Earthquake with magnitude of ML 1.9 on date 31-05-2020 and time 18:38:53 (Italy) in region Confine Italia Francia (FRANCIA)

A magnitude ML 1.9 earthquake occured in region: Confine Italia Francia (FRANCIA), on

  • 31-05-2020 16:38:53 (UTC)
  • 31-05-2020 18:38:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.83, 6.59 at 8 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
Claviere TO 18 214 214

Municipalities with at least 50000 inhabitants

An earthquake occurred to
89 Km W of Moncalieri (57294 inhabitants)
90 Km W of Torino (890529 inhabitants)
91 Km NW of Cuneo (56081 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 1.9 2020-05-31
16:38:53
44.83 6.59 8 2020-05-31
16:48:21
Sala Sismica INGV-Roma 79756511
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-31 16:38:53 ± 0.22
Latitude 44.83 ± 0.01
Longitude 6.59 ± 0.01
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 79756511

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 933
Semi-minor axis of confidence ellipse (meter) 818
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 288
Circular confidence region, given by single value of horizontal uncertainty (meter) 930
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 139
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.44
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 1.42003
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 15
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 27
Type of magnitude ML
Reference to an origin 79756511
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-05-31 16:48:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CERA.HHZ. 2020-05-31T16:40:50.43 3.0 undecidable manual Pg 24.43 0
IV.MSAG.HHZ. 2020-05-31T16:40:43.83 3.0 undecidable manual Pn 1.66 0
IV.ROSPO.HHZ. 2020-05-31T16:40:37.76 3.0 undecidable manual Pn 7.84 0
IV.RM33.HNZ. 2020-05-31T16:40:30.56 3.0 undecidable manual Pg 18.01 0
CH.FUORN.HHZ. 2020-05-31T16:40:23.53 3.0 undecidable manual Sn 1.77 0
IV.ZONE.HHZ. 2020-05-31T16:40:22.84 3.0 undecidable manual Sg 12.9 0
IV.SFI.EHZ. 2020-05-31T16:40:03.00 3.0 undecidable manual Pg 10.36 0
IT.FIE.HGZ. 2020-05-31T16:39:58.58 3.0 negative manual Pg 10.83 0
IV.RIBO.EHZ.01 2020-05-31T16:39:57.01 3.0 negative manual Pn 6.6 0
GU.GRAM.HHZ. 2020-05-31T16:39:34.43 3.0 positive manual Pn 0.68 0
GU.TRAV.HHZ. 2020-05-31T16:39:27.78 0.3 undecidable manual S 50 1.0621 50 0.05 63
GU.CIRO.HHZ. 2020-05-31T16:39:26.80 0.3 undecidable manual S 42 1.0333 50 -0.07 63
GU.ENR.HHZ. 2020-05-31T16:39:20.97 0.1 undecidable manual S 135 0.8472 50 -0.38 82
GU.PCP.HHZ. 2020-05-31T16:39:19.77 0.1 undecidable manual P 101 1.42 50 0.51 68
GU.CANO.HHZ. 2020-05-31T16:39:18.35 0.3 undecidable manual P 117 1.3301 50 0.63 51
IV.QLNO.HHZ. 2020-05-31T16:39:18.38 0.1 undecidable manual P 111 1.3499 50 0.32 74
GU.RORO.HHZ. 2020-05-31T16:39:17.14 0.1 undecidable manual P 124 1.2761 50 0.35 75
FR.SAOF.HHZ.00 2020-05-31T16:39:14.14 0.3 undecidable manual P 141 1.0909 50 0.52 56
IV.MRGE.HHZ. 2020-05-31T16:39:13.19 0.3 undecidable manual P 19 0.9946 50 1.22 42
GU.CIRO.HHZ. 2020-05-31T16:39:13.27 0.3 undecidable manual P 42 1.0333 50 0.63 55
GU.TRAV.HHZ. 2020-05-31T16:39:13.60 0.1 undecidable manual P 50 1.0621 50 0.46 77
GU.GBOS.HHZ. 2020-05-31T16:39:13.42 0.1 undecidable manual P 123 1.0693 50 0.17 81
GU.RSP.HHZ. 2020-05-31T16:39:12.58 0.3 undecidable manual S 56 0.5729 50 -0.67 59
RD.ORIF.BHZ. 2020-05-31T16:39:10.66 0.1 undecidable manual S 280 0.509 50 -0.68 80
GU.PZZ.HHZ. 2020-05-31T16:39:09.70 0.3 undecidable manual S 131 0.4964 50 -1.26 46
GU.ENR.HHZ. 2020-05-31T16:39:09.49 0.1 undecidable manual P 135 0.8472 50 0.03 88
GU.RSP.HHZ. 2020-05-31T16:39:04.90 0.1 undecidable manual P 56 0.5729 50 0.12 92
RD.ORIF.BHZ. 2020-05-31T16:39:03.84 0.1 positive manual P 280 0.509 50 0.17 92
GU.PZZ.HHZ. 2020-05-31T16:39:02.77 0.1 undecidable manual P 131 0.4964 50 -0.69 80
MN.BNI.HHZ. 2020-05-31T16:39:01.97 0.3 undecidable manual S 16 0.2284 108 -0.51 67
GU.RRL.HHZ. 2020-05-31T16:38:59.94 0.1 undecidable manual S 58 0.1682 114 -0.38 94
MN.BNI.HHZ. 2020-05-31T16:38:58.47 0.3 undecidable manual P 16 0.2284 108 -0.09 74
GU.RRL.HHZ. 2020-05-31T16:38:57.40 0.1 positive manual P 58 0.1682 114 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
RD.ORIF.BHN. ML:1.9 0.0001825 0.28 AML other m 2020-05-31T16:39:11.01
GU.RRL.HHE. ML:2 0.0008895 0.26 AML other m 2020-05-31T16:39:00.44
GU.PZZ.HHN. ML:2.1 0.0003125 1.42 AML other m 2020-05-31T16:39:10.06
RD.ORIF.BHE. ML:1.9 0.000189 1.56 AML other m 2020-05-31T16:39:11.87
GU.PZZ.HHE. ML:2.1 0.0003225 0.8 AML other m 2020-05-31T16:39:12.24
GU.RSP.HHE. ML:1.7 8.895E-5 1.36 AML other m 2020-05-31T16:39:14.69
GU.RSP.HHN. ML:1.6 8.54E-5 0.68 AML other m 2020-05-31T16:39:18.53
GU.ENR.HHE. ML:2 0.0001011 0.26 AML other m 2020-05-31T16:39:21.96
GU.ENR.HHN. ML:2.1 0.0001245 0.54 AML other m 2020-05-31T16:39:22.38
GU.CIRO.HHE. ML:1.6 3.675E-5 0.7 AML other m 2020-05-31T16:39:28.75
GU.CIRO.HHN. ML:1.8 4.425E-5 0.36 AML other m 2020-05-31T16:39:29.44
GU.TRAV.HHE. ML:1.8 4.44E-5 0.3 AML other m 2020-05-31T16:39:30.52
GU.TRAV.HHN. ML:1.8 4.935E-5 0.22 AML other m 2020-05-31T16:39:31.42
FR.SAOF.HHE.00 ML:2 7.55E-5 0.28 AML other m 2020-05-31T16:39:36.69
FR.SAOF.HHN.00 ML:2.1 9.83E-5 0.5 AML other m 2020-05-31T16:39:36.72
GU.CANO.HHE. ML:2.3 0.000115 1.08 AML other m 2020-05-31T16:39:37.45
GU.CANO.HHN. ML:2.5 0.0001615 0.32 AML other m 2020-05-31T16:39:43.03
IV.QLNO.HHN. ML:1.8 3.115E-5 0.74 AML other m 2020-05-31T16:39:43.04
IV.QLNO.HHE. ML:1.8 3.705E-5 1.66 AML other m 2020-05-31T16:39:44.02
GU.PCP.HHE. ML:1.7 2.48E-5 0.42 AML other m 2020-05-31T16:39:45.07
GU.PCP.HHN. ML:1.9 3.46E-5 0.46 AML other m 2020-05-31T16:39:46.83
MN.BNI.HNE. ML:1.1 8.217622E-5 0.3584 AML other m 2020-05-31T16:39:04.74
MN.BNI.HNN. ML:1.2 9.0206855E-5 0.3584 AML other m 2020-05-31T16:39:02.59
GU.RSP.HNE. ML:1.6 7.6647305E-5 0.1408 AML other m 2020-05-31T16:39:15.86
GU.RSP.HNN. ML:1.6 7.4242735E-5 0.256 AML other m 2020-05-31T16:39:12.95
GU.RORO.HHN. ML:2.1 6.2660425E-5 0.3584 AML other m 2020-05-31T16:39:41.32
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