Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.7 on date 11-05-2024 and time 10:22:51 (Italy) in region Confine Italia Francia (FRANCIA)

A magnitude ML 0.7 earthquake occured in region: Confine Italia Francia (FRANCIA), on

  • 11-05-2024 08:22:51 (UTC)
  • 11-05-2024 10:22:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.9990, 7.5190 at 10 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.

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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
Olivetta San Michele IM 13 211 211
Rocchetta Nervina IM 14 298 509
Pigna IM 14 859 1368
Airole IM 14 407 1775
Castel Vittorio IM 15 287 2062
Isolabona IM 16 679 2741
Apricale IM 17 629 3370
Dolceacqua IM 19 2074 5444
Bajardo IM 19 312 5756
Perinaldo IM 19 870 6626
Triora IM 20 355 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 		ML 0.7 2024-05-11
08:22:51		 43.9992 7.5187 10 2024-05-11
08:28:25		 Sala Sismica INGV-Roma 127600841
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-05-11 08:22:51 ± 0.16
Latitude 43.9992 ± 0.0108
Longitude 7.5187 ± 0.0188
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 127600841

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1598
Semi-minor axis of confidence ellipse (meter) 943
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 232
Circular confidence region, given by single value of horizontal uncertainty (meter) 1600.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 158
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.33455
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.4
Num. used stations 12
Type of magnitude ML
Reference to an origin 127600841
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-05-11 08:28:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.PZZ.HHZ. 2024-05-11T08:23:10.87 3.0 undecidable manual S -0.79 0
GU.GBOS.HHZ. 2024-05-11T08:23:03.61 0.6 undecidable manual S 43 37.1295 50 -0.28 47
GU.IMI.HHZ. 2024-05-11T08:23:02.07 0.6 undecidable manual S 108 31.4463 50 -0.31 47
GU.STV.HHZ. 2024-05-11T08:23:01.82 0.6 undecidable manual S 331 31.2465 50 -0.51 45
GU.ENR.HHE. 2024-05-11T08:23:00.56 0.6 undecidable manual S 343 26.751 50 -0.56 44
GU.RORO.HHZ. 2024-05-11T08:23:00.21 3.0 undecidable manual P -0.1 0
GU.BURY.HHZ. 2024-05-11T08:22:59.89 0.6 undecidable manual S 173 24.2535 112 -0.46 46
GU.GBOS.HHZ. 2024-05-11T08:22:59.04 0.3 undecidable manual P 43 37.1295 50 0.49 67
GU.STV.HHZ. 2024-05-11T08:22:58.04 0.6 undecidable manual P 331 31.2465 50 0.38 46
GU.IMI.HHZ. 2024-05-11T08:22:57.94 0.6 undecidable manual P 108 31.4463 50 0.25 47
GU.ENR.HHE. 2024-05-11T08:22:57.27 0.3 undecidable manual P 343 26.751 50 0.31 71
GU.BURY.HHZ. 2024-05-11T08:22:56.87 0.6 negative manual P 173 24.2535 112 0.36 47
FR.SAOF.HHZ.00 2024-05-11T08:22:54.51 0.3 undecidable manual S 118 3.0969 163 -0.36 73
FR.SAOF.HHZ.00 2024-05-11T08:22:53.57 0.1 undecidable manual P 118 3.0969 163 0.22 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
FR.SAOF.HHN.00 ML:1.5 0.0005600000000000001 0.06 AML other m 2024-05-11T08:22:54.56
FR.SAOF.HHE.00 ML:1.4 0.0005365 0.04 AML other m 2024-05-11T08:22:54.60
GU.STV.HHE. ML:0.8 0.000031938585000000005 0.06 AML other m 2024-05-11T08:23:01.95
GU.STV.HHN. ML:0.7 0.00002735 1.72 AML other m 2024-05-11T08:23:02.98
GU.IMI.HHE. ML:1.1 0.00005365 0.08 AML other m 2024-05-11T08:23:02.27
GU.IMI.HHN. ML:1.2 0.00006872651500000001 0.08 AML other m 2024-05-11T08:23:02.31
GU.BURY.HHE. ML:0.5 0.000020656205 0.1 AML other m 2024-05-11T08:23:00.28
GU.BURY.HHN. ML:0.6 0.000023284949999999998 0.16 AML other m 2024-05-11T08:23:00.09
GU.GBOS.HHE. ML:0.1 0.0000071863555 0.18 AML other m 2024-05-11T08:22:59.32
GU.GBOS.HHN. ML:0.1 0.0000042553605 0.16 AML other m 2024-05-11T08:23:03.84
GU.RORO.HHE. ML:0.5 0.000012043245000000002 1.1 AML other m 2024-05-11T08:23:06.42
GU.RORO.HHN. ML:0.5 0.0000100480435 0.08 AML other m 2024-05-11T08:23:06.71
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