Earthquake with magnitude of ML 1.8 on date 22-03-2020 and time 07:59:31 (Italy) in region Confine Italia Francia (FRANCIA)

A magnitude ML 1.8 earthquake occured in region: Confine Italia Francia (FRANCIA), on

  • 22-03-2020 06:59:31 (UTC)
  • 22-03-2020 07:59:31 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.96, 6.64 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 9 214 214
Cesana Torinese TO 13 967 1181
Bardonecchia TO 15 3215 4396
Oulx TO 18 3307 7703
Sauze di Cesana TO 18 244 7947
Sestriere TO 19 929 8876
Sauze d'Oulx TO 19 1109 9985

Municipalities with at least 50000 inhabitants

An earthquake occurred to
83 Km W of Moncalieri (57294 inhabitants)
83 Km W of Torino (890529 inhabitants)
96 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 1.8 2020-03-22
06:59:31
44.96 6.64 8 2020-03-22
07:08:43
Sala Sismica INGV-Roma 77458221
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-22 06:59:31 ± 0.16
Latitude 44.96 ± 0.01
Longitude 6.64 ± 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 77458221

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1209
Semi-minor axis of confidence ellipse (meter) 868
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 39
Circular confidence region, given by single value of horizontal uncertainty (meter) 1210
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 121
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 1.5945
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 23
Type of magnitude ML
Reference to an origin 77458221
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-22 07:08:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MTRZ.HHZ. 2020-03-22T07:00:36.89 3.0 undecidable manual Pg 11.77 0
IV.FIR.HHZ. 2020-03-22T07:00:25.90 3.0 undecidable manual Pn 0.22 0
GU.GSCL.HHZ. 2020-03-22T07:00:20.42 3.0 undecidable manual Pn 3.45 0
CH.GIMEL.HHE. 2020-03-22T07:00:01.60 1.0 undecidable manual P 351 1.5945 50 1.32 11
MN.BURY.HHZ. 2020-03-22T06:59:57.86 3.0 undecidable manual P 0
GU.RORO.HHZ. 2020-03-22T06:59:56.08 0.6 positive manual P 129 1.3247 50 0.42 36
FR.SAOF.HHZ.00 2020-03-22T06:59:54.56 3.0 negative manual P 0.94 0
RD.ORIF.BHZ. 2020-03-22T06:59:49.34 0.6 undecidable manual S 266 0.536 50 -0.84 37
GU.ENR.HHZ. 2020-03-22T06:59:49.33 0.6 undecidable manual P 142 0.9209 50 0.58 37
GU.CIRO.HHZ. 2020-03-22T06:59:49.03 0.6 undecidable manual P 45 0.9182 50 0.32 40
IV.MRGE.HHZ. 2020-03-22T06:59:48.06 0.3 undecidable manual P 20 0.8642 50 0.28 62
GU.STV.HHZ. 2020-03-22T06:59:48.51 0.6 positive manual P 145 0.866 50 0.7 36
GU.BHB.HHZ. 2020-03-22T06:59:47.21 0.6 undecidable manual S 105 0.4614 50 -0.77 38
RD.ORIF.BHZ. 2020-03-22T06:59:42.24 0.3 negative manual P 266 0.536 50 0.08 69
GU.PZZ.HHZ. 2020-03-22T06:59:42.45 0.3 undecidable manual P 143 0.5666 50 -0.23 66
GU.RSP.HHZ. 2020-03-22T06:59:41.14 0.3 undecidable manual P 67 0.4838 50 -0.13 69
GU.BHB.HHZ. 2020-03-22T06:59:40.72 0.1 negative manual P 105 0.4614 50 -0.17 92
GU.RRL.HHZ. 2020-03-22T06:59:36.29 0.6 undecidable manual S 109 0.1169 123 -0.25 48
MN.BNI.HHZ. 2020-03-22T06:59:35.53 0.6 undecidable manual S 18 0.098 127 -0.42 47
MN.BNI.HHZ. 2020-03-22T06:59:34.04 0.1 negative manual P 18 0.098 127 0.09 100
GU.RRL.HHZ. 2020-03-22T06:59:34.40 0.1 positive manual P 109 0.1169 123 0.11 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.BNI.HNE. ML:1.7 0.000651466 0.08 AML other m 2020-03-22T06:59:35.73
MN.BNI.HNN. ML:1.6 0.000549569 0.08 AML other m 2020-03-22T06:59:35.80
GU.RRL.HHE. ML:2 0.00109442875 0.1408 AML other m 2020-03-22T06:59:36.52
GU.RRL.HHN. ML:2 0.00116075195 0.1408 AML other m 2020-03-22T06:59:36.37
GU.BHB.HHE. ML:1.7 0.00012499685 0.0992 AML other m 2020-03-22T06:59:48.35
GU.BHB.HHN. ML:1.8 0.00016692635 0.1216 AML other m 2020-03-22T06:59:47.69
GU.RSP.HHE. ML:1.9 0.00020344485 0.08 AML other m 2020-03-22T06:59:49.50
GU.RSP.HHN. ML:1.8 0.0001669718 0.16 AML other m 2020-03-22T06:59:48.83
GU.RSP.HNE. ML:1.9 0.00018757986 0.1408 AML other m 2020-03-22T06:59:48.80
GU.RSP.HNN. ML:1.8 0.00015051425 0.1408 AML other m 2020-03-22T06:59:48.91
RD.ORIF.BHE. ML:1.6 7.5903725E-5 0.2016 AML other m 2020-03-22T06:59:49.48
RD.ORIF.BHN. ML:1.5 6.2244475E-5 0.2016 AML other m 2020-03-22T06:59:49.48
GU.PZZ.HHE. ML:2.4 0.000560774 0.2592 AML other m 2020-03-22T06:59:51.57
GU.PZZ.HHN. ML:2.4 0.00054538125 0.1824 AML other m 2020-03-22T06:59:51.23
IV.MRGE.HHE. ML:1.4 2.482435E-5 0.2208 AML other m 2020-03-22T07:00:00.29
IV.MRGE.HHN. ML:1.6 4.2021485E-5 0.16 AML other m 2020-03-22T07:00:02.05
GU.STV.HHE. ML:1.8 7.1813165E-5 0.1792 AML other m 2020-03-22T07:00:01.54
GU.STV.HHN. ML:1.9 7.9157905E-5 0.3008 AML other m 2020-03-22T07:00:02.70
GU.CIRO.HHE. ML:1.7 5.022412E-5 0.1984 AML other m 2020-03-22T07:00:02.68
GU.CIRO.HHN. ML:1.6 3.6860495E-5 0.2432 AML other m 2020-03-22T07:00:03.51
GU.ENR.HHE. ML:2 8.997237E-5 0.08 AML other m 2020-03-22T07:00:03.61
GU.ENR.HHN. ML:1.9 8.213906E-5 0.1984 AML other m 2020-03-22T07:00:03.00
FR.SAOF.HHE.00 ML:1.7 3.614572E-5 0.3392 AML other m 2020-03-22T07:00:12.59
FR.SAOF.HHN.00 ML:1.7 3.731926E-5 0.6976 AML other m 2020-03-22T07:00:17.85
GU.RORO.HHN. ML:1.8 3.372619E-5 0.2432 AML other m 2020-03-22T07:00:13.42
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