Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.4 on date 02-02-2013 and time 07:16:57 (Italy) in region Confine Italia Svizzera (SVIZZERA)

A magnitude ML 2.4 earthquake occured in region: Confine Italia Svizzera (SVIZZERA), on

  • 02-02-2013 06:16:57 (UTC)
  • 02-02-2013 07:16:57 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 45.9320, 7.7410 at 10 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Valtournenche AO 11 2277 2277
Gressoney-La-Trinité AO 13 303 2580
Ayas AO 14 1401 3981
Chamois AO 14 97 4078
La Magdeleine AO 16 109 4187
Alagna Valsesia VC 18 408 4595
Antey-Saint-André AO 18 602 5197
Macugnaga VB 18 557 5754
Gressoney-Saint-Jean AO 19 807 6561
Brusson AO 19 897 7458
Torgnon AO 20 558 8016
Riva Valdobbia VC 20 258 8274

Municipalities with at least 50000 inhabitants

An earthquake occurred to
85 Km W of Varese (80799 inhabitants)
87 Km W of Gallarate (53343 inhabitants)
87 Km NW of Novara (104380 inhabitants)
93 Km W of Busto Arsizio (83106 inhabitants)
96 Km N of Torino (890529 inhabitants)
99 Km W of Legnano (60262 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 		ML 2.4 2013-02-02
06:16:57		 45.9325 7.7413 10 2015-01-20
11:22:40		 Bollettino Sismico Italiano INGV 3136591
Reviewed
Rev100 		ML 2.4 2013-02-02
06:16:57		 45.9222 7.7172 6 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 2910921
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2013-02-02 06:16:57 ± 0.17
Latitude 45.9325 ± 0.0108
Longitude 7.7413 ± 0.0155
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 3136591

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1250
Semi-minor axis of confidence ellipse (meter) 1090
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 319
Circular confidence region, given by single value of horizontal uncertainty (meter) 1250.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 83
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.54
Epicentral distance of station closest to the epicenter (degree) 0.10522
Epicentral distance of station farthest from the epicenter (degree) 1.04951
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 7
Type of magnitude ML
Reference to an origin 2910921
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2013-02-02 06:22:16

ML:2.4

Field Value
Value 2.4
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 3136591
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2015-01-15 12:55:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
CH.BNALP.HHZ. 2013-02-02T06:17:18.74 0.3 undecidable manual P 26 116.4945 50 1.26 42
CH.MUGIO.HHZ. 2013-02-02T06:17:15.91 0.6 undecidable manual P 90 100.3218 50 0.92 34
CH.FUSIO.HHZ. 2013-02-02T06:17:14.47 0.6 undecidable manual P 50 91.4418 50 0.84 36
GU.RSP.HHZ. 2013-02-02T06:17:14.69 0.6 undecidable manual P 203 94.5387 50 0.59 39
GU.TRAV.HHZ. 2013-02-02T06:17:12.64 0.6 undecidable manual S 179 46.62 50 -0.46 45
GU.LSD.HHZ. 2013-02-02T06:17:10.75 0.6 undecidable manual P 222 70.4739 50 0.36 44
GU.CIRO.HHZ. 2013-02-02T06:17:10.40 0.1 undecidable manual S 200 39.0276 50 -0.69 84
IV.MRGE.HHZ. 2013-02-02T06:17:08.30 0.1 undecidable manual P 251 55.5999 50 0.21 93
CH.DIX.HHZ. 2013-02-02T06:17:07.90 0.1 undecidable manual S 303 30.4473 50 -0.9 78
GU.TRAV.HHZ. 2013-02-02T06:17:07.04 0.1 undecidable manual P 179 46.62 50 0.33 93
CH.MMK.HHZ. 2013-02-02T06:17:05.16 0.1 undecidable manual S 53 21.5673 115 -1.06 73
GU.CIRO.HHZ. 2013-02-02T06:17:05.72 0.1 positive manual P 200 39.0276 50 0.17 97
CH.DIX.HHZ. 2013-02-02T06:17:04.33 0.1 undecidable manual P 303 30.4473 50 0.11 100
GU.SATI.HHZ. 2013-02-02T06:17:02.70 0.1 undecidable manual S 123 11.6772 130 -0.61 91
CH.MMK.HHZ. 2013-02-02T06:17:02.91 0.1 undecidable manual P 53 21.5673 115 0.17 100
GU.SATI.HHZ. 2013-02-02T06:17:01.40 0.1 undecidable manual P 123 11.6772 130 0.35 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.BHB.HHE. ML:2.2 0.00010240000000000001 1.52 AML other m 2013-02-02T06:17:36.49
GU.BHB.HHN. ML:2.2 0.00011999999999999999 1.56 AML other m 2013-02-02T06:17:37.90
CH.BNALP.HHN. ML:2.4 0.0002065 0.22 AML other m 2013-02-02T06:17:40.50
CH.BNALP.HHE. ML:2.5 0.000261 0.66 AML other m 2013-02-02T06:17:40.38
MN.BNI.HHE. ML:2.1 0.0000887 0.26 AML other m 2013-02-02T06:17:37.82
MN.BNI.HHN. ML:2.3 0.000134 0.84 AML other m 2013-02-02T06:17:37.81
GU.CIRO.HHE. ML:2.5 0.0010750000000000002 0.2 AML other m 2013-02-02T06:17:10.51
GU.CIRO.HHN. ML:2.2 0.0006005 0.78 AML other m 2013-02-02T06:17:10.61
CH.DIX.HHN. ML:2.8 0.003225 0.32 AML other m 2013-02-02T06:17:08.02
CH.DIX.HHE. ML:2.7 0.0023599999999999997 1.3 AML other m 2013-02-02T06:17:08.02
CH.FUSIO.HHN. ML:2.2 0.0001715 0.36 AML other m 2013-02-02T06:17:27.69
CH.FUSIO.HHE. ML:2.2 0.00016299999999999998 0.46 AML other m 2013-02-02T06:17:29.39
GU.LSD.HHE. ML:2.6 0.000607 0.14 AML other m 2013-02-02T06:17:20.34
GU.LSD.HHN. ML:2.3 0.0003045 0.36 AML other m 2013-02-02T06:17:20.51
CH.MMK.HHN. ML:2.4 0.0018199999999999998 0.26 AML other m 2013-02-02T06:17:05.29
CH.MMK.HHE. ML:2.2 0.001036 0.64 AML other m 2013-02-02T06:17:07.28
IV.MRGE.HHN. ML:2.2 0.000343 0.66 AML other m 2013-02-02T06:17:16.61
IV.MRGE.HHE. ML:2.2 0.00033999999999999997 0.96 AML other m 2013-02-02T06:17:17.86
CH.MUGIO.HHE. ML:2.2 0.000174 1.26 AML other m 2013-02-02T06:17:28.75
CH.MUGIO.HHN. ML:2.2 0.000163 0.46 AML other m 2013-02-02T06:17:29.52
GU.RRL.HHN. ML:2.5 0.00019800000000000002 0.68 AML other m 2013-02-02T06:17:38.99
GU.RRL.HHE. ML:2.4 0.0001574 1.52 AML other m 2013-02-02T06:17:43.73
GU.RSP.HHE. ML:2.7 0.0005679999999999999 1.36 AML other m 2013-02-02T06:17:27.07
GU.RSP.HHN. ML:2.6 0.00040800000000000005 1.2 AML other m 2013-02-02T06:17:29.14
GU.SATI.HHN. ML:3.1 0.013099999999999999 0.46 AML other m 2013-02-02T06:17:03.07
GU.SATI.HHE. ML:3.1 0.013349999999999999 0.46 AML other m 2013-02-02T06:17:03.09
GU.TRAV.HHE. ML:2.4 0.000746 0.48 AML other m 2013-02-02T06:17:13.56
GU.TRAV.HHN. ML:2.4 0.0006670000000000001 1.34 AML other m 2013-02-02T06:17:19.45
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
Waveforms Seismic signals in miniseed + resp format Download