Earthquake with magnitude of ML 1.0 on date 28-01-2023 and time 01:22:33 (Italy) in region 2 km S Meana di Susa (TO)

A magnitude ML 1.0 earthquake occured in region: 2 km S Meana di Susa (TO), on

  • 28-01-2023 00:22:33 (UTC)
  • 28-01-2023 01:22:33 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 45.1040, 7.0650 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
Meana di Susa TO 2 826 826
Susa TO 4 6466 7292
Mompantero TO 4 659 7951
Gravere TO 4 692 8643
Mattie TO 4 687 9330
Giaglione TO 6 631 9961
Chiomonte TO 7 916 10877
Usseaux TO 7 186 11063
Venaus TO 7 907 11970
Fenestrelle TO 8 544 12514
Bussoleno TO 8 6094 18608
San Giorio di Susa TO 9 1024 19632
Chianocco TO 10 1675 21307
Novalesa TO 10 534 21841
Exilles TO 11 273 22114
Bruzolo TO 11 1524 23638
San Didero TO 12 551 24189
Roure TO 13 848 25037
Villar Focchiardo TO 13 2042 27079
Moncenisio TO 13 36 27115
Pragelato TO 14 776 27891
Borgone Susa TO 14 2229 30120
Salbertrand TO 15 596 30716
Massello TO 16 51 30767
Sant'Antonino di Susa TO 16 4306 35073
Vaie TO 18 1458 36531
Salza di Pinerolo TO 18 75 36606
Sauze d'Oulx TO 18 1109 37715
Usseglio TO 19 209 37924
Pomaretto TO 19 1009 38933
Perrero TO 19 659 39592
Perosa Argentina TO 19 3285 42877
Coazze TO 19 3287 46164
Condove TO 19 4638 50802
Oulx TO 20 3307 54109

Municipalities with at least 50000 inhabitants

An earthquake occurred to
49 Km W of Torino (890529 inhabitants)
50 Km W of Moncalieri (57294 inhabitants)
88 Km NW of Cuneo (56081 inhabitants)
93 Km W of Asti (76202 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 1.0 2023-01-28
00:22:33
45.1042 7.0652 10 2023-01-28
00:49:23
Sala Sismica INGV-Roma 113842111
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-01-28 00:22:33 ± 0.21
Latitude 45.1042 ± 0.0126
Longitude 7.0652 ± 0.0166
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 113842111

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1600
Semi-minor axis of confidence ellipse (meter) 980
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 320
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) 141
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.41
Epicentral distance of station closest to the epicenter (degree) 0.14749
Epicentral distance of station farthest from the epicenter (degree) 0.59805
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 113842111
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-01-28 00:49:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.PZZ.HHZ. 2023-01-28T00:22:46.12 0.1 undecidable manual P 177 66.378 50 0.76 77
GU.BHB.HHZ. 2023-01-28T00:22:44.99 0.1 undecidable manual S 152 33.6441 50 -0.25 96
GU.RRL.HHZ. 2023-01-28T00:22:43.61 0.3 undecidable manual S 227 29.6481 50 -0.57 67
GU.LSD.HHZ. 2023-01-28T00:22:41.11 0.3 undecidable manual P 8 39.8268 50 -0.15 73
GU.BHB.HHZ. 2023-01-28T00:22:40.27 0.1 undecidable manual P 152 33.6441 50 -0.04 100
GU.RSP.HHZ. 2023-01-28T00:22:39.96 0.1 undecidable manual S 73 16.3725 121 -0.26 98
GU.RRL.HHZ. 2023-01-28T00:22:39.85 0.1 undecidable manual P 227 29.6481 50 0.16 98
GU.RSP.HHZ. 2023-01-28T00:22:37.70 0.1 undecidable manual P 73 16.3725 121 0.29 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.LSD.HHE. ML:1.0 0.0000373 1.72 AML other m 2023-01-28T00:22:46.05
GU.LSD.HHN. ML:0.9 0.0000299 0.3 AML other m 2023-01-28T00:22:46.10
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