Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 15-12-2014 and time 00:42:40 (Italy) in region V3 Monte Bianco (ITALIA, FRANCIA, SVIZZERA)

A magnitude ML 1.7 earthquake occured in region: V3 Monte Bianco (ITALIA, FRANCIA, SVIZZERA), on

  • 14-12-2014 23:42:40 (UTC)
  • 15-12-2014 00:42:40 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 45.9880, 6.9780 at 9 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 1.7 2014-12-14
23:42:40		 45.9875 6.9778 9 2015-09-21
09:40:11		 Bollettino Sismico Italiano INGV 16990091
Reviewed
Rev100 		ML 1.6 2014-12-14
23:42:41		 45.9632 7.0102 10 2014-12-14
23:50:34		 Sala Sismica INGV-Roma 14672461
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2014-12-14 23:42:40 ± 0.27
Latitude 45.9875 ± 0.0099
Longitude 6.9778 ± 0.0168
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 16990091

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1550
Semi-minor axis of confidence ellipse (meter) 507
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 126
Circular confidence region, given by single value of horizontal uncertainty (meter) 1550.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 235
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) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.22483
Epicentral distance of station farthest from the epicenter (degree) 1.48298
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:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 16990091
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-02-12 10:04:29

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 14672461
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2014-12-14 23:50:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.RSP.HHZ. 2014-12-14T23:43:09.45 0.6 undecidable manual S 166 95.7264 50 0.64 38
GU.PZZ.HHZ. 2014-12-14T23:43:07.93 0.3 undecidable manual P 176 164.613 50 0.53 50
GU.TRAV.HHZ. 2014-12-14T23:43:04.24 1.0 undecidable manual S 131 79.4649 50 -0.23 22
CH.MMK.HHE. 2014-12-14T23:43:03.28 0.6 undecidable manual S 84 76.2681 50 -0.34 44
CH.FUSIO.HHZ. 2014-12-14T23:43:03.91 1.0 undecidable manual P 68 139.3605 50 0.4 19
GU.SATI.HHZ. 2014-12-14T23:43:02.11 0.6 undecidable manual S 100 69.8745 50 0.21 45
MN.BNI.HHE. 2014-12-14T23:42:58.11 0.1 undecidable manual P 193 106.4157 50 -0.32 83
GU.LSD.HHZ. 2014-12-14T23:42:58.59 0.6 undecidable manual S 168 59.7957 50 -0.63 41
GU.RSP.HHZ. 2014-12-14T23:42:56.88 0.3 undecidable manual P 166 95.7264 50 0.09 66
GU.TRAV.HHZ. 2014-12-14T23:42:54.63 0.1 undecidable manual P 131 79.4649 50 0.35 86
CH.MMK.HHE. 2014-12-14T23:42:54.12 0.3 undecidable manual P 84 76.2681 50 0.33 66
CH.DIX.HHZ. 2014-12-14T23:42:52.21 0.3 undecidable manual S 73 34.743 50 -0.31 71
GU.SATI.HHZ. 2014-12-14T23:42:52.80 0.6 undecidable manual P 100 69.8745 50 0 47
GU.CIRO.HHZ. 2014-12-14T23:42:51.78 0.3 negative manual P 133 62.5929 50 0.1 70
GU.LSD.HHZ. 2014-12-14T23:42:51.05 0.1 negative manual P 168 59.7957 50 -0.21 93
IV.MRGE.HHZ. 2014-12-14T23:42:49.57 0.6 undecidable manual S 165 24.9528 110 -0.03 51
CH.DIX.HHZ. 2014-12-14T23:42:47.28 0.3 positive manual P 73 34.743 50 -0.1 74
IV.MRGE.HHZ. 2014-12-14T23:42:45.56 0.1 negative manual P 165 24.9528 110 -0.14 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.CIRO.HHE. ML:1.2 0.000032850000000000006 1.58 AML other m 2014-12-14T23:43:15.67
GU.CIRO.HHN. ML:1.2 0.000027774999999999997 1.58 AML other m 2014-12-14T23:43:25.20
CH.DIX.HHE. ML:1.6 0.000145 0.14 AML other m 2014-12-14T23:42:52.64
CH.DIX.HHN. ML:2.1 0.0005495 0.18 AML other m 2014-12-14T23:42:52.70
GU.LSD.HHE. ML:1.9 0.0001615 0.32 AML other m 2014-12-14T23:42:58.86
GU.LSD.HHN. ML:1.6 0.0000842 0.16 AML other m 2014-12-14T23:42:59.97
IV.MRGE.HHE. ML:1.8 0.0004 0.3 AML other m 2014-12-14T23:42:49.84
IV.MRGE.HHN. ML:1.8 0.0003465 0.26 AML other m 2014-12-14T23:42:49.89
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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