Earthquake with magnitude of ML 1.3 on date 29-10-2020 and time 23:21:17 (Italy) in region 4 km W Valloriate (CN)

A magnitude ML 1.3 earthquake occured in region: 4 km W Valloriate (CN), on

  • 29-10-2020 22:21:17 (UTC)
  • 29-10-2020 23:21:17 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.34, 7.33 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
Valloriate CN 4 109 109
Demonte CN 4 2003 2112
Moiola CN 5 234 2346
Rittana CN 6 109 2455
Gaiola CN 6 582 3037
Monterosso Grana CN 7 505 3542
Valgrana CN 9 786 4328
Roccasparvera CN 9 741 5069
Valdieri CN 9 935 6004
Aisone CN 9 248 6252
Pradleves CN 9 250 6502
Bernezzo CN 10 4104 10606
Montemale di Cuneo CN 11 241 10847
Vignolo CN 11 2600 13447
Caraglio CN 11 6836 20283
Castelmagno CN 12 66 20349
Cervasca CN 12 5013 25362
Roccavione CN 13 2761 28123
Entracque CN 13 774 28897
Borgo San Dalmazzo CN 13 12468 41365
Roaschia CN 13 107 41472
Vinadio CN 13 644 42116
Dronero CN 14 7035 49151
Roccabruna CN 15 1585 50736
Cartignano CN 15 190 50926
Robilante CN 15 2306 53232
Villar San Costanzo CN 16 1547 54779
San Damiano Macra CN 17 430 55209
Boves CN 18 9835 65044
Cuneo CN 19 56081 121125
Vernante CN 20 1178 122303
Celle di Macra CN 20 100 122403

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km W of Cuneo (56081 inhabitants)
69 Km NW of Sanremo (54807 inhabitants)
78 Km SW of Moncalieri (57294 inhabitants)
86 Km SW of Torino (890529 inhabitants)
92 Km W of Savona (61345 inhabitants)
93 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 1.3 2020-10-29
22:21:17
44.34 7.33 11 2020-10-29
22:30:39
Sala Sismica INGV-Roma 84246361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-29 22:21:17 ± 0.15
Latitude 44.34 ± 0.01
Longitude 7.33 ± 0.02
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 84246361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1790
Semi-minor axis of confidence ellipse (meter) 680
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 233
Circular confidence region, given by single value of horizontal uncertainty (meter) 1790
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 166
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 9
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) 0.6628
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 84246361
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-29 22:30:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MILN.HNZ. 2020-10-29T22:21:48.54 3.0 undecidable manual Pn 0.44 0
GU.BHB.HHZ. 2020-10-29T22:21:34.61 0.3 undecidable manual S 354 0.4937 50 -0.32 67
GU.CANO.HHZ. 2020-10-29T22:21:31.03 0.1 undecidable manual P 102 0.6628 50 0.46 84
GU.GBOS.HHZ. 2020-10-29T22:21:31.14 0.6 undecidable manual S 105 0.3786 50 -0.38 45
GU.BHB.HHZ. 2020-10-29T22:21:27.69 1.0 positive manual P 354 0.4937 50 0.01 24
GU.PZZ.HHZ. 2020-10-29T22:21:26.70 0.3 undecidable manual S 317 0.223 50 -0.22 73
GU.GBOS.HHZ. 2020-10-29T22:21:26.01 1.0 undecidable manual P 105 0.3786 50 0.31 23
GU.PZZ.HHZ. 2020-10-29T22:21:23.31 0.1 positive manual P 317 0.223 50 0.26 96
GU.ENR.HHZ. 2020-10-29T22:21:23.62 0.3 undecidable manual S 151 0.134 126 -0.48 70
GU.ENR.HHZ. 2020-10-29T22:21:21.57 0.1 undecidable manual P 151 0.134 126 0.15 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.ENR.HHN. ML:1.3 0.000201 0.22 AML other m 2020-10-29T22:21:23.74
GU.ENR.HHE. ML:1.4 0.00023 0.32 AML other m 2020-10-29T22:21:23.76
GU.PZZ.HHN. ML:1.2 0.0001052 0.24 AML other m 2020-10-29T22:21:27.19
GU.PZZ.HHE. ML:1.4 0.0001285 0.14 AML other m 2020-10-29T22:21:27.49
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