Earthquake with magnitude of ML 0.6 on date 19-03-2020 and time 18:21:36 (Italy) in region 3 km SW Valgrisenche (AO)

A magnitude ML 0.6 earthquake occured in region: 3 km SW Valgrisenche (AO), on

  • 19-03-2020 17:21:36 (UTC)
  • 19-03-2020 18:21:36 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 45.61, 7.03 at 11 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Valgrisenche AO 3 196 196
Rhêmes-Notre-Dame AO 8 89 285
Rhêmes-Saint-Georges AO 11 194 479
La Thuile AO 13 761 1240
Avise AO 14 305 1545
Valsavarenche AO 14 161 1706
Arvier AO 15 873 2579
Introd AO 15 658 3237
La Salle AO 15 2087 5324
Saint-Nicolas AO 16 311 5635
Morgex AO 16 2104 7739
Villeneuve AO 17 1289 9028
Pré-Saint-Didier AO 17 1050 10078
Saint-Pierre AO 19 3165 13243
Aymavilles AO 19 2086 15329

Municipalities with at least 50000 inhabitants

An earthquake occurred to
79 Km NW of Torino (890529 inhabitants)
85 Km NW of Moncalieri (57294 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 0.6 2020-03-19
17:21:36
45.61 7.03 11 2020-03-19
17:28:20
Sala Sismica INGV-Roma 77382861
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-19 17:21:36 ± 0.17
Latitude 45.61 ± 0.01
Longitude 7.03 ± 0.02
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 77382861

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1516
Semi-minor axis of confidence ellipse (meter) 231
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 252
Circular confidence region, given by single value of horizontal uncertainty (meter) 1520
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 182
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.15648
Epicentral distance of station farthest from the epicenter (degree) 0.5333
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 77382861
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-19 17:28:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
CH.DIX.HHE. 2020-03-19T17:21:54.50 0.6 undecidable manual S 29 0.5333 50 -0.33 44
GU.TRAV.HHZ. 2020-03-19T17:21:54.13 0.6 undecidable manual S 101 0.509 50 0.02 47
GU.RSP.HHZ. 2020-03-19T17:21:53.22 0.3 undecidable manual S 161 0.4928 50 -0.42 65
GU.CIRO.HHZ. 2020-03-19T17:21:49.81 0.3 undecidable manual S 92 0.3732 50 -0.28 69
GU.TRAV.HHZ. 2020-03-19T17:21:47.46 0.6 positive manual P 101 0.509 50 0.8 38
CH.DIX.HHE. 2020-03-19T17:21:47.62 0.1 undecidable manual P 29 0.5333 50 0.54 84
GU.RSP.HHZ. 2020-03-19T17:21:46.83 0.6 positive manual P 161 0.4928 50 0.43 43
GU.BLANC.HHE. 2020-03-19T17:21:45.70 0.3 undecidable manual S 343 0.2401 50 -0.46 68
GU.CIRO.HHZ. 2020-03-19T17:21:44.74 1.0 negative manual P 92 0.3732 50 0.39 22
GU.LSD.HHZ. 2020-03-19T17:21:43.53 0.3 undecidable manual S 156 0.17 120 -0.48 69
IV.MRGE.HHZ. 2020-03-19T17:21:43.14 0.6 undecidable manual S 7 0.1565 122 -0.43 46
GU.BLANC.HHE. 2020-03-19T17:21:42.17 0.1 undecidable manual P 343 0.2401 50 0.1 98
GU.LSD.HHZ. 2020-03-19T17:21:41.10 0.1 undecidable manual P 156 0.17 120 0.27 96
IV.MRGE.HHZ. 2020-03-19T17:21:40.66 0.1 negative manual P 7 0.1565 122 0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MRGE.HHN. ML:0.9 6.25E-5 0.32 AML other m 2020-03-19T17:21:43.78
IV.MRGE.HHE. ML:0.9 6.005E-5 1.92 AML other m 2020-03-19T17:21:43.96
GU.RSP.HHE. ML:0.9 1.765E-5 1.58 AML other m 2020-03-19T17:22:01.98
GU.RSP.HHN. ML:0.8 1.32E-5 1.58 AML other m 2020-03-19T17:22:07.96
GU.LSD.HHE. ML:0.4 2.1312675E-5 0.0768 AML other m 2020-03-19T17:21:43.72
GU.LSD.HHN. ML:0.4 1.7700568E-5 0.0768 AML other m 2020-03-19T17:21:43.72
GU.CIRO.HHE. ML:0.2 4.9904495E-6 0.0896 AML other m 2020-03-19T17:21:50.28
GU.CIRO.HHN. ML:0.5 8.356108E-6 0.128 AML other m 2020-03-19T17:21:49.96
GU.TRAV.HHE. ML:0.4 6.4968213E-6 0.3712 AML other m 2020-03-19T17:22:01.81
GU.TRAV.HHN. ML:0.4 7.1728915E-6 0.1024 AML other m 2020-03-19T17:21:55.56
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download