calculated moment magnitude Mw.
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download