Earthquake with magnitude of ML 1.1 on date 19-05-2022 and time 23:34:51 (Italy) in region 1 km E Valgrana (CN)

A magnitude ML 1.1 earthquake occured in region: 1 km E Valgrana (CN), on

  • 19-05-2022 21:34:51 (UTC)
  • 19-05-2022 23:34:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.4090, 7.3980 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
Valgrana CN 1 786 786
Caraglio CN 3 6836 7622
Bernezzo CN 4 4104 11726
Montemale di Cuneo CN 4 241 11967
Monterosso Grana CN 6 505 12472
Cervasca CN 6 5013 17485
Rittana CN 6 109 17594
Dronero CN 7 7035 24629
Valloriate CN 8 109 24738
Vignolo CN 8 2600 27338
Roccasparvera CN 8 741 28079
Gaiola CN 8 582 28661
Villar San Costanzo CN 9 1547 30208
Roccabruna CN 9 1585 31793
Pradleves CN 9 250 32043
Moiola CN 10 234 32277
Borgo San Dalmazzo CN 11 12468 44745
Cartignano CN 12 190 44935
Cuneo CN 12 56081 101016
Roccavione CN 12 2761 103777
Demonte CN 13 2003 105780
Busca CN 13 10181 115961
San Damiano Macra CN 14 430 116391
Valdieri CN 15 935 117326
Castelmagno CN 15 66 117392
Boves CN 15 9835 127227
Tarantasca CN 15 2122 129349
Rossana CN 15 908 130257
Robilante CN 16 2306 132563
Valmala CN 16 52 132615
Roaschia CN 16 107 132722
Venasca CN 17 1437 134159
Aisone CN 18 248 134407
Melle CN 18 292 134699
Brossasco CN 18 1084 135783
Piasco CN 19 2774 138557
Entracque CN 19 774 139331
Centallo CN 19 6954 146285
Costigliole Saluzzo CN 19 3375 149660
Villafalletto CN 19 2925 152585
Celle di Macra CN 19 100 152685
Peveragno CN 20 5543 158228
Castelletto Stura CN 20 1351 159579
Isasca CN 20 76 159655

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km W of Cuneo (56081 inhabitants)
70 Km SW of Moncalieri (57294 inhabitants)
72 Km NW of Sanremo (54807 inhabitants)
77 Km SW of Torino (890529 inhabitants)
84 Km SW of Asti (76202 inhabitants)
87 Km W of Savona (61345 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 1.1 2022-05-19
21:34:51
44.4087 7.3983 11 2022-05-19
21:38:48
Sala Sismica INGV-Roma 104883881
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-05-19 21:34:51 ± 0.11
Latitude 44.4087 ± 0.0063
Longitude 7.3983 ± 0.0151
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 104883881

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1200
Semi-minor axis of confidence ellipse (meter) 590
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 252
Circular confidence region, given by single value of horizontal uncertainty (meter) 1200.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 121
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.17177
Epicentral distance of station farthest from the epicenter (degree) 0.63312
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:1.1

Field Value
Value 1.1
Uncertainty 0.5
Num. used stations 4
Type of magnitude ML
Reference to an origin 104883881
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-05-19 21:38:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
FR.SAOF.HHE. 2022-05-19T21:35:06.12 0.6 undecidable manual S 165 0.4371 50 -0.62 43
GU.BHB.HHZ. 2022-05-19T21:35:06.41 0.3 undecidable manual S 347 0.4371 50 -0.34 70
GU.CANO.HHZ. 2022-05-19T21:35:03.93 0.6 negative manual P 108 0.6331 50 0.37 45
GU.PZZ.HHZ. 2022-05-19T21:35:00.56 0.6 undecidable manual S 296 0.2239 50 0.13 51
FR.SAOF.HHE. 2022-05-19T21:35:00.19 0.1 undecidable manual P 165 0.4371 50 -0.02 100
GU.BHB.HHZ. 2022-05-19T21:35:00.03 0.6 undecidable manual P 347 0.4371 50 -0.19 48
GU.GBOS.HHZ. 2022-05-19T21:34:59.02 0.6 positive manual P 118 0.3570 50 0.17 49
GU.STV.HHZ. 2022-05-19T21:34:58.66 0.6 undecidable manual S 198 0.1718 50 -0.22 51
GU.ENR.HHZ. 2022-05-19T21:34:58.83 0.6 undecidable manual S 175 0.1799 50 -0.29 50
GU.PZZ.HHZ. 2022-05-19T21:34:57.09 1.0 undecidable manual P 296 0.2239 50 0.52 23
GU.ENR.HHZ. 2022-05-19T21:34:56.11 0.3 undecidable manual P 175 0.1799 50 0.29 75
GU.STV.HHZ. 2022-05-19T21:34:56.09 0.6 positive manual P 198 0.1718 50 0.42 48
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.STV.HHE. ML:0.9 0.0000567 0.08 AML other m 2022-05-19T21:34:58.68
GU.ENR.HHE. ML:1.6 0.0003115 0.06 AML other m 2022-05-19T21:34:58.82
GU.STV.HHN. ML:0.4 0.00001865 0.2 AML other m 2022-05-19T21:34:58.73
GU.ENR.HHN. ML:1.3 0.00013700000000000002 0.06 AML other m 2022-05-19T21:34:59.07
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