Earthquake with magnitude of ML 0.6 on date 20-07-2019 and time 22:59:09 (UTC) in region 1 km SW Roccabruna (CN)

A magnitude ML 0.6 earthquake occured in region: 1 km SW Roccabruna (CN), on

  • 20-07-2019 22:59:09 (UTC)
  • 21-07-2019 00:59:09 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.47, 7.33 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
Roccabruna CN 1 1585 1585
Dronero CN 3 7035 8620
Cartignano CN 3 190 8810
Villar San Costanzo CN 4 1547 10357
Montemale di Cuneo CN 5 241 10598
San Damiano Macra CN 6 430 11028
Monterosso Grana CN 7 505 11533
Pradleves CN 7 250 11783
Valgrana CN 8 786 12569
Valmala CN 8 52 12621
Caraglio CN 10 6836 19457
Melle CN 10 292 19749
Brossasco CN 11 1084 20833
Venasca CN 11 1437 22270
Rossana CN 11 908 23178
Castelmagno CN 12 66 23244
Frassino CN 12 265 23509
Celle di Macra CN 12 100 23609
Macra CN 12 59 23668
Bernezzo CN 12 4104 27772
Busca CN 12 10181 37953
Isasca CN 14 76 38029
Rittana CN 15 109 38138
Cervasca CN 15 5013 43151
Piasco CN 15 2774 45925
Valloriate CN 15 109 46034
Brondello CN 16 290 46324
Costigliole Saluzzo CN 16 3375 49699
Gaiola CN 16 582 50281
Sampeyre CN 16 1022 51303
Stroppo CN 17 103 51406
Vignolo CN 17 2600 54006
Roccasparvera CN 17 741 54747
Tarantasca CN 17 2122 56869
Moiola CN 18 234 57103
Demonte CN 18 2003 59106
Martiniana Po CN 18 734 59840
Gambasca CN 18 371 60211
Pagno CN 18 585 60796
Villafalletto CN 19 2925 63721
Castellar CN 19 295 64016
Marmora CN 19 68 64084
Verzuolo CN 19 6459 70543
Sanfront CN 19 2395 72938
Cuneo CN 20 56081 129019
Aisone CN 20 248 129267
Canosio CN 20 80 129347
Rifreddo CN 20 1078 130425

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km W of Cuneo (56081 inhabitants)
65 Km SW of Moncalieri (57294 inhabitants)
73 Km SW of Torino (890529 inhabitants)
81 Km NW of Sanremo (54807 inhabitants)
84 Km SW of Asti (76202 inhabitants)
93 Km W of Savona (61345 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
Rev 100 ML 0.6 2019-07-20
22:59:09
44.47 7.33 13 2019-07-20
23:34:25
Sala Sismica INGV-Roma 70749641
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-07-20 22:59:09 ± 0.21
Latitude 44.47 ± 0.01
Longitude 7.33 ± 0.02
Depth (km) 13 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 70749641

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1410
Semi-minor axis of confidence ellipse (meter) 920
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 43
Circular confidence region, given by single value of horizontal uncertainty (meter) 1410
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 129
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0.15648
Epicentral distance of station farthest from the epicenter (degree) 0.43078
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 70749641
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-07-20 23:34:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.STV.HHZ. 2019-07-20T22:59:18.15 0.1 undecidable manual S 181 0.2266 98 -0.26 99
GU.ENR.HHZ. 2019-07-20T22:59:18.89 0.1 undecidable manual S 165 0.2536 97 -0.32 97
GU.GBOS.HHZ. 2019-07-20T22:59:18.76 1.0 undecidable manual P 122 0.4308 93 0.75 20
GU.PZZ.HHZ. 2019-07-20T22:59:16.29 0.1 undecidable manual S 283 0.1565 108 -0.11 100
GU.BHB.HHZ. 2019-07-20T22:59:16.57 0.1 positive manual P 353 0.366 94 -0.33 91
GU.ENR.HHZ. 2019-07-20T22:59:15.29 0.6 positive manual P 165 0.2536 97 0.31 48
GU.STV.HHZ. 2019-07-20T22:59:14.86 0.1 positive manual P 181 0.2266 98 0.34 95
GU.PZZ.HHZ. 2019-07-20T22:59:13.85 0.3 negative manual P 283 0.1565 108 0.49 71
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.PZZ.HHN. ML:0.8 5.09E-5 0.22 AML other m 2019-07-20T22:59:16.76
GU.PZZ.HHE. ML:0.6 3.205E-5 0.54 AML other m 2019-07-20T22:59:16.99
GU.STV.HHE. ML:0.3 1.2155E-5 0.1 AML other m 2019-07-20T22:59:18.41
GU.STV.HHN. ML:0.4 1.344E-5 0.48 AML other m 2019-07-20T22:59:19.40
GU.ENR.HHE. ML:0.8 3.555E-5 0.66 AML other m 2019-07-20T22:59:19.49
GU.ENR.HHN. ML:0.7 2.595E-5 0.66 AML other m 2019-07-20T22:59:20.16
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