Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 01-10-2020 and time 12:57:01 (Italy) in region Confine Italia Francia (FRANCIA)

A magnitude ML 1.1 earthquake occured in region: Confine Italia Francia (FRANCIA), on

  • 01-10-2020 10:57:01 (UTC)
  • 01-10-2020 12:57:01 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.2070, 7.0140 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Pietraporzio CN 15 77 77
Sambuco CN 16 92 169
Vinadio CN 17 644 813
Argentera CN 20 83 896

Municipalities with at least 50000 inhabitants

An earthquake occurred to
48 Km W of Cuneo (56081 inhabitants)
75 Km NW of Sanremo (54807 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 1.1 2020-10-01
10:57:01		 44.2072 7.0142 12 2021-02-26
14:55:58		 Bollettino Sismico Italiano INGV 83757861
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-01 10:57:01 ± 0.15
Latitude 44.2072 ± 0.0081
Longitude 7.0142 ± 0.0100
Depth (km) 12 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 83757861

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1069
Semi-minor axis of confidence ellipse (meter) 166
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 218
Circular confidence region, given by single value of horizontal uncertainty (meter) 1070.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 175
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.22663
Epicentral distance of station farthest from the epicenter (degree) 1.07559
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 83757861
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-10-13 15:29:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
RD.ORIF.BHE. 2020-10-01T10:57:35.92 1.0 undecidable manual S 312 119.3916 91 0.17 21
GU.CANO.HHZ. 2020-10-01T10:57:30.16 0.6 undecidable manual S 90 97.2249 91 0.33 41
GU.RRL.HHE. 2020-10-01T10:57:25.57 0.3 undecidable manual S 348 81.1521 91 0.05 67
IV.IMI.HHZ. 2020-10-01T10:57:24.38 0.6 undecidable manual S 115 77.4669 91 -0.16 46
GU.BHB.HHZ. 2020-10-01T10:57:23.22 0.3 undecidable manual S 16 72.372 91 0.02 67
GU.MGRO.HHZ. 2020-10-01T10:57:21.85 0.3 undecidable manual S 106 65.7897 91 0.41 64
GU.GBOS.HHZ. 2020-10-01T10:57:21.57 0.3 undecidable manual S 86 65.7897 91 0.14 69
RD.ORIF.BHE. 2020-10-01T10:57:21.70 0.6 undecidable manual P 312 119.3916 91 0.46 39
GU.CANO.HHZ. 2020-10-01T10:57:18.43 0.1 undecidable manual P 90 97.2249 91 0.61 76
MN.BNI.HHN. 2020-10-01T10:57:18.52 1.0 undecidable manual P 344 97.4247 91 0.67 19
FR.SAOF.HHZ.00 2020-10-01T10:57:16.45 0.3 undecidable manual S 120 49.4172 92 -0.62 65
GU.RRL.HHE. 2020-10-01T10:57:15.26 0.1 undecidable manual P 348 81.1521 91 -0.07 88
GU.BHB.HHZ. 2020-10-01T10:57:14.16 0.1 undecidable manual P 16 72.372 91 0.17 92
IV.IMI.HHZ. 2020-10-01T10:57:14.72 0.1 undecidable manual P 115 77.4669 91 -0.05 92
GU.GBOS.HHZ. 2020-10-01T10:57:13.29 1.0 undecidable manual P 86 65.7897 91 0.32 22
GU.ENR.HHZ. 2020-10-01T10:57:12.61 0.3 undecidable manual S 86 32.3454 93 0.09 75
GU.MGRO.HHZ. 2020-10-01T10:57:12.94 0.1 undecidable manual P 106 65.7897 91 -0.04 94
GU.PZZ.HHZ. 2020-10-01T10:57:12.84 0.3 undecidable manual S 14 34.2435 93 -0.17 68
GU.BURY.HNN. 2020-10-01T10:57:12.15 1.0 undecidable manual P 137 63.9915 91 -0.55 22
GU.STV.HHZ. 2020-10-01T10:57:10.53 0.3 undecidable manual S 80 25.1526 95 -0.07 73
FR.SAOF.HHZ.00 2020-10-01T10:57:10.03 0.1 undecidable manual P 120 49.4172 92 -0.42 90
GU.PZZ.HHZ. 2020-10-01T10:57:08.08 0.1 undecidable manual P 14 34.2435 93 -0.03 97
GU.ENR.HHZ. 2020-10-01T10:57:07.86 0.1 undecidable manual P 86 32.3454 93 0.03 100
GU.STV.HHZ. 2020-10-01T10:57:06.69 0.1 undecidable manual P 80 25.1526 95 -0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.STV.HHN. ML:1.0 0.00004795 0.38 AML other m 2020-10-01T10:57:10.60
GU.ENR.HHN. ML:1.5 0.0001305 0.18 AML other m 2020-10-01T10:57:12.88
GU.ENR.HHE. ML:1.3 0.00009265000000000002 0.16 AML other m 2020-10-01T10:57:12.88
GU.PZZ.HHN. ML:1.3 0.000083 0.42 AML other m 2020-10-01T10:57:13.71
GU.PZZ.HHE. ML:1.4 0.00010435 0.66 AML other m 2020-10-01T10:57:13.46
GU.STV.HHE. ML:0.7 0.000031223210000000004 0.16 AML other m 2020-10-01T10:57:10.62
GU.GBOS.HHN. ML:0.9 0.0000168214 0.1664 AML other m 2020-10-01T10:57:22.40
GU.GBOS.HHE. ML:0.9 0.000014394987500000001 0.1216 AML other m 2020-10-01T10:57:23.79
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