Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 21-02-2019 and time 18:24:03 (UTC) in region 8 km W Saint Rhémy en Bosses (AO)

A magnitude ML 2.1 earthquake occured in region: 8 km W Saint Rhémy en Bosses (AO), on

  • 21-02-2019 18:24:03 (UTC)
  • 21-02-2019 19:24:03 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 45.8570, 7.0960 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
Saint-Rhémy-en-Bosses AO 8 338 338
Saint-Oyen AO 10 203 541
Etroubles AO 12 501 1042
Courmayeur AO 12 2807 3849
Morgex AO 12 2104 5953
La Salle AO 12 2087 8040
Pré-Saint-Didier AO 13 1050 9090
Allein AO 15 229 9319
Saint-Nicolas AO 17 311 9630
Avise AO 17 305 9935
Ollomont AO 17 157 10092
Doues AO 17 510 10602
Arvier AO 18 873 11475
Gignod AO 18 1710 13185
Valpelline AO 18 657 13842
Roisan AO 19 1036 14878
Saint-Pierre AO 19 3165 18043
Villeneuve AO 19 1289 19332
La Thuile AO 19 761 20093
Introd AO 20 658 20751
Sarre AO 20 4927 25678

Municipalities with at least 50000 inhabitants

An earthquake occurred to
98 Km NW of Torino (890529 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 2.1 2019-02-21
18:24:03		 45.857 7.0957 10 2019-08-22
08:24:53		 Bollettino Sismico Italiano INGV 66555221
Reviewed
Rev100 		ML 2.1 2019-02-21
18:24:03		 45.8605 7.0928 10 2019-02-21
18:35:44		 Sala Sismica INGV-Roma 65769181
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-02-21 18:24:03 ± 0.13
Latitude 45.8570 ± 0.0063
Longitude 7.0957 ± 0.0116
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 66555221

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 894
Semi-minor axis of confidence ellipse (meter) 663
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 283
Circular confidence region, given by single value of horizontal uncertainty (meter) 890.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 120
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.34898
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 66555221
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-03-15 13:26:49

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 22
Type of magnitude ML
Reference to an origin 65769181
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-02-21 18:35:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.BLLA.EHZ. 2019-02-21T18:26:03.13 3.0 undecidable manual Sn 5.04 0
IT.VNF1.HGZ. 2019-02-21T18:25:45.06 3.0 negative manual Pn 3.19 0
IV.NDIM.HNZ. 2019-02-21T18:25:41.35 3.0 undecidable manual Sg 15.77 0
IV.OPPE.HHZ. 2019-02-21T18:25:02.86 3.0 negative manual Pg 12.58 0
SI.BOSI.HHZ. 2019-02-21T18:24:58.84 3.0 positive manual Pn 7.31 0
IV.SARZ.HHZ. 2019-02-21T18:24:55.38 3.0 undecidable manual Sn 0 0
GU.RNCA.HHZ. 2019-02-21T18:24:38.41 3.0 negative manual Pn 2.09 0
CH.BNALP.HHZ. 2019-02-21T18:24:31.49 3.0 positive manual P 2.39 0
GU.PZZ.HHZ. 2019-02-21T18:24:28.90 0.1 undecidable manual P 179 149.739 50 0.51 72
GU.RSP.HHZ. 2019-02-21T18:24:27.51 0.3 undecidable manual S 170 79.7646 50 -0.22 67
GU.TRAV.HHZ. 2019-02-21T18:24:23.17 0.6 undecidable manual S 127 63.2922 50 -0.17 46
GU.BHB.HHZ. 2019-02-21T18:24:23.32 0.1 undecidable manual P 173 114.0969 50 0.44 79
GU.SATI.HHZ. 2019-02-21T18:24:22.22 0.6 undecidable manual S 88 59.6958 50 -0.17 47
IV.MONC.HHZ. 2019-02-21T18:24:21.75 0.1 undecidable manual P 143 108.3138 50 -0.24 84
CH.GIMEL.HHZ. 2019-02-21T18:24:20.68 0.1 negative manual P 320 98.5236 50 0.2 86
MN.BNI.HHZ. 2019-02-21T18:24:19.69 0.3 undecidable manual P 200 95.0382 50 -0.26 64
GU.CIRO.HHZ. 2019-02-21T18:24:18.79 0.3 undecidable manual S 128 46.2204 50 0 74
GU.RSP.HHZ. 2019-02-21T18:24:17.74 0.3 positive manual P 170 79.7646 50 0.15 68
CH.DIX.HHZ. 2019-02-21T18:24:15.30 0.3 undecidable manual S 44 34.5432 50 -0.37 70
GU.TRAV.HHZ. 2019-02-21T18:24:15.53 1.0 positive manual P 127 63.2922 50 0.47 22
GU.SATI.HHZ. 2019-02-21T18:24:14.42 0.6 positive manual P 88 59.6958 50 -0.09 48
GU.CIRO.HHZ. 2019-02-21T18:24:12.78 0.3 undecidable manual P 128 46.2204 50 0.35 69
CH.DIX.HHZ. 2019-02-21T18:24:10.49 0.3 undecidable manual P 44 34.5432 50 -0.13 74
GU.REMY.HHZ. 2019-02-21T18:24:08.10 0.3 undecidable manual S 114 5.1948 153 0.49 72
IV.MRGE.HHZ. 2019-02-21T18:24:08.12 0.3 undecidable manual S 196 10.0788 135 -0.51 71
IV.MRGE.HHZ. 2019-02-21T18:24:06.30 0.1 undecidable manual P 196 10.0788 135 -0.26 100
GU.REMY.HHZ. 2019-02-21T18:24:06.45 3.0 undecidable manual P 114 5.1948 153 0.48 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MRGE.HHE. ML:2.4 0.0032967620000000004 0.064 AML other m 2019-02-21T18:24:08.22
IV.MRGE.HHN. ML:2.6 0.0053160920000000006 0.064 AML other m 2019-02-21T18:24:08.20
CH.DIX.HHE. ML:2.6 0.001547514 0.1408 AML other m 2019-02-21T18:24:15.77
CH.DIX.HHN. ML:2.3 0.0008792520500000001 0.1408 AML other m 2019-02-21T18:24:16.41
GU.CIRO.HHN. ML:1.8 0.00019261915000000002 0.1024 AML other m 2019-02-21T18:24:18.94
GU.CIRO.HHE. ML:1.7 0.00015783255000000003 0.0896 AML other m 2019-02-21T18:24:19.75
GU.SATI.HHN. ML:1.7 0.00010453117 0.1536 AML other m 2019-02-21T18:24:23.31
GU.SATI.HHE. ML:1.8 0.00011613815 0.128 AML other m 2019-02-21T18:24:23.48
GU.TRAV.HHN. ML:2.2 0.0003310661 1.7568 AML other m 2019-02-21T18:24:24.07
GU.TRAV.HHE. ML:2.1 0.0002278916 0.1152 AML other m 2019-02-21T18:24:24.35
GU.RSP.HNE. ML:2.1 0.00017408774999999997 0.1792 AML other m 2019-02-21T18:24:27.88
GU.RSP.HHE. ML:2.1 0.0001894526 0.1152 AML other m 2019-02-21T18:24:28.92
GU.RSP.HHN. ML:2.2 0.00020189604999999998 0.1408 AML other m 2019-02-21T18:24:30.30
GU.RSP.HNN. ML:2.1 0.00018664069999999998 0.1536 AML other m 2019-02-21T18:24:30.31
GU.BHB.HHN. ML:2.1 0.000104726975 0.1664 AML other m 2019-02-21T18:24:38.57
GU.BHB.HHE. ML:2.0 0.00008174222 0.1792 AML other m 2019-02-21T18:24:38.85
GU.PZZ.HHN. ML:2.2 0.00008810522 0.2304 AML other m 2019-02-21T18:24:50.87
GU.PZZ.HHE. ML:2.4 0.0001201501 1.6416 AML other m 2019-02-21T18:24:51.13
CH.BNALP.HHN. ML:2.0 0.0000540732 0.3584 AML other m 2019-02-21T18:24:52.22
CH.BNALP.HHE. ML:2.1 0.000058049180000000005 0.256 AML other m 2019-02-21T18:24:53.71
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