Earthquake with magnitude of ML 2.1 on date 10-11-2021 and time 06:33:34 (Italy) in region 3 km SW Pradleves (CN)

A magnitude ML 2.1 earthquake occured in region: 3 km SW Pradleves (CN), on

  • 10-11-2021 05:33:34 (UTC)
  • 10-11-2021 06:33:34 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.398, 7.264 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
Pradleves CN 3 250 250
Castelmagno CN 4 66 316
Monterosso Grana CN 5 505 821
Cartignano CN 9 190 1011
Valgrana CN 9 786 1797
Demonte CN 10 2003 3800
Montemale di Cuneo CN 10 241 4041
Aisone CN 10 248 4289
San Damiano Macra CN 10 430 4719
Roccabruna CN 11 1585 6304
Valloriate CN 11 109 6413
Dronero CN 11 7035 13448
Celle di Macra CN 12 100 13548
Rittana CN 12 109 13657
Vinadio CN 12 644 14301
Macra CN 13 59 14360
Moiola CN 13 234 14594
Caraglio CN 13 6836 21430
Gaiola CN 13 582 22012
Villar San Costanzo CN 13 1547 23559
Bernezzo CN 14 4104 27663
Marmora CN 15 68 27731
Roccasparvera CN 16 741 28472
Canosio CN 16 80 28552
Sambuco CN 16 92 28644
Stroppo CN 16 103 28747
Cervasca CN 16 5013 33760
Valdieri CN 17 935 34695
Vignolo CN 17 2600 37295
Valmala CN 18 52 37347
Melle CN 19 292 37639
Prazzo CN 19 170 37809
Pietraporzio CN 19 77 37886
Borgo San Dalmazzo CN 19 12468 50354
Frassino CN 19 265 50619
Roccavione CN 20 2761 53380

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km W of Cuneo (56081 inhabitants)
75 Km SW of Moncalieri (57294 inhabitants)
76 Km NW of Sanremo (54807 inhabitants)
82 Km SW of Torino (890529 inhabitants)
93 Km SW of Asti (76202 inhabitants)
97 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
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 2.1 2021-11-10
05:33:34
44.3983 7.2642 13 2021-11-10
05:43:15
Sala Sismica INGV-Roma 97372241
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-10 05:33:34 ± 0.11
Latitude 44.3983 ± 0.0081
Longitude 7.2642 ± 0.0151
Depth (km) 13 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 97372241

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1097
Semi-minor axis of confidence ellipse (meter) 873
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 58
Circular confidence region, given by single value of horizontal uncertainty (meter) 1100
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 152
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.82288
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 11
Magnitude information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 30
Type of magnitude ML
Reference to an origin 97372241
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-10 05:43:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MTRZ.HNZ. 2021-11-10T05:35:09.35 3.0 undecidable manual Sg 11.69 0
IV.ASQU.HHZ. 2021-11-10T05:35:09.87 3.0 undecidable manual Sn 4.16 0
IV.SRES.HHZ. 2021-11-10T05:34:58.81 3.0 undecidable manual Pg 18.719999 0
RD.ORIF.BHZ. 2021-11-10T05:34:09.48 3.0 undecidable manual S -0.92 0
GU.RNCA.HHZ. 2021-11-10T05:33:57.36 3.0 positive manual P 0.96 0
GU.BURY.HHZ. 2021-11-10T05:33:55.84 0.6 undecidable manual S 161 0.6502 92 -0.15 46
GU.IMI.HHZ. 2021-11-10T05:33:55.99 0.6 undecidable manual S 137 0.6646 92 -0.41 42
RD.ORIF.BHZ. 2021-11-10T05:33:55.56 3.0 negative manual P 1.34 0
GU.RRL.HHZ. 2021-11-10T05:33:54.73 0.6 undecidable manual S 327 0.6214 92 -0.41 42
GU.LSD.HHZ. 2021-11-10T05:33:53.73 3.0 positive manual P -0.16 0
GU.ROTM.HHZ. 2021-11-10T05:33:52.49 3.0 positive manual P 0.71 0
GU.MGRO.HHZ. 2021-11-10T05:33:52.20 0.6 undecidable manual S 132 0.5279 93 -0.16 46
GU.PCP.HHZ. 2021-11-10T05:33:51.96 3.0 positive manual P -0.46 0
IV.MONC.HHZ. 2021-11-10T05:33:50.66 0.3 undecidable manual P 35 0.8229 91 0.9 56
GU.BHB.HHZ. 2021-11-10T05:33:49.62 0.3 undecidable manual S 360 0.4371 93 -0.05 70
GU.GBOS.HHZ. 2021-11-10T05:33:49.18 0.6 undecidable manual S 111 0.4407 93 -0.6 40
IV.QLNO.HHZ. 2021-11-10T05:33:49.47 3.0 negative manual P -0.19 0
FR.SAOF.HHZ.00 2021-11-10T05:33:49.77 0.6 undecidable manual S 153 0.4614 93 -0.62 42
GU.CANO.HHZ. 2021-11-10T05:33:48.48 3.0 negative manual P -0.14 0
GU.IMI.HHZ. 2021-11-10T05:33:47.28 0.3 undecidable manual P 137 0.6646 92 0.24 67
GU.RSP.HHZ. 2021-11-10T05:33:47.56 3.0 positive manual P -0.92 0
GU.BURY.HHZ. 2021-11-10T05:33:47.20 0.3 undecidable manual P 161 0.6502 92 0.39 65
GU.RRL.HHZ. 2021-11-10T05:33:46.34 0.6 positive manual P 327 0.6214 92 0.03 47
GU.MGRO.HHZ. 2021-11-10T05:33:44.88 0.3 undecidable manual P 132 0.5279 93 0.18 70
FR.SAOF.HHZ.00 2021-11-10T05:33:43.73 0.3 positive manual P 153 0.4614 93 0.16 71
GU.GBOS.HHZ. 2021-11-10T05:33:43.42 0.1 positive manual P 111 0.4407 93 0.2 96
GU.BHB.HHZ. 2021-11-10T05:33:42.67 0.1 undecidable manual P 360 0.4371 93 -0.49 84
GU.ENR.HHZ. 2021-11-10T05:33:42.35 0.6 undecidable manual S 147 0.2014 102 -0.39 47
GU.STV.HHZ. 2021-11-10T05:33:41.16 0.1 undecidable manual S 164 0.1592 109 -0.38 98
GU.PZZ.HHZ. 2021-11-10T05:33:40.87 0.3 undecidable manual S 316 0.1511 111 -0.44 72
GU.ENR.HHZ. 2021-11-10T05:33:39.35 0.1 undecidable manual P 147 0.2014 102 0.19 98
GU.STV.HHZ. 2021-11-10T05:33:38.62 0.1 undecidable manual P 164 0.1592 109 0.16 99
GU.PZZ.HHZ. 2021-11-10T05:33:38.46 0.1 undecidable manual P 316 0.1511 111 0.13 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.STV.HHN. ML:2.1 0.001044 0.48 AML other m 2021-11-10T05:33:41.26
GU.STV.HHE. ML:2.2 0.0010915 0.44 AML other m 2021-11-10T05:33:41.23
GU.PZZ.HHN. ML:2.5 0.002745 0.82 AML other m 2021-11-10T05:33:41.34
GU.PZZ.HHE. ML:2.5 0.0025 1.28 AML other m 2021-11-10T05:33:41.27
GU.ENR.HHN. ML:2.7 0.00333 0.32 AML other m 2021-11-10T05:33:42.68
GU.ENR.HHE. ML:2.6 0.002605 0.32 AML other m 2021-11-10T05:33:42.84
GU.GBOS.HHE. ML:2.2 0.0004255 1.48 AML other m 2021-11-10T05:33:49.05
GU.BHB.HHE. ML:1.7 0.000147 0.68 AML other m 2021-11-10T05:33:49.88
GU.BHB.HNE. ML:1.8 0.000148 0.44 AML other m 2021-11-10T05:33:49.66
GU.BHB.HNN. ML:1.7 0.000125 1.28 AML other m 2021-11-10T05:33:49.34
GU.BHB.HHN. ML:1.7 0.0001235 1.3 AML other m 2021-11-10T05:33:49.33
GU.GBOS.HHN. ML:2.1 0.000321 0.16 AML other m 2021-11-10T05:33:50.13
FR.SAOF.HHN.00 ML:2.1 0.0002945 0.18 AML other m 2021-11-10T05:33:50.75
FR.SAOF.HHE.00 ML:2.2 0.00038 0.54 AML other m 2021-11-10T05:33:51.33
GU.MGRO.HHN. ML:2.2 0.000315 1.18 AML other m 2021-11-10T05:33:53.22
GU.MGRO.HHE. ML:2.1 0.000263 0.28 AML other m 2021-11-10T05:33:54.32
GU.IMI.HHE. ML:2.2 0.000216 0.96 AML other m 2021-11-10T05:33:56.49
GU.IMI.HHN. ML:2.5 0.0004715 0.16 AML other m 2021-11-10T05:33:56.90
GU.RRL.HHN. ML:1.9 0.000123 0.88 AML other m 2021-11-10T05:33:57.54
GU.RRL.HHE. ML:1.9 0.0001323 1.58 AML other m 2021-11-10T05:33:57.13
GU.CANO.HHN. ML:2.2 0.000246 0.22 AML other m 2021-11-10T05:34:00.26
GU.RSP.HHE. ML:1.7 6.71E-5 0.42 AML other m 2021-11-10T05:34:00.65
GU.CANO.HHE. ML:2.4 0.0003175 0.74 AML other m 2021-11-10T05:34:01.53
GU.RSP.HHN. ML:1.8 7.61E-5 0.64 AML other m 2021-11-10T05:34:05.09
GU.PCP.HHN. ML:2 0.00010395 0.2 AML other m 2021-11-10T05:34:06.47
GU.PCP.HHE. ML:2.1 0.00011665 1.22 AML other m 2021-11-10T05:34:07.61
GU.LSD.HHE. ML:1.9 5.68E-5 1.38 AML other m 2021-11-10T05:34:11.82
GU.LSD.HHN. ML:1.8 4.955E-5 0.88 AML other m 2021-11-10T05:34:12.28
IV.QLNO.HHE. ML:1.9 0.000107158935 0.5216 AML other m 2021-11-10T05:34:02.62
IV.QLNO.HHN. ML:2 0.000114057045 0.3808 AML other m 2021-11-10T05:34:01.90
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
Waveforms Seismic signals in miniseed + resp format not available