Earthquake with magnitude of ML 0.4 on date 25-01-2022 and time 23:50:56 (Italy) in region 3 km S Castelmagno (CN)

A magnitude ML 0.4 earthquake occured in region: 3 km S Castelmagno (CN), on

  • 25-01-2022 22:50:56 (UTC)
  • 25-01-2022 23:50:56 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.3860, 7.2200 at 8 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
Castelmagno CN 3 66 66
Pradleves CN 6 250 316
Aisone CN 8 248 564
Monterosso Grana CN 9 505 1069
Vinadio CN 9 644 1713
Demonte CN 10 2003 3716
Celle di Macra CN 11 100 3816
Cartignano CN 12 190 4006
San Damiano Macra CN 12 430 4436
Sambuco CN 12 92 4528
Marmora CN 13 68 4596
Macra CN 13 59 4655
Valgrana CN 13 786 5441
Canosio CN 13 80 5521
Valloriate CN 13 109 5630
Montemale di Cuneo CN 14 241 5871
Roccabruna CN 14 1585 7456
Dronero CN 15 7035 14491
Rittana CN 15 109 14600
Stroppo CN 15 103 14703
Moiola CN 15 234 14937
Pietraporzio CN 16 77 15014
Gaiola CN 16 582 15596
Villar San Costanzo CN 17 1547 17143
Prazzo CN 17 170 17313
Caraglio CN 17 6836 24149
Bernezzo CN 17 4104 28253
Roccasparvera CN 18 741 28994
Valdieri CN 19 935 29929
Cervasca CN 20 5013 34942
Argentera CN 20 83 35025

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km W of Cuneo (56081 inhabitants)
77 Km NW of Sanremo (54807 inhabitants)
78 Km SW of Moncalieri (57294 inhabitants)
85 Km SW of Torino (890529 inhabitants)
97 Km SW 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 0.4 2022-01-25
22:50:56
44.3855 7.2195 8 2022-01-25
23:15:50
Sala Sismica INGV-Roma 100180871
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-01-25 22:50:56 ± 0.13
Latitude 44.3855 ± 0.0090
Longitude 7.2195 ± 0.0176
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 100180871

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1588
Semi-minor axis of confidence ellipse (meter) 233
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 236
Circular confidence region, given by single value of horizontal uncertainty (meter) 1590.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 178
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0.14209
Epicentral distance of station farthest from the epicenter (degree) 0.95868
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:0.4

Field Value
Value 0.4
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 100180871
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-01-25 23:15:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.PCP.HHE. 2022-01-25T22:51:28.71 0.3 undecidable manual S 80 0.9587 50 0.39 60
GU.CANO.HHE. 2022-01-25T22:51:21.72 0.3 undecidable manual S 103 0.7491 50 -0.41 62
GU.IMI.HHE. 2022-01-25T22:51:20.26 0.3 undecidable manual S 134 0.6772 50 0.27 65
GU.RORO.HHE. 2022-01-25T22:51:19.57 0.3 undecidable manual S 114 0.6646 50 -0.06 68
GU.RRL.HHE. 2022-01-25T22:51:17.95 0.3 undecidable manual S 330 0.6160 50 -0.23 67
GU.MGRO.HHE. 2022-01-25T22:51:15.44 0.3 undecidable manual S 129 0.5432 50 -0.58 62
GU.PCP.HHE. 2022-01-25T22:51:14.89 0.6 undecidable manual P 80 0.9587 50 -0.09 42
GU.GBOS.HHZ. 2022-01-25T22:51:13.80 0.6 undecidable manual S 108 0.4667 50 0.06 47
FR.SAOF.HHE.00 2022-01-25T22:51:12.87 0.3 undecidable manual S 149 0.4649 50 -0.84 56
GU.BHB.HHE. 2022-01-25T22:51:12.35 0.3 undecidable manual S 4 0.4506 50 -0.93 54
GU.CANO.HHE. 2022-01-25T22:51:11.28 0.6 undecidable manual P 103 0.7491 50 -0.12 44
GU.IMI.HHE. 2022-01-25T22:51:10.48 0.1 undecidable manual P 134 0.6772 50 0.31 86
GU.RORO.HHE. 2022-01-25T22:51:10.69 0.1 undecidable manual P 114 0.6646 50 0.73 75
GU.RRL.HHE. 2022-01-25T22:51:09.31 0.1 undecidable manual P 330 0.6160 50 0.19 89
GU.MGRO.HHE. 2022-01-25T22:51:08.10 0.1 undecidable manual P 129 0.5432 50 0.23 90
GU.GBOS.HHZ. 2022-01-25T22:51:07.16 0.1 undecidable manual P 108 0.4667 50 0.6 83
FR.SAOF.HHE.00 2022-01-25T22:51:06.71 0.1 undecidable manual P 149 0.4649 50 0.17 93
GU.BHB.HHE. 2022-01-25T22:51:06.27 0.1 undecidable manual P 4 0.4506 50 -0.02 96
GU.ENR.HHZ. 2022-01-25T22:51:04.87 0.3 undecidable manual S 138 0.2113 108 -0.44 69
GU.STV.HHZ. 2022-01-25T22:51:03.01 0.3 undecidable manual S 151 0.1601 114 -0.46 69
GU.PZZ.HHZ. 2022-01-25T22:51:02.55 0.3 undecidable manual S 329 0.1421 116 -0.29 72
GU.ENR.HHZ. 2022-01-25T22:51:01.65 0.1 undecidable manual P 138 0.2113 108 -0.04 100
GU.PZZ.HHZ. 2022-01-25T22:51:00.51 0.1 undecidable manual P 329 0.1421 116 0.24 97
GU.STV.HHZ. 2022-01-25T22:51:00.85 0.1 undecidable manual P 151 0.1601 114 0.23 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.PZZ.HHN. ML:0.8 0.00005715000000000001 1.82 AML other m 2022-01-25T22:51:02.92
GU.PZZ.HHE. ML:0.8 0.00006309999999999999 0.62 AML other m 2022-01-25T22:51:03.32
GU.STV.HHE. ML:0.2 0.000013676607999999999 0.1024 AML other m 2022-01-25T22:51:03.31
GU.STV.HHN. ML:0.1 0.000012213405 0.1024 AML other m 2022-01-25T22:51:03.23
GU.ENR.HHE. ML:0.5 0.000022459464999999998 0.0512 AML other m 2022-01-25T22:51:05.78
GU.ENR.HHN. ML:0.5 0.000020969025000000004 0.0512 AML other m 2022-01-25T22:51:05.18
GU.GBOS.HHE. ML:0.3 0.000004743921500000001 0.1408 AML other m 2022-01-25T22:51:14.34
GU.GBOS.HHN. ML:0.3 0.00000597746075 0.192 AML other m 2022-01-25T22:51:14.11
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