Earthquake with magnitude of ML 0.1 on date 08-08-2022 and time 15:54:16 (Italy) in region 4 km E Pragelato (TO)

A magnitude ML 0.1 earthquake occured in region: 4 km E Pragelato (TO), on

  • 08-08-2022 13:54:16 (UTC)
  • 08-08-2022 15:54:16 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.9990, 6.9930 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
Pragelato TO 4 776 776
Fenestrelle TO 6 544 1320
Usseaux TO 6 186 1506
Massello TO 7 51 1557
Salza di Pinerolo TO 8 75 1632
Sestriere TO 10 929 2561
Roure TO 11 848 3409
Sauze d'Oulx TO 11 1109 4518
Perrero TO 12 659 5177
Salbertrand TO 12 596 5773
Exilles TO 12 273 6046
Sauze di Cesana TO 12 244 6290
Prali TO 13 246 6536
Oulx TO 13 3307 9843
Chiomonte TO 14 916 10759
Gravere TO 14 692 11451
Meana di Susa TO 15 826 12277
Pomaretto TO 16 1009 13286
Susa TO 16 6466 19752
Giaglione TO 16 631 20383
Cesana Torinese TO 16 967 21350
Perosa Argentina TO 16 3285 24635
Mattie TO 16 687 25322
Mompantero TO 17 659 25981
Venaus TO 18 907 26888
Inverso Pinasca TO 19 730 27618
Pinasca TO 20 3051 30669
Bussoleno TO 20 6094 36763

Municipalities with at least 50000 inhabitants

An earthquake occurred to
55 Km W of Moncalieri (57294 inhabitants)
55 Km W of Torino (890529 inhabitants)
81 Km NW of Cuneo (56081 inhabitants)
96 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 0.1 2022-08-08
13:54:16
44.9987 6.9927 10 2022-08-08
14:04:44
Sala Sismica INGV-Roma 108286201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-08-08 13:54:16 ± 0.3
Latitude 44.9987 ± 0.0225
Longitude 6.9927 ± 0.0216
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 108286201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2660
Semi-minor axis of confidence ellipse (meter) 1410
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 337
Circular confidence region, given by single value of horizontal uncertainty (meter) 2660.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 170
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.56
Epicentral distance of station closest to the epicenter (degree) 0.16278
Epicentral distance of station farthest from the epicenter (degree) 0.72575
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

ML:0.1

Field Value
Value 0.1
Uncertainty 0.2
Num. used stations 5
Type of magnitude ML
Reference to an origin 108286201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-08-08 14:04:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.BHB.HHZ. 2022-08-08T13:54:26.07 0.3 undecidable manual S 130 0.2518 50 -0.55 68
GU.RSP.HHZ. 2022-08-08T13:54:25.91 0.3 undecidable manual S 52 0.2437 50 -0.48 70
GU.BHB.HHZ. 2022-08-08T13:54:23.01 0.1 undecidable manual P 130 0.2518 50 0.68 86
GU.RRL.HHZ. 2022-08-08T13:54:23.20 0.3 undecidable manual S 242 0.1628 119 -0.44 71
GU.CIRO.HHZ. 2022-08-08T13:54:22.99 0.6 positive manual P 0.7258 -7.46 0
GU.RSP.HHZ. 2022-08-08T13:54:22.50 0.3 positive manual P 52 0.2437 50 0.3 73
GU.RRL.HHZ. 2022-08-08T13:54:20.83 0.1 negative manual P 242 0.1628 119 0.22 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.RRL.HHE. ML:-0.2 0.000003405457 0.3584 AML other m 2022-08-08T13:54:24.55
GU.RRL.HHN. ML:0.0 0 1.3568 AML other m 2022-08-08T13:54:23.34
GU.RSP.HHE. ML:0.0 0.0000074663524999999994 0.096 AML other m 2022-08-08T13:54:26.40
GU.RSP.HHN. ML:0.0 0.000006520931 0.1024 AML other m 2022-08-08T13:54:26.40
GU.BHB.HHE. ML:0.3 0.000008842727 0.0768 AML other m 2022-08-08T13:54:26.17
GU.BHB.HHN. ML:0.3 0.0000111679845 0.096 AML other m 2022-08-08T13:54:26.13
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
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download