Earthquake with magnitude of ML 0.7 on date 06-07-2020 and time 22:58:34 (Italy) in region 2 km W Frassino (CN)

A magnitude ML 0.7 earthquake occured in region: 2 km W Frassino (CN), on

  • 06-07-2020 20:58:34 (UTC)
  • 06-07-2020 22:58:34 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.57, 7.25 at 6 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
Frassino CN 2 265 265
Sampeyre CN 5 1022 1287
Melle CN 6 292 1579
Valmala CN 8 52 1631
Brossasco CN 9 1084 2715
San Damiano Macra CN 9 430 3145
Sanfront CN 10 2395 5540
Gambasca CN 10 371 5911
Macra CN 10 59 5970
Isasca CN 10 76 6046
Cartignano CN 11 190 6236
Martiniana Po CN 11 734 6970
Venasca CN 11 1437 8407
Celle di Macra CN 12 100 8507
Rifreddo CN 12 1078 9585
Stroppo CN 12 103 9688
Brondello CN 13 290 9978
Oncino CN 13 76 10054
Paesana CN 13 2784 12838
Roccabruna CN 13 1585 14423
Elva CN 13 97 14520
Revello CN 14 4262 18782
Villar San Costanzo CN 14 1547 20329
Ostana CN 14 83 20412
Casteldelfino CN 15 157 20569
Rossana CN 15 908 21477
Dronero CN 15 7035 28512
Pagno CN 15 585 29097
Envie CN 16 2074 31171
Castellar CN 16 295 31466
Crissolo CN 16 168 31634
Piasco CN 16 2774 34408
Pradleves CN 17 250 34658
Marmora CN 18 68 34726
Montemale di Cuneo CN 18 241 34967
Barge CN 18 7774 42741
Castelmagno CN 18 66 42807
Prazzo CN 18 170 42977
Pontechianale CN 19 179 43156
Costigliole Saluzzo CN 19 3375 46531
Verzuolo CN 19 6459 52990
Bellino CN 19 109 53099
Canosio CN 19 80 53179
Busca CN 19 10181 63360
Monterosso Grana CN 19 505 63865
Manta CN 19 3787 67652

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km NW of Cuneo (56081 inhabitants)
59 Km SW of Moncalieri (57294 inhabitants)
65 Km SW of Torino (890529 inhabitants)
84 Km W of Asti (76202 inhabitants)
94 Km NW of Sanremo (54807 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 0.7 2020-07-06
20:58:34
44.57 7.25 6 2020-07-06
21:09:37
Sala Sismica INGV-Roma 80840001
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-06 20:58:34 ± 0.22
Latitude 44.57 ± 0.01
Longitude 7.25 ± 0.02
Depth (km) 6 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 80840001

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1640
Semi-minor axis of confidence ellipse (meter) 870
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 268
Circular confidence region, given by single value of horizontal uncertainty (meter) 1640
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 159
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.43
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.36602
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 4
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 80840001
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-06 21:09:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.GBOS.HHZ. 2020-07-06T20:58:54.59 3.0 undecidable manual S 0
GU.ENR.HHZ. 2020-07-06T20:58:48.84 0.6 undecidable manual S 161 0.366 99 -0.41 62
GU.GBOS.HHZ. 2020-07-06T20:58:47.05 3.0 undecidable manual P 0
GU.STV.HHZ. 2020-07-06T20:58:47.46 0.3 undecidable manual S 171 0.3318 100 -0.47 92
GU.BHB.HHZ. 2020-07-06T20:58:44.73 0.3 undecidable manual S 2 0.2617 102 -0.58 90
GU.ENR.HHZ. 2020-07-06T20:58:43.70 0.3 undecidable manual P 161 0.366 99 0.49 91
GU.STV.HHZ. 2020-07-06T20:58:42.94 0.6 undecidable manual P 171 0.3318 100 0.48 61
GU.BHB.HHZ. 2020-07-06T20:58:41.37 0.3 positive manual P 2 0.2617 102 0.43 94
GU.PZZ.HHZ. 2020-07-06T20:58:39.75 0.3 undecidable manual S 236 0.1178 116 -0.26 100
GU.PZZ.HHZ. 2020-07-06T20:58:38.24 0.3 positive manual P 236 0.1178 116 0.36 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.PZZ.HHE. ML:0.8 8.077817E-5 0.2048 AML other m 2020-07-06T20:58:41.04
GU.PZZ.HHN. ML:0.9 0.00010554216 0.4992 AML other m 2020-07-06T20:58:40.07
GU.BHB.HHE. ML:0.6 1.8499371E-5 0.4608 AML other m 2020-07-06T20:58:45.43
GU.BHB.HHN. ML:0.5 1.63307375E-5 0.2816 AML other m 2020-07-06T20:58:45.38
GU.STV.HHE. ML:0.7 1.7706425E-5 2.6752 AML other m 2020-07-06T20:58:47.23
GU.STV.HHN. ML:0.7 1.893591E-5 1.6384 AML other m 2020-07-06T20:58:43.83
GU.ENR.HHE. ML:0.6 1.3992528E-5 0.256 AML other m 2020-07-06T20:58:50.09
GU.ENR.HHN. ML:0.8 1.7715005E-5 1.536 AML other m 2020-07-06T20:58:50.58
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