Earthquake with magnitude of ML 1.3 on date 22-05-2021 and time 07:01:52 (Italy) in region Confine Italia Francia (FRANCIA)

A magnitude ML 1.3 earthquake occured in region: Confine Italia Francia (FRANCIA), on

  • 22-05-2021 05:01:52 (UTC)
  • 22-05-2021 07:01:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.7170, 6.7950 at 12 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
70 Km NW of Cuneo (56081 inhabitants)
77 Km W of Moncalieri (57294 inhabitants)
80 Km W 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 1.3 2021-05-22
05:01:52
44.7173 6.7947 12 2021-12-29
11:12:01
Bollettino Sismico Italiano INGV 90508651
Reviewed
Rev100
ML 1.4 2021-05-22
05:01:52
44.7235 6.8232 10 2021-05-22
05:10:31
Sala Sismica INGV-Roma 90361191
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-05-22 05:01:52 ± 0.11
Latitude 44.7173 ± 0.0063
Longitude 6.7947 ± 0.0114
Depth (km) 12 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 90508651

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 898
Semi-minor axis of confidence ellipse (meter) 341
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 229
Circular confidence region, given by single value of horizontal uncertainty (meter) 900.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 145
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 6.65318
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 9
Type of magnitude ML
Reference to an origin 90508651
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-05-26 11:14:16

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 90361191
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-05-22 05:10:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GAVE.EHZ. 2021-05-22T05:04:29.20 3.0 undecidable manual Sg 12.19 0
IV.EL6.EHZ. 2021-05-22T05:04:28.68 3.0 undecidable manual Sg 13.61 0
IV.VIVA.HHZ. 2021-05-22T05:04:14.17 3.0 undecidable manual Sn -9.99 0
MN.TRI.HHZ. 2021-05-22T05:04:12.57 3.0 undecidable manual Sn -7.53 0
IV.CSNT.HHZ. 2021-05-22T05:03:43.90 3.0 undecidable manual Sg 0.7 0
IV.MBAL.EHZ. 2021-05-22T05:03:31.50 3.0 undecidable manual Sg 1 0
IV.COLB.HHZ. 2021-05-22T05:03:30.22 3.0 undecidable manual P 738.5052 -1.16 0
IV.FAGN.HHZ. 2021-05-22T05:03:16.61 3.0 positive manual P 610.2336 1.2 0
IV.OFFI.HHZ. 2021-05-22T05:03:16.51 3.0 positive manual P 585.6693 4.15 0
IV.PP3.EHZ. 2021-05-22T05:03:09.60 3.0 negative manual P 563.214 0.04 0
IV.CRTC.HHZ. 2021-05-22T05:03:08.31 3.0 positive manual P 495.0267 7.23 0
IV.ARRO.EHZ. 2021-05-22T05:03:06.54 3.0 undecidable manual P 534.6648 0.53 0
IV.CELB.HHZ. 2021-05-22T05:02:42.56 3.0 positive manual P 350.3826 -0.52 0
IV.EUCT.HNZ. 2021-05-22T05:02:23.66 3.0 positive manual P 191.364 0.36 0
RD.ORIF.BHZ. 2021-05-22T05:02:15.16 0.3 undecidable manual S 288 75.369 91 -0.38 62
GU.ENR.HHZ. 2021-05-22T05:02:14.80 0.3 undecidable manual S 137 73.2711 91 -0.18 67
GU.IMI.HHZ. 2021-05-22T05:02:14.16 0.6 undecidable manual P 135 124.986 91 0.51 37
GU.RSP.HNN. 2021-05-22T05:02:11.57 0.3 undecidable manual S 38 60.3951 92 0.02 69
FR.SAOF.HHZ.00 2021-05-22T05:02:10.51 0.3 undecidable manual P 143 101.0211 91 0.56 57
GU.GBOS.HHZ. 2021-05-22T05:02:09.73 0.3 undecidable manual P 122 98.124 91 0.22 62
RD.ORIF.BHZ. 2021-05-22T05:02:06.25 0.3 undecidable manual P 288 75.369 91 0.25 66
MN.BNI.HHZ. 2021-05-22T05:02:05.67 0.6 undecidable manual S 346 38.2284 93 0.03 49
GU.BHB.HHZ. 2021-05-22T05:02:05.77 0.3 undecidable manual S 70 39.1275 93 -0.11 72
GU.ENR.HHZ. 2021-05-22T05:02:05.88 0.1 undecidable manual P 137 73.2711 91 0.2 87
GU.RSP.HNN. 2021-05-22T05:02:04.18 0.3 undecidable manual P 38 60.3951 92 0.48 63
GU.PZZ.HHE. 2021-05-22T05:02:03.93 0.3 undecidable manual S 133 34.4433 93 -0.71 62
GU.RRL.HHE. 2021-05-22T05:02:01.06 0.3 undecidable manual S 359 22.5552 98 -0.42 68
MN.BNI.HHZ. 2021-05-22T05:02:00.37 0.3 undecidable manual P 346 38.2284 93 0.08 72
GU.BHB.HHZ. 2021-05-22T05:02:00.54 0.1 negative manual P 70 39.1275 93 0.11 94
GU.PZZ.HHE. 2021-05-22T05:01:59.33 0.1 undecidable manual P 133 34.4433 93 -0.38 91
GU.RRL.HHE. 2021-05-22T05:01:57.91 0.1 undecidable manual P 359 22.5552 98 0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.BHB.HHE. ML:1.4 0.00008025 0.14 AML other m 2021-05-22T05:02:05.84
MN.BNI.HHE. ML:1.2 0.00005495 0.78 AML other m 2021-05-22T05:02:06.51
GU.BHB.HHN. ML:1.3 0.0000765 1.02 AML other m 2021-05-22T05:02:06.79
MN.BNI.HHN. ML:1.0 0.0000351 0.62 AML other m 2021-05-22T05:02:07.96
MN.BNI.HNN. ML:1.0 0.000034188585 0.1792 AML other m 2021-05-22T05:02:06.63
GU.ENR.HHN. ML:1.9 0.000115 1.64 AML other m 2021-05-22T05:02:15.15
GU.ENR.HHE. ML:1.9 0.0001365 0.92 AML other m 2021-05-22T05:02:16.37
FR.SAOF.HHE.00 ML:1.7 0.000044899999999999994 0.36 AML other m 2021-05-22T05:02:24.25
MN.BNI.HNE. ML:1.2 0.00004848052 0.2016 AML other m 2021-05-22T05:02:06.22
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