Earthquake with magnitude of ML 1.0 on date 26-01-2022 and time 23:36:30 (UTC) in region 2 km NE Villar Perosa (TO)

A magnitude ML 1.0 earthquake occured in region: 2 km NE Villar Perosa (TO), on

  • 26-01-2022 23:36:30 (UTC)
  • 27-01-2022 00:36:30 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.9400, 7.2600 at 11 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
Villar Perosa TO 2 4092 4092
Pinasca TO 3 3051 7143
Inverso Pinasca TO 4 730 7873
San Germano Chisone TO 5 1854 9727
Pramollo TO 5 258 9985
San Pietro Val Lemina TO 6 1448 11433
Perosa Argentina TO 6 3285 14718
Roletto TO 6 2009 16727
Cantalupa TO 6 2553 19280
Porte TO 6 1083 20363
Pomaretto TO 6 1009 21372
Frossasco TO 7 2864 24236
Pinerolo TO 8 35808 60044
Prarostino TO 8 1273 61317
San Secondo di Pinerolo TO 9 3575 64892
Cumiana TO 10 7826 72718
Angrogna TO 11 889 73607
Perrero TO 11 659 74266
Osasco TO 12 1141 75407
Roure TO 12 848 76255
Coazze TO 13 3287 79542
Bricherasio TO 13 4616 84158
Piscina TO 13 3388 87546
Torre Pellice TO 14 4551 92097
Giaveno TO 14 16455 108552
Luserna San Giovanni TO 14 7395 115947
Buriasco TO 14 1410 117357
Garzigliana TO 15 572 117929
Macello TO 15 1229 119158
Lusernetta TO 15 506 119664
Bibiana TO 16 3442 123106
Massello TO 16 51 123157
Campiglione Fenile TO 16 1390 124547
Salza di Pinerolo TO 16 75 124622
Trana TO 17 3877 128499
Valgioie TO 17 951 129450
Villar Pellice TO 17 1076 130526
Piossasco TO 17 18589 149115
Rorà TO 17 257 149372
Prali TO 17 246 149618
Airasca TO 18 3794 153412
Sangano TO 18 3707 157119
Vaie TO 18 1458 158577
Reano TO 18 1818 160395
Bobbio Pellice TO 18 563 160958
Sant'Antonino di Susa TO 19 4306 165264
Bruino TO 19 8639 173903
Chiusa di San Michele TO 19 1647 175550
Avigliana TO 19 12516 188066
Villar Focchiardo TO 19 2042 190108
Fenestrelle TO 19 544 190652
Cavour TO 20 5545 196197
Sant'Ambrogio di Torino TO 20 4755 200952
Scalenghe TO 20 3339 204291
Buttigliera Alta TO 20 6419 210710

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km W of Moncalieri (57294 inhabitants)
36 Km W of Torino (890529 inhabitants)
65 Km NW of Cuneo (56081 inhabitants)
75 Km W of Asti (76202 inhabitants)
Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
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 2022-01-26
23:36:30
44.9402 7.2602 11 2022-01-27
00:20:03
Sala Sismica INGV-Roma 100213631
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-01-26 23:36:30 ± 0.16
Latitude 44.9402 ± 0.0063
Longitude 7.2602 ± 0.0114
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 100213631

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 822
Semi-minor axis of confidence ellipse (meter) 599
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 261
Circular confidence region, given by single value of horizontal uncertainty (meter) 820.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 75
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.10432
Epicentral distance of station farthest from the epicenter (degree) 0.81119
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 100213631
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-01-27 00:20:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.GBOS.HHE. 2022-01-26T23:36:56.56 1.0 undecidable manual S 149 0.8112 90 -0.35 21
GU.CIRO.HHE. 2022-01-26T23:36:53.24 0.3 undecidable manual S 18 0.6961 90 -0.25 65
GU.STV.HHE. 2022-01-26T23:36:52.91 0.6 undecidable manual S 176 0.6961 90 -0.6 40
GU.TRAV.HHE. 2022-01-26T23:36:51.70 0.3 undecidable manual S 31 0.6664 90 -0.91 51
IV.MONC.HHZ. 2022-01-26T23:36:48.33 0.6 undecidable manual S 74 0.4901 90 0.94 37
GU.LSD.HHE. 2022-01-26T23:36:47.62 0.3 undecidable manual S 350 0.5270 90 -0.86 55
GU.GBOS.HHE. 2022-01-26T23:36:45.77 0.1 undecidable manual P 149 0.8112 90 0.06 88
GU.PZZ.HHE. 2022-01-26T23:36:45.61 0.3 undecidable manual S 193 0.4452 90 -0.47 66
MN.BNI.HHZ. 2022-01-26T23:36:45.38 0.3 undecidable manual S 285 0.4263 90 -0.12 72
GU.ENR.HHZ. 2022-01-26T23:36:44.28 0.3 undecidable manual P 171 0.7195 90 0.14 66
GU.TRAV.HHE. 2022-01-26T23:36:43.23 1.0 undecidable manual P 31 0.6664 90 -0.01 23
GU.CIRO.HHE. 2022-01-26T23:36:43.98 0.3 undecidable manual P 18 0.6961 90 0.23 65
GU.STV.HHE. 2022-01-26T23:36:43.39 0.1 undecidable manual P 176 0.6961 90 -0.36 85
GU.RRL.HHZ. 2022-01-26T23:36:42.83 0.3 undecidable manual S 267 0.3327 91 0.08 71
GU.LSD.HHE. 2022-01-26T23:36:41.37 0.1 undecidable manual P 350 0.5270 90 0.52 84
IV.MONC.HHZ. 2022-01-26T23:36:40.72 0.3 undecidable manual P 74 0.4901 90 0.5 65
GU.PZZ.HHE. 2022-01-26T23:36:39.89 0.1 undecidable manual P 193 0.4452 90 0.43 87
GU.RRL.HHZ. 2022-01-26T23:36:38.20 0.1 undecidable manual P 267 0.3327 91 0.66 81
MN.BNI.HHZ. 2022-01-26T23:36:38.92 0.3 undecidable manual P 285 0.4263 90 -0.21 70
GU.RSP.HHZ. 2022-01-26T23:36:38.47 0.6 undecidable manual S 1 0.2077 91 -0.57 44
GU.RSP.HHZ. 2022-01-26T23:36:35.34 0.1 undecidable manual P 1 0.2077 91 -0.05 100
GU.BHB.HHZ. 2022-01-26T23:36:35.34 0.3 undecidable manual S 179 0.1043 113 -0.67 68
GU.BHB.HHZ. 2022-01-26T23:36:33.83 0.1 undecidable manual P 179 0.1043 113 0.18 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.BHB.HHE. ML:0.9 0.0000886 0.58 AML other m 2022-01-26T23:36:35.83
GU.BHB.HNN. ML:1.4 0.00024249999999999999 0.14 AML other m 2022-01-26T23:36:35.80
GU.BHB.HHN. ML:1.4 0.000258 0.14 AML other m 2022-01-26T23:36:35.80
GU.BHB.HNE. ML:0.9 0.00008985 1.54 AML other m 2022-01-26T23:36:36.82
GU.RRL.HHE. ML:0.6 0.000014409955500000001 1.0368 AML other m 2022-01-26T23:36:52.75
GU.RRL.HHN. ML:0.9 0.000031897200000000004 5.2864 AML other m 2022-01-26T23:36:49.05
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, http://terremoti.ingv.it/tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols scales with the calculated moment magnitude Mw.
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download