Earthquake with magnitude of ML 1.3 on date 25-04-2023 and time 06:11:24 (Italy) in region Confine Italia Francia (FRANCIA)

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

  • 25-04-2023 04:11:24 (UTC)
  • 25-04-2023 06:11:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 45.2080, 6.8000 at 4 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
Moncenisio TO 15 36 36
Exilles TO 16 273 309
Bardonecchia TO 16 3215 3524
Salbertrand TO 16 596 4120
Novalesa TO 17 534 4654
Chiomonte TO 17 916 5570
Venaus TO 18 907 6477
Giaglione TO 19 631 7108
Gravere TO 20 692 7800
Oulx TO 20 3307 11107

Municipalities with at least 50000 inhabitants

An earthquake occurred to
71 Km W of Torino (890529 inhabitants)
73 Km W of Moncalieri (57294 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 1.3 2023-04-25
04:11:24
45.2077 6.7998 5 2023-04-25
04:18:58
Sala Sismica INGV-Roma 116721511
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-25 04:11:24 ± 0.13
Latitude 45.2077 ± 0.0054
Longitude 6.7998 ± 0.0102
Depth (km) 5 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 116721511

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 780
Semi-minor axis of confidence ellipse (meter) 355
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 297
Circular confidence region, given by single value of horizontal uncertainty (meter) 780.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 122
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.17807
Epicentral distance of station farthest from the epicenter (degree) 0.73565
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 116721511
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-25 04:18:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.BHB.HHZ. 2023-04-25T04:11:42.08 0.3 undecidable manual S 139 55.0005 50 -0.65 61
GU.PZZ.HHZ. 2023-04-25T04:11:39.49 0.6 positive manual P 162 81.6516 50 0.51 41
GU.TRAV.HHZ. 2023-04-25T04:11:39.61 0.6 undecidable manual P 65 81.1521 50 0.71 38
RD.ORIF.BHE. 2023-04-25T04:11:38.56 0.1 undecidable manual P 246 78.8655 50 0 91
GU.REMY.HHE. 2023-04-25T04:11:38.02 0.6 undecidable manual P 21 75.1692 50 0.03 46
GU.RSP.HHZ. 2023-04-25T04:11:37.13 0.3 undecidable manual S 100 36.9297 97 0.07 73
GU.BLANC.HHE. 2023-04-25T04:11:37.40 0.3 undecidable manual P 8 71.373 50 0 69
IV.MRGE.HHZ. 2023-04-25T04:11:36.33 0.1 positive manual P 18 65.5899 50 -0.18 90
GU.LSD.HHZ. 2023-04-25T04:11:36.85 0.3 undecidable manual S 43 38.2284 97 -0.64 63
GU.RRL.HHZ. 2023-04-25T04:11:35.03 0.3 undecidable manual S 181 31.8459 98 -0.26 71
GU.BHB.HHZ. 2023-04-25T04:11:35.16 0.3 positive manual P 139 55.0005 50 0.29 67
GU.RSP.HHZ. 2023-04-25T04:11:32.18 0.6 positive manual P 100 36.9297 97 0.58 43
GU.LSD.HHZ. 2023-04-25T04:11:31.98 0.1 undecidable manual P 43 38.2284 97 0.13 96
MN.BNI.HHZ. 2023-04-25T04:11:30.92 0.3 undecidable manual S 209 19.7691 103 -0.25 72
GU.RRL.HHZ. 2023-04-25T04:11:30.79 0.3 undecidable manual P 181 31.8459 98 0.21 72
MN.BNI.HHZ. 2023-04-25T04:11:28.28 0.1 undecidable manual P 209 19.7691 103 0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.BNI.HHE. ML:1.2 0.000118 0.38 AML other m 2023-04-25T04:11:31.59
MN.BNI.HNE. ML:1.1 0.00011649999999999999 0.38 AML other m 2023-04-25T04:11:31.59
MN.BNI.HHN. ML:1.2 0.0001195 0.5 AML other m 2023-04-25T04:11:31.72
MN.BNI.HNN. ML:1.1 0.00011350000000000001 0.5 AML other m 2023-04-25T04:11:31.48
GU.LSD.HHN. ML:1.3 0.0000816 1.88 AML other m 2023-04-25T04:11:36.04
GU.RRL.HHE. ML:1.1 0.0000641 1.24 AML other m 2023-04-25T04:11:37.12
GU.LSD.HHE. ML:1.3 0.00007769999999999999 0.44 AML other m 2023-04-25T04:11:37.67
GU.RSP.HHE. ML:0.8 0.00002495 1.58 AML other m 2023-04-25T04:11:38.06
GU.RRL.HHN. ML:1.1 0.0000645 0.64 AML other m 2023-04-25T04:11:38.76
GU.RSP.HHN. ML:0.7 0.00002095 1 AML other m 2023-04-25T04:11:38.02
GU.TRAV.HHN. ML:1.3 0.0000234 0.88 AML other m 2023-04-25T04:11:51.07
GU.PZZ.HHE. ML:1.6 0.00005625 0.68 AML other m 2023-04-25T04:11:51.94
GU.TRAV.HHE. ML:1.2 0.000021850000000000003 0.64 AML other m 2023-04-25T04:11:52.38
GU.PZZ.HHN. ML:1.6 0.00004935000000000001 1.2 AML other m 2023-04-25T04:11:55.01
GU.RSP.HNN. ML:1.8 0.00022950000000000002 1.04 AML other m 2023-04-25T04:11:55.11
GU.RSP.HNE. ML:1.7 0.00020725 1.12 AML other m 2023-04-25T04:11:55.10
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