Earthquake with magnitude of ML 1.3 on date 20-01-2022 and time 21:49:07 (Italy) in region 3 km E Massello (TO)

A magnitude ML 1.3 earthquake occured in region: 3 km E Massello (TO), on

  • 20-01-2022 20:49:07 (UTC)
  • 20-01-2022 21:49:07 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.9530, 7.0880 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
Massello TO 3 51 51
Perrero TO 3 659 710
Salza di Pinerolo TO 3 75 785
Roure TO 6 848 1633
Prali TO 8 246 1879
Pomaretto TO 8 1009 2888
Perosa Argentina TO 8 3285 6173
Fenestrelle TO 10 544 6717
Inverso Pinasca TO 10 730 7447
Pinasca TO 11 3051 10498
Pramollo TO 11 258 10756
Usseaux TO 12 186 10942
Villar Perosa TO 13 4092 15034
San Germano Chisone TO 13 1854 16888
Pragelato TO 14 776 17664
Porte TO 16 1083 18747
Bobbio Pellice TO 16 563 19310
Angrogna TO 16 889 20199
Sestriere TO 17 929 21128
Villar Pellice TO 17 1076 22204
Prarostino TO 17 1273 23477
Sauze di Cesana TO 18 244 23721
Torre Pellice TO 18 4551 28272
San Pietro Val Lemina TO 19 1448 29720
Mattie TO 19 687 30407
Meana di Susa TO 19 826 31233
San Secondo di Pinerolo TO 19 3575 34808
Cantalupa TO 19 2553 37361
Roletto TO 19 2009 39370
Luserna San Giovanni TO 20 7395 46765
Coazze TO 20 3287 50052
Gravere TO 20 692 50744
Rorà TO 20 257 51001
Sauze d'Oulx TO 20 1109 52110

Municipalities with at least 50000 inhabitants

An earthquake occurred to
47 Km W of Moncalieri (57294 inhabitants)
49 Km W of Torino (890529 inhabitants)
72 Km NW of Cuneo (56081 inhabitants)
88 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 1.3 2022-01-20
20:49:07
44.9527 7.0885 11 2022-01-20
20:56:54
Sala Sismica INGV-Roma 99995491
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-01-20 20:49:07 ± 0.09
Latitude 44.9527 ± 0.0036
Longitude 7.0885 ± 0.0064
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 99995491

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 460
Semi-minor axis of confidence ellipse (meter) 274
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 255
Circular confidence region, given by single value of horizontal uncertainty (meter) 460.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 84
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 12
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) 0.60434
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.1
Num. used stations 10
Type of magnitude ML
Reference to an origin 99995491
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-01-20 20:56:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.SATI.HHZ. 2022-01-20T20:49:28.56 3.0 undecidable manual P 0.17 0
GU.GBOS.HHZ. 2022-01-20T20:49:26.31 3.0 undecidable manual P 0.78 0
GU.LSD.HHZ. 2022-01-20T20:49:24.98 1.0 undecidable manual S 4 0.5081 90 -0.14 24
IV.MRGE.HHZ. 2022-01-20T20:49:23.86 3.0 negative manual P 0.14 0
GU.ENR.HHZ. 2022-01-20T20:49:22.49 3.0 negative manual P -0.66 0
GU.CIRO.HHZ. 2022-01-20T20:49:22.04 3.0 negative manual P -0.13 0
GU.PZZ.HHZ. 2022-01-20T20:49:22.95 0.6 undecidable manual S 178 0.4461 91 -0.34 46
GU.STV.HHZ. 2022-01-20T20:49:22.58 3.0 undecidable manual P 0.04 0
IV.MONC.HHZ. 2022-01-20T20:49:19.39 1.0 undecidable manual P 78 0.6043 90 0.01 24
MN.BNI.HHZ. 2022-01-20T20:49:18.81 0.6 undecidable manual S 289 0.3067 91 -0.35 47
GU.LSD.HHZ. 2022-01-20T20:49:17.83 0.3 negative manual P 4 0.5081 90 0.11 71
GU.PZZ.HHZ. 2022-01-20T20:49:16.87 0.6 undecidable manual P 178 0.4461 91 0.2 47
GU.RRL.HHZ. 2022-01-20T20:49:16.47 0.6 undecidable manual S 262 0.2131 92 0.07 51
GU.BHB.HHZ. 2022-01-20T20:49:15.09 0.6 undecidable manual S 133 0.1700 93 -0.03 52
MN.BNI.HHZ. 2022-01-20T20:49:14.69 0.6 positive manual P 289 0.3067 91 0.41 46
GU.RRL.HHZ. 2022-01-20T20:49:12.72 1.0 undecidable manual P 262 0.2131 92 0.03 26
GU.RSP.HHZ. 2022-01-20T20:49:12.87 0.1 negative manual P 32 0.2320 91 -0.14 100
GU.BHB.HHZ. 2022-01-20T20:49:12.13 1.0 undecidable manual P 133 0.1700 93 0.19 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.BHB.HHE. ML:1.2 0.00010255 0.08 AML other m 2022-01-20T20:49:14.53
GU.BHB.HNN. ML:1.2 0.0001285 1.36 AML other m 2022-01-20T20:49:14.26
GU.BHB.HHN. ML:1.3 0.0001505 1.36 AML other m 2022-01-20T20:49:14.26
GU.BHB.HNE. ML:1.2 0.0001225 0.56 AML other m 2022-01-20T20:49:15.53
GU.RSP.HHE. ML:1.1 0.0000713 1.3 AML other m 2022-01-20T20:49:16.68
GU.RSP.HHN. ML:1.1 0.00007495 0.8 AML other m 2022-01-20T20:49:18.41
GU.LSD.HHN. ML:1.3 0.000043450000000000006 0.3 AML other m 2022-01-20T20:49:24.19
GU.LSD.HHE. ML:1.4 0.000055650000000000004 0.84 AML other m 2022-01-20T20:49:24.43
GU.PZZ.HHN. ML:1.5 0.00008665 0.88 AML other m 2022-01-20T20:49:24.37
GU.PZZ.HHE. ML:1.5 0.00007445 0.78 AML other m 2022-01-20T20:49:25.99
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