Earthquake with magnitude of ML 2.5 on date 17-11-2020 and time 02:20:05 (Italy) in region 2 km NW Bobbio Pellice (TO)

A magnitude ML 2.5 earthquake occured in region: 2 km NW Bobbio Pellice (TO), on

  • 17-11-2020 01:20:05 (UTC)
  • 17-11-2020 02:20:05 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.827, 7.105 at 12 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Bobbio Pellice TO 2 563 563
Villar Pellice TO 5 1076 1639
Rorà TO 8 257 1896
Prali TO 8 246 2142
Torre Pellice TO 10 4551 6693
Angrogna TO 10 889 7582
Luserna San Giovanni TO 11 7395 14977
Lusernetta TO 12 506 15483
Pramollo TO 12 258 15741
Perrero TO 13 659 16400
Salza di Pinerolo TO 13 75 16475
San Germano Chisone TO 14 1854 18329
Prarostino TO 14 1273 19602
Crissolo CN 15 168 19770
Porte TO 15 1083 20853
Bibiana TO 15 3442 24295
Massello TO 15 51 24346
Villar Perosa TO 16 4092 28438
Pomaretto TO 16 1009 29447
Bricherasio TO 16 4616 34063
San Secondo di Pinerolo TO 16 3575 37638
Inverso Pinasca TO 16 730 38368
Perosa Argentina TO 16 3285 41653
Pinasca TO 16 3051 44704
Ostana CN 16 83 44787
Campiglione Fenile TO 18 1390 46177
Oncino CN 18 76 46253
Bagnolo Piemonte CN 18 6024 52277
San Pietro Val Lemina TO 19 1448 53725
Osasco TO 19 1141 54866
Pinerolo TO 19 35808 90674
Roure TO 20 848 91522

Municipalities with at least 50000 inhabitants

An earthquake occurred to
50 Km W of Moncalieri (57294 inhabitants)
53 Km SW of Torino (890529 inhabitants)
60 Km NW of Cuneo (56081 inhabitants)
87 Km W of Asti (76202 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 3 days preceding this event

Earthquakes of the 3 days preceding this event *

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 90 days preceding this event

Earthquakes of the 90 days preceding this event *

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 from 1985 to the date of the event

Earthquakes from 1985 to the date of the event *

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 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 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
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 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
Bulletin
Rev1000
ML 2.5 2020-11-17
01:20:05
44.8267 7.1048 12 2021-02-26
14:56:16
Bollettino Sismico Italiano INGV 86469871
Reviewed
Rev100
ML 2.4 2020-11-17
01:20:05
44.8223 7.1103 11 2020-11-17
01:27:03
Sala Sismica INGV-Roma 84785391
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-17 01:20:05 ± 0.11
Latitude 44.8267 ± 0.0063
Longitude 7.1048 ± 0.0114
Depth (km) 12 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86469871

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 900
Semi-minor axis of confidence ellipse (meter) 123
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 74
Circular confidence region, given by single value of horizontal uncertainty (meter) 900
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 97
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 35
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.47
Epicentral distance of station closest to the epicenter (degree) 0.11242
Epicentral distance of station farthest from the epicenter (degree) 1.56572
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 26
Magnitudes information

ML:2.5

Field Value
Value 2.5
Uncertainty 0.3
Num. used stations 46
Type of magnitude ML
Reference to an origin 86469871
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-22 19:50:00

ML:2.4

Field Value
Value 2.4
Uncertainty 0.2
Num. used stations 44
Type of magnitude ML
Reference to an origin 84785391
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-17 01:27:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.VARE.HHZ. 2020-11-17T01:20:32.23 0.3 undecidable manual P 48 1.5657 54 -1.06 37
GU.CIRO.HHZ. 2020-11-17T01:20:31.96 0.6 undecidable manual S 23 0.8409 90 -0.51 40
CH.DIX.HHZ. 2020-11-17T01:20:29.01 0.3 undecidable manual P 10 1.2707 90 0.75 49
CH.MMK.HHZ. 2020-11-17T01:20:29.09 0.3 undecidable manual P 26 1.3634 90 -0.76 48
GU.SATI.HHZ. 2020-11-17T01:20:26.01 0.3 undecidable manual P 27 1.1772 90 -0.66 52
GU.ENR.HHZ. 2020-11-17T01:20:25.79 0.6 undecidable manual S 159 0.6376 91 -0.66 37
GU.LSD.HHZ. 2020-11-17T01:20:25.26 0.6 undecidable manual S 2 0.6331 91 -1.06 34
GU.PCP.HHZ. 2020-11-17T01:20:25.22 0.6 undecidable manual P 105 1.063 90 0.51 38
GU.STV.HHZ. 2020-11-17T01:20:24.68 0.6 undecidable manual S 165 0.6025 91 -0.74 37
IV.QLNO.HHZ. 2020-11-17T01:20:24.28 0.3 undecidable manual P 119 1.0162 90 0.37 60
IV.IMI.HHZ. 2020-11-17T01:20:24.97 0.3 undecidable manual P 148 1.0747 90 0.05 63
GU.CANO.HHZ. 2020-11-17T01:20:24.19 0.3 undecidable manual P 127 1.0171 90 0.26 61
GU.REMY.HHZ. 2020-11-17T01:20:24.63 0.1 undecidable manual P 2 1.0108 90 0.8 67
IV.MRGE.HHZ. 2020-11-17T01:20:23.46 0.1 undecidable manual P 358 0.9425 90 0.8 68
GU.ROTM.HHZ. 2020-11-17T01:20:23.22 0.3 undecidable manual P 88 0.884 90 1.56 37
GU.RORO.HHZ. 2020-11-17T01:20:23.52 0.3 undecidable manual P 136 0.9902 90 0.05 64
RD.ORIF.BHZ. 2020-11-17T01:20:22.36 0.1 undecidable manual P 276 0.8723 90 0.91 65
FR.SAOF.HHZ.00 2020-11-17T01:20:21.82 0.3 undecidable manual P 159 0.8993 90 -0.09 64
GU.CIRO.HHZ. 2020-11-17T01:20:20.84 0.3 undecidable manual P 23 0.8409 90 -0.07 66
GU.TRAV.HHZ. 2020-11-17T01:20:20.11 0.3 undecidable manual P 33 0.8202 91 -0.46 61
GU.GBOS.HHZ. 2020-11-17T01:20:19.95 0.1 undecidable manual P 138 0.7851 91 -0.01 88
IV.MONC.HHZ. 2020-11-17T01:20:18.65 0.3 undecidable manual P 67 0.6322 91 1.31 45
GU.LSD.HHZ. 2020-11-17T01:20:17.60 0.1 negative manual P 2 0.6331 91 0.25 88
GU.ENR.HHZ. 2020-11-17T01:20:17.38 0.1 positive manual P 159 0.6376 91 -0.05 90
MN.BNI.HHZ. 2020-11-17T01:20:17.82 0.6 undecidable manual S 307 0.3768 91 -0.91 39
GU.PZZ.HHZ. 2020-11-17T01:20:16.27 0.3 undecidable manual S 179 0.3202 92 -0.79 58
GU.STV.HHZ. 2020-11-17T01:20:16.94 0.1 undecidable manual P 165 0.6025 91 0.11 92
GU.RSP.HHZ. 2020-11-17T01:20:16.91 0.6 undecidable manual S 19 0.3408 92 -0.75 40
GU.RRL.HHZ. 2020-11-17T01:20:14.03 0.3 undecidable manual S 293 0.2419 93 -0.71 65
GU.RSP.HHZ. 2020-11-17T01:20:12.45 0.1 negative manual P 19 0.3408 92 0.09 96
MN.BNI.HHZ. 2020-11-17T01:20:12.99 0.1 positive manual P 307 0.3768 91 0.02 96
GU.PZZ.HHZ. 2020-11-17T01:20:12.09 0.1 negative manual P 179 0.3202 92 0.08 98
GU.RRL.HHZ. 2020-11-17T01:20:10.71 0.1 undecidable manual P 293 0.2419 93 0.04 98
GU.BHB.HHE. 2020-11-17T01:20:10.41 0.3 undecidable manual S 85 0.1124 114 -0.56 65
GU.BHB.HHE. 2020-11-17T01:20:08.69 0.1 undecidable manual P 85 0.1124 114 0.2 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.RRL.HHE. ML:2.7 0.002475 0.14 AML other m 2020-11-17T01:20:14.11
GU.RRL.HHN. ML:2.7 0.0024 0.3 AML other m 2020-11-17T01:20:14.18
GU.PZZ.HHN. ML:3 0.004405 0.22 AML other m 2020-11-17T01:20:16.75
GU.PZZ.HHE. ML:3.2 0.00688 0.22 AML other m 2020-11-17T01:20:18.02
GU.RSP.HNE. ML:2.6 0.00137 0.24 AML other m 2020-11-17T01:20:18.17
GU.RSP.HHE. ML:2.6 0.001575 0.24 AML other m 2020-11-17T01:20:18.17
MN.BNI.HHE. ML:2.1 0.0003975 1.02 AML other m 2020-11-17T01:20:18.26
MN.BNI.HNE. ML:2.1 0.000387 1.02 AML other m 2020-11-17T01:20:18.27
GU.RSP.HNN. ML:2.4 0.000968 0.24 AML other m 2020-11-17T01:20:18.19
MN.BNI.HNN. ML:2.2 0.0005115 0.48 AML other m 2020-11-17T01:20:18.11
MN.BNI.HHN. ML:2.2 0.000505 0.48 AML other m 2020-11-17T01:20:18.11
GU.RSP.HHN. ML:2.5 0.001085 1.5 AML other m 2020-11-17T01:20:18.18
GU.LSD.HHE. ML:3 0.001505 0.32 AML other m 2020-11-17T01:20:25.74
GU.STV.HHE. ML:2.3 0.0003785 0.88 AML other m 2020-11-17T01:20:26.31
GU.LSD.HHN. ML:2.9 0.00135 0.26 AML other m 2020-11-17T01:20:26.41
GU.STV.HHN. ML:2.2 0.000305 1.46 AML other m 2020-11-17T01:20:26.17
GU.ENR.HHE. ML:2.4 0.000419 0.86 AML other m 2020-11-17T01:20:27.35
GU.ENR.HHN. ML:2.4 0.000462 0.56 AML other m 2020-11-17T01:20:27.40
GU.TRAV.HHN. ML:2.4 0.0003205 0.96 AML other m 2020-11-17T01:20:32.30
GU.GBOS.HHE. ML:2 0.000133 0.6 AML other m 2020-11-17T01:20:32.60
GU.TRAV.HHE. ML:2.6 0.000446 0.26 AML other m 2020-11-17T01:20:32.52
GU.CIRO.HHE. ML:2.5 0.000345 0.18 AML other m 2020-11-17T01:20:33.35
RD.ORIF.BHE. ML:2.3 0.0002075 0.96 AML other m 2020-11-17T01:20:33.57
IV.MONC.HHE. ML:2.6 0.000658 0.52 AML other m 2020-11-17T01:20:33.37
RD.ORIF.BHN. ML:2.5 0.000331 0.44 AML other m 2020-11-17T01:20:33.51
GU.CIRO.HHN. ML:2.4 0.0002435 1.18 AML other m 2020-11-17T01:20:34.13
GU.GBOS.HHN. ML:2 0.0001085 0.68 AML other m 2020-11-17T01:20:34.46
IV.MONC.HHN. ML:2.7 0.000846 0.3 AML other m 2020-11-17T01:20:35.43
FR.SAOF.HHE.00 ML:2.3 0.0002095 0.36 AML other m 2020-11-17T01:20:36.24
FR.SAOF.HHN.00 ML:2.3 0.0001925 1.5 AML other m 2020-11-17T01:20:36.02
IV.MRGE.HHN. ML:2.4 0.000235 0.46 AML other m 2020-11-17T01:20:37.72
IV.MRGE.HHE. ML:2.4 0.0002275 0.16 AML other m 2020-11-17T01:20:38.63
IV.QLNO.HHN. ML:2.1 0.0001034 0.44 AML other m 2020-11-17T01:20:39.63
IV.QLNO.HHE. ML:2.2 0.0001365 0.48 AML other m 2020-11-17T01:20:39.56
GU.REMY.HHN. ML:2.5 0.000269 0.78 AML other m 2020-11-17T01:20:40.42
GU.REMY.HHE. ML:2.5 0.00024 0.34 AML other m 2020-11-17T01:20:40.60
IV.IMI.HHN. ML:2.4 0.0001875 1.58 AML other m 2020-11-17T01:20:42.91
GU.CANO.HHN. ML:2.4 0.0002235 0.3 AML other m 2020-11-17T01:20:42.60
GU.CANO.HHE. ML:2.6 0.000327 0.62 AML other m 2020-11-17T01:20:42.42
IV.IMI.HHE. ML:2.4 0.000176 1.58 AML other m 2020-11-17T01:20:43.20
GU.SATI.HHE. ML:2.2 0.0001144 0.78 AML other m 2020-11-17T01:20:45.53
CH.DIX.HHE. ML:2.8 0.0003845 0.24 AML other m 2020-11-17T01:20:47.14
GU.ROTM.HHN. ML:2.9 0.00081 0.42 AML other m 2020-11-17T01:20:48.36
GU.SATI.HHN. ML:2.1 8.725E-5 0.52 AML other m 2020-11-17T01:20:48.46
GU.ROTM.HHE. ML:2.8 0.0006015 0.46 AML other m 2020-11-17T01:20:50.86
CH.DIX.HHN. ML:2.8 0.00035 1.64 AML other m 2020-11-17T01:20:54.01
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions *

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 miniseed + resp format Download