Earthquake with magnitude of ML 0.9 on date 04-04-2022 and time 02:16:29 (Italy) in region 6 km SE Mattie (TO)

A magnitude ML 0.9 earthquake occured in region: 6 km SE Mattie (TO), on

  • 04-04-2022 00:16:29 (UTC)
  • 04-04-2022 02:16:29 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 45.0690, 7.1460 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
Mattie TO 6 687 687
San Giorio di Susa TO 7 1024 1711
Roure TO 8 848 2559
Bussoleno TO 8 6094 8653
Villar Focchiardo TO 8 2042 10695
Fenestrelle TO 8 544 11239
Meana di Susa TO 8 826 12065
Bruzolo TO 9 1524 13589
Chianocco TO 9 1675 15264
San Didero TO 9 551 15815
Usseaux TO 10 186 16001
Borgone Susa TO 10 2229 18230
Mompantero TO 11 659 18889
Susa TO 11 6466 25355
Sant'Antonino di Susa TO 11 4306 29661
Gravere TO 12 692 30353
Vaie TO 12 1458 31811
Coazze TO 12 3287 35098
Perosa Argentina TO 13 3285 38383
Pomaretto TO 13 1009 39392
Giaglione TO 13 631 40023
Chiomonte TO 14 916 40939
Massello TO 14 51 40990
Condove TO 14 4638 45628
Venaus TO 14 907 46535
Inverso Pinasca TO 15 730 47265
Chiusa di San Michele TO 15 1647 48912
Perrero TO 15 659 49571
Valgioie TO 15 951 50522
Pinasca TO 15 3051 53573
Caprie TO 16 2086 55659
Salza di Pinerolo TO 16 75 55734
Giaveno TO 17 16455 72189
Novalesa TO 17 534 72723
Pragelato TO 17 776 73499
Sant'Ambrogio di Torino TO 17 4755 78254
Exilles TO 17 273 78527
Villar Perosa TO 18 4092 82619
Pramollo TO 19 258 82877
Usseglio TO 19 209 83086
Villar Dora TO 20 2932 86018
Avigliana TO 20 12516 98534
Moncenisio TO 20 36 98570

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km W of Torino (890529 inhabitants)
43 Km W of Moncalieri (57294 inhabitants)
82 Km NW of Cuneo (56081 inhabitants)
85 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 0.9 2022-04-04
00:16:29
45.0688 7.1463 10 2022-04-04
01:03:54
Sala Sismica INGV-Roma 102751721
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-04-04 00:16:29 ± 0.33
Latitude 45.0688 ± 0.0180
Longitude 7.1463 ± 0.0229
Depth (km) 10 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 102751721

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2175
Semi-minor axis of confidence ellipse (meter) 1402
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 215
Circular confidence region, given by single value of horizontal uncertainty (meter) 2180.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 131
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.49
Epicentral distance of station closest to the epicenter (degree) 0.24731
Epicentral distance of station farthest from the epicenter (degree) 0.70327
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 102751721
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-04-04 01:03:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MRGE.HHZ. 2022-04-04T00:16:52.25 0.6 undecidable manual S 355 0.7033 50 -0.83 33
GU.CIRO.HHE. 2022-04-04T00:16:49.33 0.6 undecidable manual S 29 0.6097 50 -0.99 33
GU.LSD.HHZ. 2022-04-04T00:16:43.02 0.6 undecidable manual S 359 0.3903 50 -0.81 36
IV.MRGE.HHZ. 2022-04-04T00:16:43.88 0.1 undecidable manual P 355 0.7033 50 0.74 81
GU.PZZ.HHZ. 2022-04-04T00:16:41.10 0.3 undecidable manual P 182 0.5621 50 0.37 72
MN.BNI.HHZ. 2022-04-04T00:16:41.90 0.6 undecidable manual S 267 0.3310 50 -0.16 41
GU.CIRO.HHE. 2022-04-04T00:16:41.64 0.3 undecidable manual P 29 0.6097 50 0.1 72
GU.RRL.HHZ. 2022-04-04T00:16:40.84 0.6 undecidable manual S 240 0.2923 50 -0.06 46
GU.BHB.HHZ. 2022-04-04T00:16:38.62 0.6 undecidable manual S 160 0.2473 50 -0.96 41
GU.LSD.HHZ. 2022-04-04T00:16:38.06 0.1 negative manual P 359 0.3903 50 0.27 98
MN.BNI.HHZ. 2022-04-04T00:16:37.32 0.1 undecidable manual P 267 0.3310 50 0.55 97
GU.RRL.HHZ. 2022-04-04T00:16:36.63 0.1 undecidable manual P 240 0.2923 50 0.53 97
GU.BHB.HHZ. 2022-04-04T00:16:35.41 0.1 undecidable manual P 160 0.2473 50 0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.BHB.HHN. ML:1.2 0.0000802 0.32 AML other m 2022-04-04T00:16:39.20
GU.BHB.HHE. ML:0.9 0.00004165 0.32 AML other m 2022-04-04T00:16:39.40
GU.LSD.HHE. ML:0.9 0.000023849999999999997 0.94 AML other m 2022-04-04T00:16:43.44
GU.LSD.HHN. ML:0.7 0.00001675 1.38 AML other m 2022-04-04T00:16:43.97
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