Earthquake with magnitude of ML 1.5 on date 22-10-2020 and time 10:05:55 (UTC) in region 2 km W Roccavione (CN)

A magnitude ML 1.5 earthquake occured in region: 2 km W Roccavione (CN), on

  • 22-10-2020 10:05:55 (UTC)
  • 22-10-2020 12:05:55 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.31, 7.46 at 10 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
Roccavione CN 2 2761 2761
Borgo San Dalmazzo CN 3 12468 15229
Roccasparvera CN 4 741 15970
Robilante CN 4 2306 18276
Roaschia CN 5 107 18383
Gaiola CN 5 582 18965
Vignolo CN 5 2600 21565
Moiola CN 6 234 21799
Rittana CN 7 109 21908
Valdieri CN 7 935 22843
Boves CN 7 9835 32678
Valloriate CN 8 109 32787
Cervasca CN 8 5013 37800
Bernezzo CN 9 4104 41904
Vernante CN 9 1178 43082
Entracque CN 10 774 43856
Cuneo CN 11 56081 99937
Caraglio CN 12 6836 106773
Peveragno CN 13 5543 112316
Valgrana CN 13 786 113102
Demonte CN 13 2003 115105
Monterosso Grana CN 15 505 115610
Limone Piemonte CN 15 1485 117095
Montemale di Cuneo CN 16 241 117336
Beinette CN 16 3423 120759
Chiusa di Pesio CN 17 3676 124435
Pradleves CN 19 250 124685
Dronero CN 19 7035 131720
Aisone CN 19 248 131968
Villar San Costanzo CN 20 1547 133515

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km SW of Cuneo (56081 inhabitants)
60 Km NW of Sanremo (54807 inhabitants)
79 Km S of Moncalieri (57294 inhabitants)
81 Km W of Savona (61345 inhabitants)
86 Km S of Torino (890529 inhabitants)
88 Km SW of Asti (76202 inhabitants)
Recent and historical Seismicity
Seismic hazard
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 1.5 2020-10-22
10:05:55
44.31 7.46 10 2020-10-22
10:15:02
Sala Sismica INGV-Roma 84022971
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-22 10:05:55 ± 0.18
Latitude 44.31 ± 0.01
Longitude 7.46 ± 0.02
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 84022971

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1623
Semi-minor axis of confidence ellipse (meter) 458
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 224
Circular confidence region, given by single value of horizontal uncertainty (meter) 1620
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 110
Number of associated phases, regardless of their use for origin computation 37
Number of defining phases 19
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) 0.84536
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.4
Num. used stations 16
Type of magnitude ML
Reference to an origin 84022971
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-22 10:15:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SGTA.HHZ. 2020-10-22T10:07:39.33 3.0 positive manual Pn 2.07 0
SI.MOSI.HHZ. 2020-10-22T10:07:33.94 3.0 undecidable manual Sg 2.1 0
IV.CAFI.HHZ. 2020-10-22T10:07:29.32 3.0 undecidable manual Sn -8.33 0
IV.FAGN.HHZ. 2020-10-22T10:07:24.13 3.0 positive manual Pg 10.38 0
IV.MF5.EHZ. 2020-10-22T10:07:20.41 3.0 undecidable manual Pg 11.45 0
IV.BRMO.HHZ. 2020-10-22T10:07:19.24 3.0 undecidable manual Sn -8.08 0
IV.ZONE.HHZ. 2020-10-22T10:07:15.04 3.0 undecidable manual Sg 2.12 0
IV.VIVA.HHZ. 2020-10-22T10:07:13.40 3.0 undecidable manual Pn 3.51 0
IV.BRMO.HHZ. 2020-10-22T10:06:54.56 3.0 negative manual Pg 7.15 0
IV.BRSN.EHZ. 2020-10-22T10:06:54.25 3.0 negative manual Pn 1.93 0
IV.MAON.HHZ. 2020-10-22T10:06:53.34 3.0 undecidable manual Pg 2.59 0
ST.VARA.EHZ. 2020-10-22T10:06:53.24 3.0 negative manual Pg 7.12 0
SI.LUSI.HHZ. 2020-10-22T10:06:53.21 3.0 undecidable manual Pg 5.77 0
IV.FIR.HHZ. 2020-10-22T10:06:47.34 3.0 undecidable manual Pg 2.47 0
IV.RAVA.EHZ. 2020-10-22T10:06:45.58 3.0 undecidable manual Pg 2.29 0
IV.MNTV.HNZ. 2020-10-22T10:06:37.52 3.0 negative manual Pn -3.89 0
GU.GRAM.HHZ. 2020-10-22T10:06:31.67 3.0 positive manual Pg -0.92 0
IV.CADC.HNZ. 2020-10-22T10:06:31.61 3.0 positive manual Pn -5.57 0
GU.PCP.HHZ. 2020-10-22T10:06:23.06 0.6 undecidable manual S 100
GU.RRL.HHZ. 2020-10-22T10:06:21.32 1.0 undecidable manual S 322 0.7725 50 0.12 22
GU.CANO.HHZ. 2020-10-22T10:06:14.63 0.1 undecidable manual S 101 0.5639 50 -0.39 86
IV.IMI.HHZ. 2020-10-22T10:06:13.31 0.1 undecidable manual S 142 0.5072 50 -0.04 93
GU.BHB.HHZ. 2020-10-22T10:06:13.76 0.3 undecidable manual S 345 0.5405 50 -0.55 62
GU.RORO.HHZ. 2020-10-22T10:06:12.57 0.1 undecidable manual S 115 0.4766 50 0.14 92
GU.RSP.HHZ. 2020-10-22T10:06:11.52 0.3 undecidable manual P 351 0.8454 50 -0.13 64
GU.RRL.HHZ. 2020-10-22T10:06:10.92 0.1 undecidable manual P 322 0.7725 50 0.52 80
GU.PZZ.HHZ. 2020-10-22T10:06:07.32 0.3 undecidable manual S 308 0.3139 50 -0.29 69
GU.CANO.HHZ. 2020-10-22T10:06:07.51 1.0 positive manual P 101 0.5639 50 0.68 20
IV.IMI.HHZ. 2020-10-22T10:06:06.28 0.1 undecidable manual P 142 0.5072 50 0.41 86
GU.BHB.HHZ. 2020-10-22T10:06:06.65 0.1 positive manual P 345 0.5405 50 0.22 89
GU.RORO.HHZ. 2020-10-22T10:06:05.77 0.6 positive manual P 115 0.4766 50 0.43 43
GU.GBOS.HHZ. 2020-10-22T10:06:05.80 0.3 undecidable manual S 105 0.2788 50 -0.77 60
GU.GBOS.HHZ. 2020-10-22T10:06:02.21 0.6 undecidable manual P 105 0.2788 50 0.25 47
GU.PZZ.HHZ. 2020-10-22T10:06:02.85 0.3 negative manual P 308 0.3139 50 0.29 69
GU.STV.HHZ. 2020-10-22T10:06:00.79 0.3 undecidable manual S 235 0.1196 128 -0.68 64
GU.STV.HHZ. 2020-10-22T10:05:59.10 1.0 undecidable manual P 235 0.1196 128 0.09 25
GU.ENR.HHZ. 2020-10-22T10:05:58.66 0.1 undecidable manual P 199 0.0926 135 0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.ENR.HHE. ML:2.7 0.00602 0.06 AML other m 2020-10-22T10:06:00.08
GU.ENR.HHN. ML:2.5 0.00401 0.06 AML other m 2020-10-22T10:06:00.12
GU.STV.HHE. ML:1.3 0.0002285 0.26 AML other m 2020-10-22T10:06:00.84
GU.STV.HHN. ML:1.3 0.0001965 0.1 AML other m 2020-10-22T10:06:00.85
GU.GBOS.HHE. ML:1.3 8.325E-5 0.38 AML other m 2020-10-22T10:06:06.23
GU.GBOS.HHN. ML:1.4 0.00010365 0.86 AML other m 2020-10-22T10:06:06.73
GU.PZZ.HHE. ML:1.6 0.000146 0.54 AML other m 2020-10-22T10:06:07.75
GU.PZZ.HHN. ML:1.6 0.0001785 0.1 AML other m 2020-10-22T10:06:08.22
GU.BHB.HHN. ML:1.4 4.835E-5 1.12 AML other m 2020-10-22T10:06:14.69
GU.BHB.HHE. ML:1.3 4.43E-5 1.02 AML other m 2020-10-22T10:06:15.20
SI.LUSI.HHE. ML:2.7 4.96E-5 0.7 AML other m 2020-10-22T10:06:56.41
SI.LUSI.HHN. ML:2.9 7.455E-5 0.64 AML other m 2020-10-22T10:06:57.94
GU.RORO.HHN. ML:1.6 9.6257455E-5 0.2176 AML other m 2020-10-22T10:06:13.00
IV.IMI.HHE. ML:1.1 3.2153E-5 0.2944 AML other m 2020-10-22T10:06:14.84
IV.IMI.HHN. ML:1.3 4.633114E-5 0.0832 AML other m 2020-10-22T10:06:14.70
GU.CANO.HHN. ML:1.6 7.8814835E-5 0.2752 AML other m 2020-10-22T10:06:15.13
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download