Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 22-10-2020 and time 12:57:08 (UTC) in region Confine Italia Francia (FRANCIA)

A magnitude ML 0.8 earthquake occured in region: Confine Italia Francia (FRANCIA), on

  • 22-10-2020 12:57:08 (UTC)
  • 22-10-2020 14:57:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.5500, 6.8010 at 9 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Acceglio CN 17 162 162
Bellino CN 18 109 271
Pontechianale CN 20 179 450

Municipalities with at least 50000 inhabitants

An earthquake occurred to
62 Km W of Cuneo (56081 inhabitants)
86 Km SW of Moncalieri (57294 inhabitants)
91 Km SW 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
Reviewed
Rev100 		ML 0.8 2020-10-22
12:57:08		 44.5498 6.8013 9 2020-10-22
13:08:32		 Sala Sismica INGV-Roma 84028301
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-22 12:57:08 ± 0.26
Latitude 44.5498 ± 0.0090
Longitude 6.8013 ± 0.0151
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 84028301

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1179
Semi-minor axis of confidence ellipse (meter) 770
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 66
Circular confidence region, given by single value of horizontal uncertainty (meter) 1180.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 171
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) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.22843
Epicentral distance of station farthest from the epicenter (degree) 0.75093
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:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 84028301
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-22 13:08:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
RD.ORIF.BHE. 2020-10-22T12:57:33.13 0.6 undecidable manual S 300 83.3499 50 -0.24 44
GU.RSP.HHZ. 2020-10-22T12:57:31.07 0.3 undecidable manual S 29 75.7686 50 -0.28 66
GU.ENR.HHZ. 2020-10-22T12:57:27.42 0.6 undecidable manual S 126 60.7947 50 0.07 47
GU.STV.HHZ. 2020-10-22T12:57:25.04 0.3 undecidable manual S 129 53.6019 50 -0.39 67
GU.BHB.HHZ. 2020-10-22T12:57:24.31 0.6 undecidable manual S 49 48.2184 50 0.3 46
GU.RSP.HHZ. 2020-10-22T12:57:22.26 0.6 undecidable manual P 29 75.7686 50 0.68 39
RD.ORIF.BHE. 2020-10-22T12:57:22.44 1.0 undecidable manual P 300 83.3499 50 -0.31 21
GU.RRL.HHZ. 2020-10-22T12:57:21.79 0.3 undecidable manual S 359 41.1255 50 -0.33 69
GU.ENR.HHZ. 2020-10-22T12:57:19.91 0.1 undecidable manual P 126 60.7947 50 0.63 82
GU.STV.HHZ. 2020-10-22T12:57:17.68 0.6 undecidable manual P 129 53.6019 50 -0.49 44
GU.BHB.HHZ. 2020-10-22T12:57:17.70 0.3 undecidable manual P 49 48.2184 50 0.35 68
GU.PZZ.HHZ. 2020-10-22T12:57:17.17 0.3 undecidable manual S 101 25.3524 110 -0.43 70
GU.RRL.HHZ. 2020-10-22T12:57:16.35 0.3 undecidable manual P 359 41.1255 50 0.1 73
GU.PZZ.HHZ. 2020-10-22T12:57:13.74 0.1 undecidable manual P 101 25.3524 110 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.RRL.HHE. ML:0.8 0.0000188345275 0.1792 AML other m 2020-10-22T12:57:22.34
GU.RRL.HHN. ML:0.9 0.000025776175 0.2624 AML other m 2020-10-22T12:57:22.40
GU.BHB.HHE. ML:0.3 0.0000071784275 0.1024 AML other m 2020-10-22T12:57:25.21
GU.BHB.HHN. ML:0.7 0.000012933686999999999 0.1408 AML other m 2020-10-22T12:57:25.43
GU.ENR.HHE. ML:0.9 0.0000165046415 0.0768 AML other m 2020-10-22T12:57:28.41
GU.ENR.HHN. ML:0.9 0.0000165892015 0.0832 AML other m 2020-10-22T12:57:28.45
GU.RSP.HHE. ML:0.5 0.000006550546 0.16 AML other m 2020-10-22T12:57:32.77
GU.RSP.HHN. ML:0.8 0.000008515991 0.1216 AML other m 2020-10-22T12:57:33.19
GU.RSP.HNE. ML:1.0 0.000013446349999999999 0.1792 AML other m 2020-10-22T12:57:33.55
GU.RSP.HNN. ML:1.0 0.000012737085799999999 0.1984 AML other m 2020-10-22T12:57:35.02
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