Earthquake with magnitude of ML 2.1 on date 28-11-2023 and time 16:39:30 (UTC) in region Confine Italia Francia (FRANCIA)

A magnitude ML 2.1 earthquake occured in region: Confine Italia Francia (FRANCIA), on

  • 28-11-2023 16:39:30 (UTC)
  • 28-11-2023 17:39:30 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.0110, 7.5330 at 8 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
Pigna IM 14 859 859
Rocchetta Nervina IM 14 298 1157
Castel Vittorio IM 15 287 1444
Olivetta San Michele IM 15 211 1655
Airole IM 16 407 2062
Isolabona IM 17 679 2741
Apricale IM 18 629 3370
Triora IM 19 355 3725
Bajardo IM 19 312 4037
Briga Alta CN 19 39 4076
Molini di Triora IM 20 617 4693
Dolceacqua IM 20 2074 6767
Perinaldo IM 20 870 7637

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km NW of Sanremo (54807 inhabitants)
43 Km S of Cuneo (56081 inhabitants)
83 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 2.1 2023-11-28
16:39:30
44.0113 7.5333 8 2023-11-28
16:54:19
Sala Sismica INGV-Roma 123538351
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-11-28 16:39:30 ± 0.14
Latitude 44.0113 ± 0.0072
Longitude 7.5333 ± 0.0113
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 123538351

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 958
Semi-minor axis of confidence ellipse (meter) 459
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) 960.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 152
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.42
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.84626
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 11
Magnitude information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 25
Type of magnitude ML
Reference to an origin 123538351
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-11-28 16:54:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MRB1.HHZ. 2023-11-28T16:41:21.56 3.0 undecidable manual Pg 12.68 0
ST.CARE.HNZ. 2023-11-28T16:41:13.02 3.0 undecidable manual Sg 7.14 0
IV.VITU.HHZ. 2023-11-28T16:41:05.51 3.0 negative manual Pn 0.06 0
IV.VCEL.EHZ. 2023-11-28T16:41:01.21 3.0 undecidable manual Pg 10.75 0
MN.TRI.HHZ. 2023-11-28T16:40:59.21 3.0 positive manual Pg 12.3 0
IV.BAG8.EHZ. 2023-11-28T16:40:54.49 3.0 undecidable manual Sn 1.18 0
IV.CADC.HNZ. 2023-11-28T16:40:48.52 3.0 undecidable manual Sg 5.12 0
IV.MURB.HHZ. 2023-11-28T16:40:41.43 3.0 undecidable manual Pg 7.55 0
ZO.PDN2.EHZ. 2023-11-28T16:40:26.75 3.0 positive manual Pg 6.81 0
ST.CARE.EHZ. 2023-11-28T16:40:23.94 3.0 undecidable manual Pn -2.13 0
IV.BRSN.HNZ. 2023-11-28T16:40:22.97 3.0 undecidable manual Pn -4.55 0
RD.ORIF.BHZ. 2023-11-28T16:39:59.68 3.0 negative manual P -2.12 0
IV.MONC.HHZ. 2023-11-28T16:39:53.50 3.0 positive manual P -1.09 0
IV.QLNO.HHZ. 2023-11-28T16:39:53.36 3.0 undecidable manual S -5.38 0
GU.PZZ.HHZ. 2023-11-28T16:39:50.13 0.3 undecidable manual S 329 64.1913 50 -0.55 60
GU.CANO.HHZ. 2023-11-28T16:39:49.08 0.3 undecidable manual S 69 60.0954 50 -0.52 62
GU.PCP.HHZ. 2023-11-28T16:39:48.39 3.0 positive manual P -3.84 0
GU.BHB.HHZ. 2023-11-28T16:39:46.47 0.3 undecidable manual P 347 93.9393 50 -0.22 62
GU.RORO.HHZ. 2023-11-28T16:39:44.87 0.6 undecidable manual S 75 43.9227 50 -0.41 43
4P.IT06A.HHZ. 2023-11-28T16:39:43.23 0.3 undecidable manual P 25 64.3911 50 1.09 48
GU.GBOS.HHZ. 2023-11-28T16:39:42.56 0.3 undecidable manual S 44 35.3424 103 -0.41 66
GU.PZZ.HHZ. 2023-11-28T16:39:42.74 0.3 undecidable manual P 329 64.1913 50 0.63 59
GU.IMI.HHZ. 2023-11-28T16:39:41.13 0.1 undecidable manual S 111 30.8469 104 -0.32 91
GU.CANO.HHZ. 2023-11-28T16:39:41.88 0.1 undecidable manual P 69 60.0954 50 0.39 85
GU.STV.HHZ. 2023-11-28T16:39:40.65 0.1 undecidable manual S 328 30.747 105 -0.77 78
GU.ENR.HHZ. 2023-11-28T16:39:39.57 0.1 undecidable manual S 339 25.8519 107 -0.22 94
GU.RORO.HHZ. 2023-11-28T16:39:39.23 0.1 undecidable manual P 75 43.9227 50 0.24 90
GU.BURY.HHZ. 2023-11-28T16:39:38.97 0.3 undecidable manual S 176 25.4523 107 -0.69 61
GU.GBOS.HHZ. 2023-11-28T16:39:37.99 0.1 undecidable manual P 44 35.3424 103 0.33 90
GU.IMI.HHZ. 2023-11-28T16:39:36.86 0.3 undecidable manual P 111 30.8469 104 0.08 72
GU.ENR.HHZ. 2023-11-28T16:39:36.26 0.1 undecidable manual P 339 25.8519 107 0.44 89
GU.STV.HHZ. 2023-11-28T16:39:36.96 0.1 undecidable manual P 328 30.747 105 0.2 93
GU.BURY.HHZ. 2023-11-28T16:39:35.66 0.1 undecidable manual P 176 25.4523 107 -0.09 96
FR.SAOF.HHZ.00 2023-11-28T16:39:33.47 0.1 undecidable manual S 151 3.1968 158 0.09 100
FR.SAOF.HHZ.00 2023-11-28T16:39:32.56 0.1 undecidable manual P 151 3.1968 158 0.44 93
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.STV.HHN. ML:2.0 0.000544 1.7 AML other m 2023-11-28T16:39:41.88
GU.STV.HHE. ML:2.0 0.00044339784999999996 0.128 AML other m 2023-11-28T16:39:40.75
GU.RORO.HHE. ML:2.1 0.00036482634999999996 0.1152 AML other m 2023-11-28T16:39:45.40
GU.RORO.HHN. ML:2.2 0.00048724855 0.1152 AML other m 2023-11-28T16:39:45.64
GU.CANO.HHN. ML:2.2 0.0003476458 0.2048 AML other m 2023-11-28T16:39:49.98
GU.CANO.HHE. ML:2.3 0.00037834334999999996 0.2816 AML other m 2023-11-28T16:39:50.75
GU.PZZ.HHN. ML:2.0 0.000182 0.3 AML other m 2023-11-28T16:39:51.43
GU.PZZ.HHE. ML:1.8 0.00010861013 0.3072 AML other m 2023-11-28T16:39:51.43
4P.IT06A.HHN. ML:2.5 0.0005600000000000001 0.24 AML other m 2023-11-28T16:39:53.51
4P.IT06A.HHE. ML:2.3 0.0003878571 0.3328 AML other m 2023-11-28T16:39:58.64
IV.MONC.HHN. ML:2.4 0.0001720109 0.448 AML other m 2023-11-28T16:40:23.12
IV.MONC.HHE. ML:2.4 0.00020020674 0.448 AML other m 2023-11-28T16:40:19.96
GU.BURY.HHE. ML:2.2 0.00093454825 0.256 AML other m 2023-11-28T16:39:39.67
GU.BURY.HHN. ML:1.9 0.0005434921 0.2688 AML other m 2023-11-28T16:39:39.14
GU.BURY.HNE. ML:1.9 0.00044840525 0.1536 AML other m 2023-11-28T16:39:39.41
GU.BURY.HNN. ML:2.2 0.0008743713 0.1792 AML other m 2023-11-28T16:39:39.21
GU.GBOS.HHE. ML:1.9 0.0003290587 0.1408 AML other m 2023-11-28T16:39:42.68
GU.BHB.HNE. ML:1.7 0.000049425645000000006 0.2688 AML other m 2023-11-28T16:40:00.28
GU.BHB.HNN. ML:1.7 0.000057094186 0.1408 AML other m 2023-11-28T16:39:59.94
GU.BHB.HHN. ML:1.8 0.00006528665999999999 0.1408 AML other m 2023-11-28T16:39:59.92
GU.PCP.HHE. ML:2.0 0.0001095433 0.2304 AML other m 2023-11-28T16:40:04.06
GU.PCP.HHN. ML:2.1 0.000122834875 0.2304 AML other m 2023-11-28T16:40:04.38
RD.ORIF.BHE. ML:1.9 0.000036983274999999994 1.4848 AML other m 2023-11-28T16:40:24.18
RD.ORIF.BHN. ML:1.8 0.000028105226 0.5888 AML other m 2023-11-28T16:40:23.08
IV.QLNO.HHE. ML:2.1 0.0002068452 0.3584 AML other m 2023-11-28T16:39:58.46
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
Waveforms Seismic signals in miniseed + resp format Download