Earthquake with magnitude of ML 2.3 on date 19-11-2020 and time 11:21:55 (UTC) in region 1 km W Montemale di Cuneo (CN)

A magnitude ML 2.3 earthquake occured in region: 1 km W Montemale di Cuneo (CN), on

  • 19-11-2020 11:21:55 (UTC)
  • 19-11-2020 12:21:55 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.44, 7.36 at 16 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
Montemale di Cuneo CN 1 241 241
Dronero CN 3 7035 7276
Valgrana CN 4 786 8062
Monterosso Grana CN 4 505 8567
Roccabruna CN 5 1585 10152
Villar San Costanzo CN 5 1547 11699
Caraglio CN 6 6836 18535
Pradleves CN 6 250 18785
Cartignano CN 7 190 18975
Bernezzo CN 8 4104 23079
San Damiano Macra CN 10 430 23509
Rittana CN 10 109 23618
Cervasca CN 11 5013 28631
Valloriate CN 11 109 28740
Castelmagno CN 12 66 28806
Valmala CN 12 52 28858
Gaiola CN 12 582 29440
Vignolo CN 13 2600 32040
Busca CN 13 10181 42221
Roccasparvera CN 13 741 42962
Rossana CN 13 908 43870
Moiola CN 13 234 44104
Venasca CN 14 1437 45541
Melle CN 14 292 45833
Demonte CN 14 2003 47836
Brossasco CN 15 1084 48920
Celle di Macra CN 15 100 49020
Macra CN 16 59 49079
Borgo San Dalmazzo CN 16 12468 61547
Cuneo CN 16 56081 117628
Frassino CN 16 265 117893
Tarantasca CN 16 2122 120015
Piasco CN 17 2774 122789
Isasca CN 17 76 122865
Roccavione CN 17 2761 125626
Costigliole Saluzzo CN 17 3375 129001
Aisone CN 18 248 129249
Valdieri CN 18 935 130184
Brondello CN 19 290 130474
Villafalletto CN 19 2925 133399
Boves CN 20 9835 143234
Stroppo CN 20 103 143337

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km W of Cuneo (56081 inhabitants)
68 Km SW of Moncalieri (57294 inhabitants)
75 Km SW of Torino (890529 inhabitants)
77 Km NW of Sanremo (54807 inhabitants)
84 Km SW of Asti (76202 inhabitants)
91 Km W of Savona (61345 inhabitants)
Recent and historical Seismicity

These maps show the seismicity for different time windows. The earthquake locations reported in these maps are determined in quasi real-time by the personnel on duty in the seismic surveillance center of INGV in Rome. Note that the earthquake source parameters (hypocentral location and magnitude) are the best estimates obstained with the available data and they are adjourned as additional data become available. The source parameters obtained by the personnel on duty are then revised by the group in charge of the INGV Seismic Bulletin (Bollettino Sismico Italiano dell’INGV).

Earthquakes of the last three days (72 hours)

Earthquakes of the last three days (72 hours)

This map reports the earthquake epicenters located in the 72 hours (3 days) preceding the time of the current earthquake occurrence, using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radius of the circle representing the earthquake on the map scales with magnitude. The color depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours). The open star shows the epicenter of the current earthquake.
Earthquakes of the last 90 days

Earthquakes of the last 90 days

This map reports the Magnitudo ≥ 1.0 earthquake epicenters located in the 90 days preceding the time of the current earthquake occurrence, using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1985

Earthquakes since 1985

This map reports the Magnitudo ≥ 2.5 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2014

Earthquakes since 1000 AD until 2014

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version https://emidius.mi.ingv.it/CPTI15-DBMI15/) with estimated magnitude ≥ 5.0 since 1000 AD until 2014. The epicenters are represented by squares which sides scale with the estimated earthquake magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The open star shows 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
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 2.3 2020-11-19
11:21:55
44.44 7.36 17 2020-11-19
11:33:51
Sala Sismica INGV-Roma 84846201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-19 11:21:55 ± 0.13
Latitude 44.44 ± 0.01
Longitude 7.36 ± 0.01
Depth (km) 17 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 84846201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 968
Semi-minor axis of confidence ellipse (meter) 518
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 51
Circular confidence region, given by single value of horizontal uncertainty (meter) 970
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 105
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 1.48028
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 17
Magnitude information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 30
Type of magnitude ML
Reference to an origin 84846201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-19 11:33:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.FREG.EHZ. 2020-11-19T11:23:44.55 3.0 undecidable manual Sn 7.35 0
IT.MCLF.HNZ. 2020-11-19T11:23:29.95 3.0 undecidable manual Pn 7.25 0
IV.AGLI.HHZ. 2020-11-19T11:23:03.39 3.0 undecidable manual Pg 14.5 0
IV.COR1.EHZ. 2020-11-19T11:22:59.85 3.0 negative manual Pn 3.04 0
IV.FIR.HHZ. 2020-11-19T11:22:46.12 3.0 undecidable manual Pn 6.67 0
GU.GSCL.HHZ. 2020-11-19T11:22:40.43 3.0 undecidable manual Pg 8.79 0
GU.SATI.HHZ. 2020-11-19T11:22:22.70 0.6 undecidable manual P 14 1.4803 54 0.35 37
RD.ORIF.BHZ. 2020-11-19T11:22:17.69 0.6 undecidable manual P 295 1.1547 93 0.74 36
GU.RRL.HHZ. 2020-11-19T11:22:16.18 0.6 undecidable manual S 320 0.6286 95 -0.72 41
GU.RORO.HHZ. 2020-11-19T11:22:15.42 0.6 undecidable manual S 123 0.6025 96 -0.72 40
GU.ROTM.HHZ. 2020-11-19T11:22:12.14 1.0 positive manual P 60 0.8175 94 0.94 18
GU.PCP.HHZ. 2020-11-19T11:22:12.03 0.3 negative manual P 83 0.8526 94 0.24 67
FR.SAOF.HHZ.00 2020-11-19T11:22:11.93 0.6 undecidable manual S 163 0.473 98 -0.41 47
IV.MONC.HHZ. 2020-11-19T11:22:10.78 0.6 undecidable manual P 32 0.7527 94 0.69 40
MN.BNI.HHZ. 2020-11-19T11:22:09.95 0.3 negative manual P 322 0.7806 94 -0.61 61
IV.QLNO.HHZ. 2020-11-19T11:22:09.62 1.0 undecidable manual P 99 0.715 95 0.18 23
IV.IMI.HHZ. 2020-11-19T11:22:08.74 0.1 positive manual P 144 0.652 95 0.36 91
GU.CANO.HHZ. 2020-11-19T11:22:08.67 0.1 positive manual P 110 0.67 95 0 97
GU.RRL.HHZ. 2020-11-19T11:22:08.15 0.6 positive manual P 320 0.6286 95 0.18 47
GU.RSP.HHZ. 2020-11-19T11:22:08.45 0.3 negative manual P 355 0.7123 95 -0.95 54
GU.RORO.HHZ. 2020-11-19T11:22:07.40 0.1 negative manual P 123 0.6025 96 -0.13 96
FR.SAOF.HHZ.00 2020-11-19T11:22:05.73 0.1 positive manual P 163 0.473 98 0.4 93
GU.STV.HHZ. 2020-11-19T11:22:04.17 0.6 undecidable manual S 187 0.1943 116 -0.17 52
GU.ENR.HHZ. 2020-11-19T11:22:04.38 0.6 undecidable manual S 168 0.2167 113 -0.56 48
GU.GBOS.HHZ. 2020-11-19T11:22:03.91 0.1 positive manual P 120 0.3966 100 -0.13 100
GU.PZZ.HHZ. 2020-11-19T11:22:03.86 0.6 undecidable manual S 292 0.1853 118 -0.25 52
GU.PZZ.HHZ. 2020-11-19T11:22:01.02 0.1 negative manual P 292 0.1853 118 0.44 97
GU.STV.HHZ. 2020-11-19T11:22:01.10 1.0 undecidable manual P 187 0.1943 116 0.39 25
GU.ENR.HHZ. 2020-11-19T11:22:01.21 1.0 undecidable manual P 168 0.2167 113 0.15 26
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.STV.HHE. ML:2.5 0.002025 0.08 AML other m 2020-11-19T11:22:04.41
GU.STV.HHN. ML:2.3 0.001235 0.16 AML other m 2020-11-19T11:22:04.42
GU.ENR.HHE. ML:3 0.006185 0.3 AML other m 2020-11-19T11:22:04.79
GU.ENR.HHN. ML:3.2 0.00863 0.08 AML other m 2020-11-19T11:22:04.73
GU.PZZ.HHN. ML:2.1 0.00075 0.66 AML other m 2020-11-19T11:22:06.01
GU.PZZ.HHE. ML:2.1 0.0008385 0.34 AML other m 2020-11-19T11:22:06.12
GU.GBOS.HHE. ML:2.1 0.0004065 0.2 AML other m 2020-11-19T11:22:09.47
GU.GBOS.HHN. ML:2.2 0.0004665 1.06 AML other m 2020-11-19T11:22:09.61
FR.SAOF.HHE.00 ML:2.2 0.0004045 0.44 AML other m 2020-11-19T11:22:12.92
FR.SAOF.HHN.00 ML:2.3 0.000535 0.42 AML other m 2020-11-19T11:22:12.95
GU.RRL.HHN. ML:2 0.000184 0.32 AML other m 2020-11-19T11:22:16.96
GU.RORO.HHN. ML:2.3 0.000324 1.36 AML other m 2020-11-19T11:22:16.30
GU.RRL.HHE. ML:2.1 0.0001945 0.36 AML other m 2020-11-19T11:22:17.29
GU.RSP.HHN. ML:2 0.0001265 0.56 AML other m 2020-11-19T11:22:17.82
IV.IMI.HHE. ML:2.5 0.00045 0.96 AML other m 2020-11-19T11:22:17.99
GU.RSP.HHE. ML:2.1 0.0001795 0.14 AML other m 2020-11-19T11:22:18.13
IV.IMI.HHN. ML:2.7 0.000769 0.18 AML other m 2020-11-19T11:22:18.39
IV.QLNO.HHE. ML:1.9 0.0001205 1.86 AML other m 2020-11-19T11:22:20.93
IV.QLNO.HHN. ML:1.9 0.0001067 0.54 AML other m 2020-11-19T11:22:20.34
MN.BNI.HHE. ML:1.7 6.75E-5 1.72 AML other m 2020-11-19T11:22:20.94
MN.BNI.HHN. ML:1.6 4.695E-5 1.16 AML other m 2020-11-19T11:22:21.17
GU.CANO.HHN. ML:2.6 0.000574 0.3 AML other m 2020-11-19T11:22:21.56
GU.CANO.HHE. ML:2.5 0.000438 0.38 AML other m 2020-11-19T11:22:21.67
GU.PCP.HHN. ML:2.1 0.000139 1.7 AML other m 2020-11-19T11:22:23.98
GU.ROTM.HHE. ML:2.9 0.0008735 0.96 AML other m 2020-11-19T11:22:23.86
GU.PCP.HHE. ML:2.1 0.000146 0.78 AML other m 2020-11-19T11:22:24.46
GU.ROTM.HHN. ML:3 0.00122 0.18 AML other m 2020-11-19T11:22:24.56
IV.MONC.HHE. ML:2.4 0.00034 1.62 AML other m 2020-11-19T11:22:25.03
GU.RORO.HHE. ML:2.5 0.000575 0.68 AML other m 2020-11-19T11:22:25.40
IV.MONC.HHN. ML:2.4 0.0003045 0.26 AML other m 2020-11-19T11:22:27.27
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Focal Mechanisms

Focal Mechanisms

This map reports the focal mechanisms since 1977 in the region. The white and red beach ball symbols are mechanisms determined using the Regional Centroid Moment Tensor (RCMT, http://www.bo.ingv.it/RCMT) and are determined for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when there is a good source-receiver geometry of the target earthquake, the RCMT can be obtained also for earthquakes with magnitude larger than 4.0. The blue and white beach ball symbols indicate the mechanisms obtained from application of the Time Domain Moment Tensor (TDMT, http://terremoti.ingv.it/tdmt.html). This technique is used for M ≥ 3.5. The size of the beach ball sysmbol 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
Waveforms Seismic signals in full SEED format Download