Earthquake with magnitude of ML 0.8 on date 04-09-2023 and time 03:45:39 (UTC) in region 5 km E Novalesa (TO)

A magnitude ML 0.8 earthquake occured in region: 5 km E Novalesa (TO), on

  • 04-09-2023 03:45:39 (UTC)
  • 04-09-2023 05:45:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 45.1900, 7.0770 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
Novalesa TO 5 534 534
Mompantero TO 6 659 1193
Venaus TO 6 907 2100
Susa TO 6 6466 8566
Giaglione TO 7 631 9197
Moncenisio TO 8 36 9233
Meana di Susa TO 8 826 10059
Bussoleno TO 8 6094 16153
Mattie TO 8 687 16840
Gravere TO 8 692 17532
Chianocco TO 9 1675 19207
San Giorio di Susa TO 10 1024 20231
Bruzolo TO 11 1524 21755
Chiomonte TO 11 916 22671
Usseglio TO 12 209 22880
San Didero TO 13 551 23431
Villar Focchiardo TO 15 2042 25473
Borgone Susa TO 15 2229 27702
Exilles TO 15 273 27975
Usseaux TO 16 186 28161
Balme TO 17 115 28276
Fenestrelle TO 17 544 28820
Lemie TO 18 179 28999
Sant'Antonino di Susa TO 18 4306 33305
Vaie TO 19 1458 34763
Salbertrand TO 20 596 35359

Municipalities with at least 50000 inhabitants

An earthquake occurred to
49 Km W of Torino (890529 inhabitants)
52 Km W of Moncalieri (57294 inhabitants)
94 Km W of Asti (76202 inhabitants)
96 Km NW of Cuneo (56081 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 0.8 2023-09-04
03:45:39
45.1902 7.0772 10 2023-09-04
04:53:32
Sala Sismica INGV-Roma 120725201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-09-04 03:45:39 ± 0.26
Latitude 45.1902 ± 0.0117
Longitude 7.0772 ± 0.0217
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 120725201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1700
Semi-minor axis of confidence ellipse (meter) 1300
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 269
Circular confidence region, given by single value of horizontal uncertainty (meter) 1700.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 151
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.47
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.68348
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:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 120725201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-09-04 04:53:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.CANO.HHZ. 2023-09-04T03:46:20.79 3.0 undecidable manual S -0.09 0
GU.CIRO.HHZ. 2023-09-04T03:45:58.13 0.1 undecidable manual S 40 59.5959 50 -0.14 97
GU.PZZ.HHZ. 2023-09-04T03:45:53.57 1.0 negative manual P 178 75.8685 50 0.64 21
GU.TRAV.HHZ. 2023-09-04T03:45:51.56 0.1 undecidable manual P 55 63.1923 50 0.59 86
GU.CIRO.HHZ. 2023-09-04T03:45:50.73 0.1 undecidable manual P 40 59.5959 50 0.32 93
GU.LSD.HHZ. 2023-09-04T03:45:49.84 0.1 undecidable manual S 8 30.2475 50 -0.59 91
GU.BHB.HHZ. 2023-09-04T03:45:47.88 3.0 positive manual P 0.15 0
GU.LSD.HHZ. 2023-09-04T03:45:46.13 0.1 undecidable manual P 8 30.2475 50 0.25 100
GU.RRL.HHZ. 2023-09-04T03:45:46.62 0.1 undecidable manual P 217 37.4292 50 -0.37 96
GU.RSP.HHZ. 2023-09-04T03:45:45.46 0.1 undecidable manual S 108 15.3735 123 -0.58 94
GU.RSP.HHZ. 2023-09-04T03:45:43.73 0.1 undecidable manual P 108 15.3735 123 0.38 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.RSP.HHN. ML:0.5 0.00003025 0.22 AML other m 2023-09-04T03:45:46.34
GU.RSP.HHE. ML:0.6 0.000032800000000000004 0.64 AML other m 2023-09-04T03:45:46.11
GU.LSD.HHE. ML:0.9 0.00003535 0.16 AML other m 2023-09-04T03:45:50.13
GU.LSD.HHN. ML:0.6 0.0000223 0.9 AML other m 2023-09-04T03:45:50.14
GU.PZZ.HHE. ML:1.1 0.0000178 1.58 AML other m 2023-09-04T03:46:02.13
GU.PZZ.HHN. ML:1.1 0.0000184 0.42 AML other m 2023-09-04T03:46:12.69
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