Earthquake with magnitude of ML 0.8 on date 26-06-2022 and time 01:31:46 (UTC) in region 3 km SW Frassino (CN)

A magnitude ML 0.8 earthquake occured in region: 3 km SW Frassino (CN), on

  • 26-06-2022 01:31:46 (UTC)
  • 26-06-2022 03:31:46 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.5490, 7.2610 at 13 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
Frassino CN 3 265 265
Melle CN 5 292 557
San Damiano Macra CN 7 430 987
Sampeyre CN 7 1022 2009
Valmala CN 7 52 2061
Cartignano CN 8 190 2251
Macra CN 8 59 2310
Brossasco CN 8 1084 3394
Celle di Macra CN 10 100 3494
Roccabruna CN 10 1585 5079
Isasca CN 11 76 5155
Venasca CN 11 1437 6592
Gambasca CN 11 371 6963
Stroppo CN 12 103 7066
Sanfront CN 12 2395 9461
Villar San Costanzo CN 12 1547 11008
Dronero CN 12 7035 18043
Martiniana Po CN 12 734 18777
Brondello CN 13 290 19067
Rifreddo CN 13 1078 20145
Elva CN 14 97 20242
Rossana CN 14 908 21150
Pradleves CN 15 250 21400
Montemale di Cuneo CN 15 241 21641
Oncino CN 15 76 21717
Pagno CN 15 585 22302
Paesana CN 15 2784 25086
Revello CN 16 4262 29348
Piasco CN 16 2774 32122
Casteldelfino CN 16 157 32279
Castelmagno CN 16 66 32345
Castellar CN 16 295 32640
Monterosso Grana CN 16 505 33145
Marmora CN 17 68 33213
Ostana CN 17 83 33296
Busca CN 17 10181 43477
Envie CN 17 2074 45551
Canosio CN 18 80 45631
Prazzo CN 18 170 45801
Costigliole Saluzzo CN 18 3375 49176
Valgrana CN 18 786 49962
Verzuolo CN 19 6459 56421
Crissolo CN 19 168 56589
Manta CN 19 3787 60376
Bellino CN 20 109 60485
Caraglio CN 20 6836 67321

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km NW of Cuneo (56081 inhabitants)
61 Km SW of Moncalieri (57294 inhabitants)
67 Km SW of Torino (890529 inhabitants)
84 Km W of Asti (76202 inhabitants)
91 Km NW of Sanremo (54807 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 0.8 2022-06-26
01:31:46
44.5487 7.2608 13 2022-06-26
01:59:58
Sala Sismica INGV-Roma 106496791
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-06-26 01:31:46 ± 0.1
Latitude 44.5487 ± 0.0054
Longitude 7.2608 ± 0.0088
Depth (km) 13 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 106496791

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 689
Semi-minor axis of confidence ellipse (meter) 130
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 60
Circular confidence region, given by single value of horizontal uncertainty (meter) 690.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 90
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.91461
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 13
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.4
Num. used stations 7
Type of magnitude ML
Reference to an origin 106496791
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-06-26 01:59:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.TRAV.HHZ. 2022-06-26T01:32:24.74 3.0 undecidable manual P 0
GU.PCP.HHE. 2022-06-26T01:32:16.63 0.6 undecidable manual S 90 0.9146 91 0.31 43
IV.QLNO.HHE. 2022-06-26T01:32:13.51 0.6 undecidable manual S 106 0.8058 92 0.42 43
GU.CANO.HHE. 2022-06-26T01:32:12.13 0.6 undecidable manual S 116 0.7761 92 -0.08 45
GU.RORO.HHZ. 2022-06-26T01:32:10.11 0.1 undecidable manual S 127 0.7222 92 -0.5 83
GU.MGRO.HHE. 2022-06-26T01:32:08.48 0.6 undecidable manual S 142 0.6394 92 0.32 45
GU.BNI.HHZ. 2022-06-26T01:32:08.03 3.0 undecidable manual S 0
FR.SAOF.HHE.00 2022-06-26T01:32:06.62 0.3 undecidable manual S 160 0.5998 92 -0.37 66
GU.PCP.HHE. 2022-06-26T01:32:04.32 0.1 undecidable manual P 90 0.9146 91 0.5 83
GU.GBOS.HHZ. 2022-06-26T01:32:03.87 0.3 undecidable manual S 126 0.5153 93 -0.6 63
GU.RRL.HHE. 2022-06-26T01:32:03.72 0.1 undecidable manual S 318 0.5000 93 -0.31 89
GU.CANO.HHE. 2022-06-26T01:32:01.76 0.3 undecidable manual P 116 0.7761 92 0.31 66
IV.QLNO.HHE. 2022-06-26T01:32:01.65 0.6 undecidable manual P 106 0.8058 92 -0.31 43
GU.RORO.HHZ. 2022-06-26T01:32:00.58 0.1 undecidable manual P 127 0.7222 92 0.06 94
GU.MGRO.HHE. 2022-06-26T01:31:59.51 0.1 undecidable manual P 142 0.6394 92 0.4 90
FR.SAOF.HHE.00 2022-06-26T01:31:58.82 0.3 undecidable manual P 160 0.5998 92 0.39 68
GU.RSP.HHE. 2022-06-26T01:31:58.02 1.0 undecidable manual P 0 0.5989 92 -0.4 21
GU.ENR.HHZ. 2022-06-26T01:31:58.83 0.3 undecidable manual S 161 0.3381 95 -0.42 69
GU.RRL.HHE. 2022-06-26T01:31:57.21 0.1 undecidable manual P 318 0.5000 93 0.48 92
GU.GBOS.HHZ. 2022-06-26T01:31:57.08 0.1 undecidable manual P 126 0.5153 93 0.1 98
GU.STV.HHZ. 2022-06-26T01:31:57.95 0.3 undecidable manual S 171 0.3067 96 -0.37 70
GU.BHB.HHZ. 2022-06-26T01:31:56.94 0.1 undecidable manual S 0 0.2869 97 -0.79 77
GU.STV.HHZ. 2022-06-26T01:31:53.46 1.0 undecidable manual P 171 0.3067 96 0.03 25
GU.ENR.HHZ. 2022-06-26T01:31:53.93 0.6 undecidable manual P 161 0.3381 95 -0.03 50
GU.BHB.HHZ. 2022-06-26T01:31:53.08 0.6 undecidable manual P 0 0.2869 97 0 50
GU.PZZ.HHZ. 2022-06-26T01:31:52.82 0.3 undecidable manual S 248 0.1115 124 0.05 79
GU.PZZ.HHZ. 2022-06-26T01:31:50.62 0.1 positive manual P 248 0.1115 124 0.4 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.PZZ.HHE. ML:1.2 0.0001650072 0.22 AML other m 2022-06-26T01:31:53.45
GU.PZZ.HHN. ML:1.4 0.00023999999999999998 0.12 AML other m 2022-06-26T01:31:53.41
GU.BHB.HHE. ML:0.4 0.0000080378695 0.08 AML other m 2022-06-26T01:31:58.25
GU.STV.HHE. ML:0.6 0.0000141852335 0.08 AML other m 2022-06-26T01:31:58.06
GU.STV.HHN. ML:0.4 0.0000109848244 0.1 AML other m 2022-06-26T01:31:58.04
GU.ENR.HHE. ML:1.1 0.00004628235 0.08 AML other m 2022-06-26T01:31:59.07
GU.ENR.HHN. ML:0.8 0.00002417515 0.06 AML other m 2022-06-26T01:31:59.43
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