Earthquake with magnitude of Md 1.3 on date 07-12-2023 and time 22:27:17 (UTC) in region Confine Italia Francia (FRANCIA)

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

  • 07-12-2023 22:27:17 (UTC)
  • 07-12-2023 23:27:17 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.0030, 7.5200 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Olivetta San Michele IM 14 211 211
Pigna IM 14 859 1070
Rocchetta Nervina IM 14 298 1368
Airole IM 15 407 1775
Castel Vittorio IM 15 287 2062
Isolabona IM 17 679 2741
Apricale IM 18 629 3370
Dolceacqua IM 19 2074 5444
Bajardo IM 19 312 5756
Triora IM 20 355 6111
Perinaldo IM 20 870 6981

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km NW of Sanremo (54807 inhabitants)
44 Km S of Cuneo (56081 inhabitants)
84 Km W of Savona (61345 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
Md 1.3 2023-12-07
22:27:17
44.003 7.5198 9 2023-12-07
22:36:35
Sala Sismica INGV-Roma 123883691
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-12-07 22:27:17 ± 0.15
Latitude 44.0030 ± 0.0081
Longitude 7.5198 ± 0.0163
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 123883691

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1400
Semi-minor axis of confidence ellipse (meter) 645
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 241
Circular confidence region, given by single value of horizontal uncertainty (meter) 1400.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 157
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) 0.38
Epicentral distance of station closest to the epicenter (degree) 0.02878
Epicentral distance of station farthest from the epicenter (degree) 0.40739
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

Md:1.3

Field Value
Value 1.3
Uncertainty 0.4
Num. used stations 3
Type of magnitude Md
Reference to an origin 123883691
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-12-07 22:36:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.RORO.HHZ. 2023-12-07T22:27:32.40 0.6 undecidable manual S 74 45.2214 50 -0.28 47
GU.GBOS.HHZ. 2023-12-07T22:27:30.10 0.6 undecidable manual S 44 36.741 50 -0.3 47
GU.IMI.HHZ. 2023-12-07T22:27:28.60 0.3 undecidable manual S 109 31.5462 50 -0.41 70
GU.STV.HHZ. 2023-12-07T22:27:28.10 0.3 undecidable manual S 330 30.9468 50 -0.76 62
GU.ENR.HHE. 2023-12-07T22:27:27.16 0.3 undecidable manual S 342 26.3514 110 -0.33 72
GU.BURY.HHZ. 2023-12-07T22:27:26.50 0.3 undecidable manual S 173 24.6531 111 -0.42 71
GU.RORO.HHZ. 2023-12-07T22:27:26.82 0.3 undecidable manual P 74 45.2214 50 0.45 68
GU.GBOS.HHZ. 2023-12-07T22:27:25.55 0.1 undecidable manual P 44 36.741 50 0.49 91
GU.STV.HHZ. 2023-12-07T22:27:24.47 0.1 undecidable manual P 330 30.9468 50 0.3 96
GU.IMI.HHZ. 2023-12-07T22:27:24.39 0.3 undecidable manual P 109 31.5462 50 0.13 74
GU.BURY.HHZ. 2023-12-07T22:27:23.34 0.1 undecidable manual P 173 24.6531 111 0.29 97
GU.ENR.HHE. 2023-12-07T22:27:23.75 0.3 undecidable manual P 342 26.3514 110 0.37 71
FR.SAOF.HHZ.00 2023-12-07T22:27:20.07 0.3 positive manual P 126 3.1968 161 0.31 75
FR.SAOF.HHZ.00 2023-12-07T22:27:20.90 0.1 undecidable manual S 126 3.1968 161 -0.32 100
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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