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) 44.97, 6.64 at 8 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.

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 12 967 1181
Bardonecchia TO 14 3215 4396
Oulx TO 17 3307 7703
Sauze di Cesana TO 18 244 7947
Sauze d'Oulx TO 19 1109 9056
Sestriere TO 19 929 9985

Municipalities with at least 50000 inhabitants

An earthquake occurred to
82 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
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 1.8 2020-03-22
06:59:31
44.97 6.64 9 2020-07-18
21:08:30
Bollettino Sismico Italiano INGV 77783691
Reviewed
Rev100
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 ± 0.15
Latitude 44.97 ± 0.01
Longitude 6.64 ± 0.01
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 77783691

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 865
Semi-minor axis of confidence ellipse (meter) 607
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 59
Circular confidence region, given by single value of horizontal uncertainty (meter) 860
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 119
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 23
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) 0.08993
Epicentral distance of station farthest from the epicenter (degree) 3.50376
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 25
Type of magnitude ML
Reference to an origin 77783691
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-04-02 09:19:20

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 P 3.4633 1.073 0
IV.FIR.HHZ. 2020-03-22T07:00:25.90 3.0 undecidable manual P 3.5038 -0.83 0
GU.GSCL.HHZ. 2020-03-22T07:00:20.42 3.0 undecidable manual P 2.8715 2.42 0
GU.ENR.HHZ. 2020-03-22T07:00:02.37 0.6 undecidable manual S 143 0.9236 50 0.67 36
CH.GIMEL.HHE. 2020-03-22T07:00:01.60 1.0 undecidable manual P 351 1.5882 50 1.37 10
GU.STV.HHZ. 2020-03-22T07:00:00.71 0.6 undecidable manual S 146 0.8687 50 0.62 37
GU.CIRO.HHZ. 2020-03-22T07:00:00.74 0.6 undecidable manual S 45 0.9101 50 -0.56 38
IV.MRGE.HHZ. 2020-03-22T06:59:59.62 0.6 undecidable manual S 20 0.8553 50 -0.06 43
GU.RORO.HHZ. 2020-03-22T06:59:56.08 0.6 undecidable manual P 130 1.3256 50 0.35 36
FR.SAOF.HHZ.00 2020-03-22T06:59:54.56 3.0 negative manual P 1.1754 1.4 0
GU.PZZ.HHZ. 2020-03-22T06:59:50.65 0.6 undecidable manual S 144 0.5693 50 -0.55 41
RD.ORIF.BHZ. 2020-03-22T06:59:49.34 0.6 undecidable manual S 265 0.5405 50 -1.02 34
GU.CIRO.HHZ. 2020-03-22T06:59:49.03 0.6 undecidable manual P 45 0.9101 50 0.41 39
GU.ENR.HHZ. 2020-03-22T06:59:49.33 0.6 undecidable manual P 143 0.9236 50 0.48 39
GU.BLANC.HHZ. 2020-03-22T06:59:49.29 0.6 undecidable manual P 13 0.902 50 0.81 34
GU.RSP.HHZ. 2020-03-22T06:59:48.32 0.6 undecidable manual S 67 0.4766 50 -0.13 46
IV.MRGE.HHZ. 2020-03-22T06:59:48.06 0.3 undecidable manual P 20 0.8553 50 0.37 60
GU.STV.HHZ. 2020-03-22T06:59:48.44 0.6 undecidable manual P 146 0.8687 50 0.52 39
GU.BHB.HHZ. 2020-03-22T06:59:47.21 0.6 undecidable manual S 106 0.4587 50 -0.73 39
RD.ORIF.BHZ. 2020-03-22T06:59:42.24 0.1 negative manual P 265 0.5405 50 -0.06 91
GU.PZZ.HHZ. 2020-03-22T06:59:42.45 0.3 undecidable manual P 144 0.5693 50 -0.34 64
GU.RSP.HHZ. 2020-03-22T06:59:41.14 0.3 undecidable manual P 67 0.4766 50 -0.06 69
GU.BHB.HHZ. 2020-03-22T06:59:40.72 0.1 negative manual P 106 0.4587 50 -0.19 91
GU.RRL.HHZ. 2020-03-22T06:59:36.29 0.6 undecidable manual S 113 0.1151 124 -0.32 47
MN.BNI.HHZ. 2020-03-22T06:59:35.53 0.6 undecidable manual S 17 0.0899 130 -0.31 47
MN.BNI.HHZ. 2020-03-22T06:59:34.04 0.1 positive manual P 17 0.0899 130 0.12 99
GU.RRL.HHZ. 2020-03-22T06:59:34.40 0.1 positive manual P 113 0.1151 124 0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
FR.SAOF.HHN.00 ML:1.7 3.731926E-5 1.3024 AML other m 2020-03-22T07:00:17.85
MN.BNI.HNN. ML:1.6 0.000549569 0.08 AML other m 2020-03-22T06:59:35.80
GU.RRL.HHN. ML:2 0.00116075195 0.1408 AML other m 2020-03-22T06:59:36.37
GU.RRL.HHE. ML:2 0.00109442875 0.1408 AML other m 2020-03-22T06:59:36.52
GU.BHB.HHN. ML:1.8 0.00016692635 0.1216 AML other m 2020-03-22T06:59:47.69
GU.BHB.HHE. ML:1.7 0.00012499685 0.0992 AML other m 2020-03-22T06:59:48.35
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
GU.RSP.HHN. ML:1.8 0.0001669718 0.16 AML other m 2020-03-22T06:59:48.83
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.RSP.HHE. ML:1.9 0.00020344485 0.08 AML other m 2020-03-22T06:59:49.50
GU.PZZ.HHN. ML:2.4 0.00054538125 0.1824 AML other m 2020-03-22T06:59:51.23
GU.PZZ.HHE. ML:2.5 0.000560774 0.2592 AML other m 2020-03-22T06:59:51.57
IV.MRGE.HHE. ML:1.4 2.482435E-5 0.2208 AML other m 2020-03-22T07:00:00.29
GU.STV.HHE. ML:1.8 7.1813165E-5 0.1792 AML other m 2020-03-22T07:00:01.54
IV.MRGE.HHN. ML:1.6 4.2021485E-5 0.16 AML other m 2020-03-22T07:00:02.05
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
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