Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 23-10-2013 and time 22:42:11 (Italy) in region Confine Italia Svizzera (SVIZZERA)

A magnitude ML 2.2 earthquake occured in region: Confine Italia Svizzera (SVIZZERA), on

  • 23-10-2013 20:42:11 (UTC)
  • 23-10-2013 22:42:11 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 46.1380, 7.1510 at 7 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

No Italian municipalities within 100 km from the epicenter with at least 50000 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 2.2 2013-10-23
20:42:11		 46.1377 7.151 7 2015-01-20
11:29:31		 Bollettino Sismico Italiano INGV 6758601
Reviewed
Rev100 		ML 2.0 2013-10-23
20:42:11		 46.1393 7.1523 7 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 4723331
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2013-10-23 20:42:11 ± 0.16
Latitude 46.1377 ± 0.0054
Longitude 7.1510 ± 0.0104
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 6758601

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 717
Semi-minor axis of confidence ellipse (meter) 497
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 108
Circular confidence region, given by single value of horizontal uncertainty (meter) 720.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 113
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.18706
Epicentral distance of station farthest from the epicenter (degree) 1.78156
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 6758601
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2015-01-15 13:09:17

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 4723331
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2013-10-23 20:51:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
CH.PLONS.HHZ. 2013-10-23T20:42:43.66 0.6 undecidable manual P 58 197.7576 38 0.73 26
MN.TUE.HHZ. 2013-10-23T20:42:40.14 0.6 undecidable manual P 77 172.3941 50 0.58 31
GU.TRAV.HHZ. 2013-10-23T20:42:36.35 0.6 undecidable manual S 146 83.25 50 -0.27 43
CH.MUGIO.HHZ. 2013-10-23T20:42:35.93 0.3 undecidable manual P 99 147.5412 50 0.19 57
GU.LSD.HHZ. 2013-10-23T20:42:34.16 0.6 undecidable manual S 181 75.2691 50 -0.33 43
CH.BNALP.HHZ. 2013-10-23T20:42:32.31 0.1 undecidable manual P 50 126.7731 50 -0.23 79
GU.CIRO.HHZ. 2013-10-23T20:42:32.72 0.6 undecidable manual S 151 67.5768 50 0.27 44
CH.FUSIO.HHZ. 2013-10-23T20:42:31.33 0.3 undecidable manual P 73 121.0899 50 -0.34 59
GU.TRAV.HHZ. 2013-10-23T20:42:25.82 0.6 undecidable manual P 146 83.25 50 -0.01 45
GU.LSD.HHZ. 2013-10-23T20:42:25.07 0.3 undecidable manual P 181 75.2691 50 0.47 63
CH.GIMEL.HHZ. 2013-10-23T20:42:25.29 0.3 undecidable manual P 303 80.7636 50 -0.16 66
IV.MRGE.HHZ. 2013-10-23T20:42:25.16 0.3 undecidable manual S 190 41.4252 50 -0.3 69
GU.CIRO.HHZ. 2013-10-23T20:42:23.96 0.6 undecidable manual P 151 67.5768 50 0.54 41
GU.REMY.HHZ. 2013-10-23T20:42:22.91 0.6 undecidable manual S 179 33.2445 102 0.01 50
IV.MRGE.HHZ. 2013-10-23T20:42:19.32 0.1 undecidable manual P 190 41.4252 50 -0.06 97
CH.DIX.HHZ. 2013-10-23T20:42:18.56 0.3 undecidable manual S 108 20.7681 109 -0.16 74
GU.REMY.HHZ. 2013-10-23T20:42:18.04 0.3 undecidable manual P 179 33.2445 102 0.13 73
CH.DIX.HHZ. 2013-10-23T20:42:15.41 0.1 undecidable manual P 108 20.7681 109 -0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.BHB.HHN. ML:2.2 0.00009045 0.5 AML other m 2013-10-23T20:42:56.53
GU.BHB.HHE. ML:2.2 0.0000793 0.7 AML other m 2013-10-23T20:43:01.23
CH.BNALP.HHE. ML:2.2 0.0001213 0.68 AML other m 2013-10-23T20:42:52.55
CH.BNALP.HHN. ML:2.3 0.0001285 0.7 AML other m 2013-10-23T20:42:55.26
GU.CIRO.HHN. ML:1.8 0.000103 0.38 AML other m 2013-10-23T20:42:33.96
GU.CIRO.HHE. ML:1.8 0.000125 1.18 AML other m 2013-10-23T20:42:35.81
CH.DAVOX.HHN. ML:2.3 0.00005085 0.5 AML other m 2013-10-23T20:42:53.04
CH.DAVOX.HHE. ML:2.4 0.00006104999999999999 0.66 AML other m 2013-10-23T20:42:51.64
CH.DIX.HHN. ML:2.0 0.000704 0.32 AML other m 2013-10-23T20:42:18.86
CH.DIX.HHE. ML:1.7 0.00035499999999999996 1.1 AML other m 2013-10-23T20:42:22.26
CH.FUSIO.HHN. ML:2.1 0.0000911 1.22 AML other m 2013-10-23T20:42:53.34
CH.FUSIO.HHE. ML:2.1 0.00008585000000000001 0.4 AML other m 2013-10-23T20:42:55.78
CH.GIMEL.HHN. ML:2.2 0.00019700000000000002 0.96 AML other m 2013-10-23T20:42:38.26
CH.GIMEL.HHE. ML:2.2 0.000242 0.34 AML other m 2013-10-23T20:42:41.54
GU.LSD.HHN. ML:2.0 0.00014250000000000002 0.32 AML other m 2013-10-23T20:42:36.82
GU.LSD.HHE. ML:2.0 0.00016549999999999998 0.7 AML other m 2013-10-23T20:42:37.11
CH.MMK.HHN. ML:1.8 0.00011989999999999999 1.6 AML other m 2013-10-23T20:42:32.93
CH.MMK.HHE. ML:1.6 0.0000839 0.88 AML other m 2013-10-23T20:42:33.47
IV.MONC.HHE. ML:2.4 0.00016849999999999998 1.58 AML other m 2013-10-23T20:43:01.53
IV.MONC.HHN. ML:2.4 0.0001535 1.1 AML other m 2013-10-23T20:43:02.99
IV.MRGE.HHN. ML:2.4 0.000798 0.28 AML other m 2013-10-23T20:42:25.34
IV.MRGE.HHE. ML:2.4 0.0008629999999999999 0.24 AML other m 2013-10-23T20:42:25.50
CH.MUGIO.HHN. ML:2.1 0.00006864999999999999 1.44 AML other m 2013-10-23T20:43:01.11
CH.MUGIO.HHE. ML:2.1 0.0000597 0.34 AML other m 2013-10-23T20:43:01.87
CH.PLONS.HHE. ML:2.4 0.0000753 0.4 AML other m 2013-10-23T20:42:45.84
CH.PLONS.HHN. ML:2.4 0.0000854 1.16 AML other m 2013-10-23T20:43:12.32
GU.PZZ.HHE. ML:2.6 0.00014099999999999998 1.02 AML other m 2013-10-23T20:43:12.77
GU.PZZ.HHN. ML:2.4 0.00009095 1.12 AML other m 2013-10-23T20:43:16.43
GU.REMY.HHE. ML:2.2 0.0006715 0.98 AML other m 2013-10-23T20:42:24.15
GU.REMY.HHN. ML:2.1 0.0006054999999999999 0.42 AML other m 2013-10-23T20:42:26.24
GU.RSP.HHN. ML:2.2 0.00014299999999999998 1.16 AML other m 2013-10-23T20:42:54.22
GU.RSP.HHE. ML:2.3 0.00016749999999999998 1.04 AML other m 2013-10-23T20:42:47.58
GU.TRAV.HHE. ML:2.1 0.0001615 0.38 AML other m 2013-10-23T20:42:40.30
GU.TRAV.HHN. ML:2.1 0.000182 0.22 AML other m 2013-10-23T20:42:41.65
MN.TUE.HHN. ML:2.4 0.00009325 1.58 AML other m 2013-10-23T20:43:06.63
MN.TUE.HHE. ML:2.2 0.00005895 0.38 AML other m 2013-10-23T20:43:06.36
TDMT - Time Domain Moment Tensor
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