Earthquake with magnitude of ML 1.1 on date 25-07-2023 and time 04:00:43 (UTC) in region Confine Italia Francia (FRANCIA)

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

  • 25-07-2023 04:00:43 (UTC)
  • 25-07-2023 06:00:43 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.1660, 7.0510 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Vinadio CN 19 644 644
Sambuco CN 19 92 736
Pietraporzio CN 20 77 813

Municipalities with at least 50000 inhabitants

An earthquake occurred to
47 Km SW of Cuneo (56081 inhabitants)
70 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
Reviewed
Rev100
ML 1.1 2023-07-25
04:00:43
44.1658 7.0512 10 2023-07-25
04:12:36
Sala Sismica INGV-Roma 119550351
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-07-25 04:00:43 ± 0.23
Latitude 44.1658 ± 0.0072
Longitude 7.0512 ± 0.0176
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 119550351

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1520
Semi-minor axis of confidence ellipse (meter) 560
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 243
Circular confidence region, given by single value of horizontal uncertainty (meter) 1520.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 252
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.68618
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 119550351
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-07-25 04:12:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ACATE.EHZ. 2023-07-25T04:02:58.86 3.0 negative manual Pn 4.13 0
IV.LATE.HHZ. 2023-07-25T04:02:48.76 3.0 undecidable manual Sg 13.38 0
SI.ABSI.HHZ. 2023-07-25T04:02:47.90 3.0 undecidable manual Sg 19.93 0
IV.STAL.HHZ. 2023-07-25T04:02:43.23 3.0 undecidable manual Sn -1.61 0
IV.MTRZ.HNZ. 2023-07-25T04:02:29.87 3.0 undecidable manual Sg 13.11 0
IV.LPEL.HHZ. 2023-07-25T04:02:27.55 3.0 undecidable manual Pg 20.65 0
IV.MRB1.HHZ. 2023-07-25T04:02:27.55 3.0 undecidable manual Pn 7.42 0
ST.ZIAN.EHZ. 2023-07-25T04:02:25.80 3.0 undecidable manual Sn -0.94 0
ST.RONC.HNZ. 2023-07-25T04:02:24.60 3.0 undecidable manual Sg 15.43 0
OX.MARN.HHZ. 2023-07-25T04:02:23.40 3.0 undecidable manual Sn 7.53 0
IV.CSNT.HHZ. 2023-07-25T04:02:22.58 3.0 undecidable manual Sn 3.94 0
ST.GAGG.HHZ. 2023-07-25T04:02:19.26 3.0 undecidable manual Sn 3.82 0
OX.MPRI.HHZ. 2023-07-25T04:02:08.64 3.0 undecidable manual Pg 19.200001 0
IV.FOSV.EHZ. 2023-07-25T04:02:05.93 3.0 negative manual Pg 18.84 0
IV.BDI.HHZ. 2023-07-25T04:02:04.23 3.0 undecidable manual Sn 1.11 0
GU.POPM.HHZ. 2023-07-25T04:02:02.95 3.0 undecidable manual Sn -3.04 0
OX.PLRO.HHZ. 2023-07-25T04:02:00.60 3.0 undecidable manual Pn 8.36 0
IV.NARO.HHZ. 2023-07-25T04:01:51.75 3.0 undecidable manual Pn 7.57 0
SI.ABSI.HHZ. 2023-07-25T04:01:42.25 3.0 negative manual Pn 4.73 0
IV.RIBO.EHZ.01 2023-07-25T04:01:37.77 3.0 undecidable manual Pn 5.02 0
IV.FNVD.HHZ. 2023-07-25T04:01:34.75 3.0 undecidable manual Pn 6.27 0
IV.BDI.HHZ. 2023-07-25T04:01:29.65 3.0 undecidable manual Pn 6.09 0
GU.POPM.HHZ. 2023-07-25T04:01:25.94 3.0 positive manual Pn 0.77 0
GU.GSCL.HHZ. 2023-07-25T04:01:20.46 3.0 undecidable manual Pn -2.49 0
GU.BHB.HHZ. 2023-07-25T04:01:06.29 0.6 undecidable manual S 13 76.1682 50 0.1 61
FR.SAOF.HHZ.00 2023-07-25T04:00:57.61 0.6 undecidable manual S 116 44.7219 50 -0.18 63
GU.BHB.HHZ. 2023-07-25T04:00:56.84 0.6 undecidable manual P 13 76.1682 50 0.35 58
GU.PZZ.HHE. 2023-07-25T04:00:55.75 0.6 undecidable manual S 8 38.1285 50 -0.29 63
GU.GBOS.HHZ. 2023-07-25T04:00:54.86 0.6 undecidable manual P 82 63.2922 50 0.35 59
GU.MGRO.HHE. 2023-07-25T04:00:54.51 0.6 undecidable manual P 103 61.7937 50 0.22 61
GU.STV.HHZ. 2023-07-25T04:00:52.19 0.6 undecidable manual S 68 23.5542 50 0.03 68
FR.SAOF.HHZ.00 2023-07-25T04:00:51.51 0.3 negative manual P 116 44.7219 50 -0.14 96
GU.PZZ.HHE. 2023-07-25T04:00:50.48 0.6 undecidable manual P 8 38.1285 50 -0.15 64
GU.ENR.HHZ. 2023-07-25T04:00:49.44 0.3 positive manual P 76 30.0477 50 0.06 100
GU.STV.HHZ. 2023-07-25T04:00:48.24 0.3 negative manual P 68 23.5542 50 -0.15 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.STV.HHN. ML:0.9 0.000048549999999999994 0.22 AML other m 2023-07-25T04:00:52.45
GU.ENR.HHN. ML:0.9 0.00003958719 0.2208 AML other m 2023-07-25T04:00:56.35
GU.STV.HHE. ML:0.7 0.000028397315 0.2624 AML other m 2023-07-25T04:00:53.65
FR.SAOF.HHE.00 ML:1.2 0.00005135000000000001 0.76 AML other m 2023-07-25T04:00:58.60
FR.SAOF.HHN.00 ML:1.4 0.00007903068500000001 0.3808 AML other m 2023-07-25T04:00:58.20
GU.ENR.HHE. ML:0.9 0.000036874135 0.16 AML other m 2023-07-25T04:00:58.36
GU.BHB.HHE. ML:1.2 0.000027238400000000003 0.32 AML other m 2023-07-25T04:01:07.80
GU.BHB.HHN. ML:1.4 0.00003645 0.72 AML other m 2023-07-25T04:01:07.50
GU.GBOS.HHE. ML:0.0 0.000017232855 0.3392 AML other m 2023-07-25T04:01:10.19
GU.GBOS.HHN. ML:0.0 0.000019362139999999998 0.48 AML other m 2023-07-25T04:01:08.32
GU.IMI.HHE. ML:0.0 0.00019561210000000002 0.1408 AML other m 2023-07-25T04:01:24.51
GU.IMI.HHN. ML:0.0 0.00017556415 0.1376 AML other m 2023-07-25T04:01:24.43
GU.BHB.HNE. ML:0.0 0.00004324378 1.2704 AML other m 2023-07-25T04:01:00.61
GU.BHB.HNN. ML:0.0 0.00003567485 0.2208 AML other m 2023-07-25T04:01:07.39
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