Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 30-10-2019 and time 13:18:41 (UTC) in region V3 Monte Bianco (ITALIA, FRANCIA, SVIZZERA)

A magnitude ML 1.9 earthquake occured in region: V3 Monte Bianco (ITALIA, FRANCIA, SVIZZERA), on

  • 30-10-2019 13:18:41 (UTC)
  • 30-10-2019 14:18:41 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 45.8710, 6.9740 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Courmayeur AO 9 2807 2807
Pré-Saint-Didier AO 12 1050 3857
Morgex AO 14 2104 5961
La Salle AO 16 2087 8048
Saint-Rhémy-en-Bosses AO 17 338 8386
La Thuile AO 17 761 9147
Saint-Oyen AO 19 203 9350

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 1.9 2019-10-30
13:18:41		 45.8708 6.9737 9 2020-02-28
16:42:19		 Bollettino Sismico Italiano INGV 75614751
Reviewed
Rev100 		ML 1.8 2019-10-30
13:18:41		 45.8628 6.9863 9 2019-10-30
13:29:44		 Sala Sismica INGV-Roma 73533901
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-30 13:18:41 ± 0.21
Latitude 45.8708 ± 0.0117
Longitude 6.9737 ± 0.0155
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 75614751

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1400
Semi-minor axis of confidence ellipse (meter) 1034
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 138
Circular confidence region, given by single value of horizontal uncertainty (meter) 1400.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 189
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.38
Epicentral distance of station closest to the epicenter (degree) 0.03777
Epicentral distance of station farthest from the epicenter (degree) 1.05490
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:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 17
Type of magnitude ML
Reference to an origin 75614751
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-01-17 15:36:37

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 15
Type of magnitude ML
Reference to an origin 73533901
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-30 13:29:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.BHB.HHZ. 2019-10-30T13:19:02.23 0.3 undecidable manual P 169 117.0939 50 0.76 50
GU.RRL.HHZ. 2019-10-30T13:19:00.17 0.6 undecidable manual P 188 106.3158 50 0.36 39
MN.BNI.HHE. 2019-10-30T13:18:58.01 0.6 undecidable manual P 194 93.7395 50 0.14 42
GU.LSD.HHZ. 2019-10-30T13:18:56.50 0.3 undecidable manual S 165 47.3193 50 -0.81 56
CH.MMK.HHE. 2019-10-30T13:18:56.26 0.6 undecidable manual P 75 78.9654 50 0.67 37
GU.RSP.HHZ. 2019-10-30T13:18:56.78 0.3 undecidable manual P 164 83.3499 50 0.51 59
GU.TRAV.HHZ. 2019-10-30T13:18:54.49 0.3 undecidable manual P 123 71.8725 50 -0.02 67
CH.DIX.HHZ. 2019-10-30T13:18:54.70 0.3 undecidable manual S 55 40.7259 50 -0.86 56
GU.CIRO.HHZ. 2019-10-30T13:18:51.76 0.3 undecidable manual P 123 54.9006 50 -0.12 68
GU.LSD.HHZ. 2019-10-30T13:18:50.59 0.3 undecidable manual P 165 47.3193 50 -0.13 69
CH.DIX.HHZ. 2019-10-30T13:18:49.70 0.3 undecidable manual P 55 40.7259 50 -0.01 71
GU.REMY.HHZ. 2019-10-30T13:18:47.80 0.3 undecidable manual S 104 14.5743 121 0.19 72
IV.MRGE.HHZ. 2019-10-30T13:18:46.80 0.3 undecidable manual S 149 13.0758 124 -0.37 70
IV.MRGE.HHZ. 2019-10-30T13:18:45.04 0.3 undecidable manual P 149 13.0758 124 0.18 72
GU.REMY.HHZ. 2019-10-30T13:18:45.53 0.3 undecidable manual P 104 14.5743 121 0.41 69
GU.BLANC.HHZ. 2019-10-30T13:18:44.50 0.3 undecidable manual S 226 4.1958 154 -0.57 67
GU.BLANC.HHZ. 2019-10-30T13:18:43.73 0.1 undecidable manual P 226 4.1958 154 0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.CIRO.HHN. ML:0.0 0.00013985655 0.1792 AML other m 2019-10-30T13:18:58.41
GU.CIRO.HHE. ML:0.0 0.000065717565 0.16 AML other m 2019-10-30T13:18:58.51
GU.BLANC.HHN. ML:0.0 0.011017614 0.1216 AML other m 2019-10-30T13:18:44.64
GU.BLANC.HHE. ML:0.0 0.01224122 0.2944 AML other m 2019-10-30T13:18:44.99
IV.MRGE.HHE. ML:2.4 0.002537715 0.1408 AML other m 2019-10-30T13:18:47.15
IV.MRGE.HHN. ML:2.6 0.005117597 0.1792 AML other m 2019-10-30T13:18:47.14
GU.REMY.HHN. ML:2.4 0.002436656 0.1792 AML other m 2019-10-30T13:18:47.94
GU.REMY.HHE. ML:2.1 0.0014183140000000002 0.1984 AML other m 2019-10-30T13:18:48.27
CH.DIX.HHE. ML:2.0 0.00038344735 0.256 AML other m 2019-10-30T13:18:55.34
CH.DIX.HHN. ML:2.0 0.00031281335 0.288 AML other m 2019-10-30T13:18:57.31
GU.LSD.HHN. ML:1.6 0.00010006148000000001 0.1984 AML other m 2019-10-30T13:18:58.00
GU.TRAV.HHE. ML:2.0 0.00014403745 0.3456 AML other m 2019-10-30T13:19:06.21
GU.TRAV.HHN. ML:2.0 0.00015830349999999997 0.3008 AML other m 2019-10-30T13:19:06.16
GU.RSP.HHE. ML:1.8 0.000083981365 0.2048 AML other m 2019-10-30T13:19:07.92
GU.RSP.HHN. ML:1.8 0.000091320515 0.1856 AML other m 2019-10-30T13:19:08.16
GU.RRL.HHE. ML:1.6 0.000040848060000000003 0.3392 AML other m 2019-10-30T13:19:15.07
GU.RRL.HHN. ML:1.8 0.000058192574999999994 0.7616 AML other m 2019-10-30T13:19:22.23
GU.BHB.HHE. ML:1.7 0.000032832134999999996 0.1984 AML other m 2019-10-30T13:19:19.26
GU.BHB.HHN. ML:1.8 0.00004755501 0.1792 AML other m 2019-10-30T13:19:18.10
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