Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 30-01-2013 and time 02:00:08 (Italy) in region Confine Italia Svizzera (SVIZZERA)

A magnitude ML 1.1 earthquake occured in region: Confine Italia Svizzera (SVIZZERA), on

  • 30-01-2013 01:00:08 (UTC)
  • 30-01-2013 02:00:08 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 45.9390, 7.7640 at 11 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 13 2277 2277
Gressoney-La-Trinité AO 13 303 2580
Ayas AO 15 1401 3981
Chamois AO 16 97 4078
Macugnaga VB 16 557 4635
Alagna Valsesia VC 17 408 5043
La Magdeleine AO 18 109 5152
Gressoney-Saint-Jean AO 19 807 5959
Riva Valdobbia VC 19 258 6217
Antey-Saint-André AO 20 602 6819
Brusson AO 20 897 7716

Municipalities with at least 50000 inhabitants

An earthquake occurred to
83 Km W of Varese (80799 inhabitants)
86 Km W of Gallarate (53343 inhabitants)
86 Km NW of Novara (104380 inhabitants)
92 Km W of Busto Arsizio (83106 inhabitants)
96 Km N of Torino (890529 inhabitants)
97 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 1.1 2013-01-30
01:00:08		 45.9388 7.7642 11 2015-01-20
11:22:07		 Bollettino Sismico Italiano INGV 5403571
Reviewed
Rev100 		ML 1.1 2013-01-30
01:00:08		 45.9157 7.7403 3 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 2899631
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2013-01-30 01:00:08 ± 0.11
Latitude 45.9388 ± 0.0054
Longitude 7.7642 ± 0.0078
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 5403571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 563
Semi-minor axis of confidence ellipse (meter) 512
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 119
Circular confidence region, given by single value of horizontal uncertainty (meter) 560.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 111
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) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.09623
Epicentral distance of station farthest from the epicenter (degree) 0.86425
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 1
Type of magnitude ML
Reference to an origin 2899631
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2013-01-30 01:15:56

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 1
Type of magnitude ML
Reference to an origin 5403571
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2015-01-15 13:06:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.RSP.HHZ. 2013-01-30T01:00:36.69 0.1 undecidable manual S 204 95.9262 50 -0.22 86
GU.LSD.HHE. 2013-01-30T01:00:30.55 0.1 undecidable manual S 223 72.1722 50 -0.02 93
IV.MRGE.HHZ. 2013-01-30T01:00:26.64 0.1 undecidable manual S 251 57.498 50 -0.01 96
GU.RSP.HHZ. 2013-01-30T01:00:25.34 0.1 undecidable manual P 204 95.9262 50 0.31 84
GU.REMY.HHZ. 2013-01-30T01:00:24.30 0.1 undecidable manual S 257 48.2184 50 0.11 96
GU.TRAV.HHZ. 2013-01-30T01:00:23.70 0.1 undecidable manual S 182 47.3193 50 -0.23 94
GU.LSD.HHE. 2013-01-30T01:00:21.48 0.1 undecidable manual P 223 72.1722 50 0.1 92
CH.DIX.HHZ. 2013-01-30T01:00:19.30 0.1 undecidable manual S 300 31.5462 50 -0.44 92
IV.MRGE.HHZ. 2013-01-30T01:00:19.36 0.3 negative manual P 251 57.498 50 0.25 69
GU.TRAV.HHZ. 2013-01-30T01:00:17.77 0.1 undecidable manual P 182 47.3193 50 0.23 94
GU.REMY.HHZ. 2013-01-30T01:00:17.72 0.1 undecidable manual P 257 48.2184 50 0.03 97
CH.MMK.HHZ. 2013-01-30T01:00:16.42 0.1 undecidable manual S 51 19.7691 50 -0.17 100
CH.DIX.HHZ. 2013-01-30T01:00:15.08 0.1 undecidable manual P 300 31.5462 50 -0.04 100
CH.MMK.HHZ. 2013-01-30T01:00:13.64 0.1 undecidable manual P 51 19.7691 50 0.34 96
GU.SATI.HHE. 2013-01-30T01:00:13.66 0.1 undecidable manual S 131 10.6782 135 -0.44 95
GU.SATI.HHE. 2013-01-30T01:00:12.14 0.1 undecidable manual P 131 10.6782 135 0.28 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
CH.MMK.HHN. ML:1.3 0.00014050000000000003 0.24 AML other m 2013-01-30T01:00:16.17
CH.MMK.HHE. ML:1.0 0.0000707 1.34 AML other m 2013-01-30T01:00:18.12
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