Earthquake with magnitude of ML 1.2 on date 17-07-2019 and time 15:49:31 (UTC) in region 2 km W Frassino (CN)

A magnitude ML 1.2 earthquake occured in region: 2 km W Frassino (CN), on

  • 17-07-2019 15:49:31 (UTC)
  • 17-07-2019 17:49:31 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.57, 7.25 at 12 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
Macra CN 10 59 3204
Sanfront CN 10 2395 5599
Gambasca CN 10 371 5970
Isasca CN 11 76 6046
Cartignano CN 11 190 6236
Celle di Macra CN 11 100 6336
Martiniana Po CN 11 734 7070
Venasca CN 12 1437 8507
Rifreddo CN 12 1078 9585
Stroppo CN 12 103 9688
Roccabruna CN 13 1585 11273
Brondello CN 13 290 11563
Oncino CN 13 76 11639
Elva CN 13 97 11736
Paesana CN 13 2784 14520
Villar San Costanzo CN 14 1547 16067
Casteldelfino CN 15 157 16224
Dronero CN 15 7035 23259
Revello CN 15 4262 27521
Ostana CN 15 83 27604
Rossana CN 15 908 28512
Pagno CN 15 585 29097
Envie CN 16 2074 31171
Castellar CN 16 295 31466
Crissolo CN 16 168 31634
Piasco CN 17 2774 34408
Pradleves CN 17 250 34658
Marmora CN 18 68 34726
Montemale di Cuneo CN 18 241 34967
Castelmagno CN 18 66 35033
Prazzo CN 18 170 35203
Barge CN 18 7774 42977
Canosio CN 18 80 43057
Pontechianale CN 19 179 43236
Bellino CN 19 109 43345
Costigliole Saluzzo CN 19 3375 46720
Monterosso Grana CN 19 505 47225
Busca CN 19 10181 57406
Verzuolo CN 19 6459 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)
66 Km SW of Torino (890529 inhabitants)
84 Km W of Asti (76202 inhabitants)
93 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
Rev 100 ML 1.2 2019-07-17
15:49:31
44.57 7.25 12 2019-07-17
16:15:01
Sala Sismica INGV-Roma 70659011
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-07-17 15:49:31 ± 0.12
Latitude 44.57 ± 0.01
Longitude 7.25 ± 0.02
Depth (km) 12 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 70659011

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1340
Semi-minor axis of confidence ellipse (meter) 1046
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 239
Circular confidence region, given by single value of horizontal uncertainty (meter) 1340
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 115
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
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) 0.11511
Epicentral distance of station farthest from the epicenter (degree) 0.80309
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 17
Type of magnitude ML
Reference to an origin 70659011
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-07-17 16:15:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.IMI.HHZ. 2019-07-17T15:49:57.70 0.6 undecidable manual S 145 0.8031 91 -0.05 45
GU.CANO.HHZ. 2019-07-17T15:49:57.38 0.6 undecidable manual S 117 0.7923 91 -0.03 45
GU.GBOS.HHZ. 2019-07-17T15:49:49.26 0.6 undecidable manual S 128 0.5333 91 -0.49 43
GU.CANO.HHZ. 2019-07-17T15:49:47.28 0.6 undecidable manual P 117 0.7923 91 0.82 35
GU.RRL.HHZ. 2019-07-17T15:49:47.87 0.6 undecidable manual S 317 0.4793 91 -0.28 45
IV.IMI.HHZ. 2019-07-17T15:49:47.09 0.3 undecidable manual P 145 0.8031 91 0.44 61
GU.ENR.HHZ. 2019-07-17T15:49:44.15 0.3 undecidable manual S 161 0.3633 92 -0.57 65
GU.GBOS.HHZ. 2019-07-17T15:49:42.31 0.3 undecidable manual P 128 0.5333 91 0.28 67
GU.RSP.HHZ. 2019-07-17T15:49:42.51 0.1 positive manual P 1 0.5783 91 -0.29 88
GU.STV.HHZ. 2019-07-17T15:49:42.94 0.6 undecidable manual S 171 0.3283 92 -0.74 41
GU.BHB.HHZ. 2019-07-17T15:49:41.00 0.6 undecidable manual S 2 0.2653 93 -0.81 39
GU.RRL.HHZ. 2019-07-17T15:49:41.59 0.1 positive manual P 317 0.4793 91 0.48 88
GU.ENR.HHZ. 2019-07-17T15:49:39.18 0.1 positive manual P 161 0.3633 92 0.05 97
GU.STV.HHZ. 2019-07-17T15:49:38.71 0.1 undecidable manual P 171 0.3283 92 0.18 95
GU.BHB.HHZ. 2019-07-17T15:49:37.49 0.1 undecidable manual P 2 0.2653 93 0.04 100
GU.PZZ.HHZ. 2019-07-17T15:49:37.17 0.6 undecidable manual S 237 0.1151 114 -0.25 49
GU.PZZ.HHZ. 2019-07-17T15:49:35.23 0.1 positive manual P 237 0.1151 114 0.32 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.PZZ.HHE. ML:1.9 0.0008564199 0.192 AML other m 2019-07-17T15:49:37.36
GU.PZZ.HHN. ML:2 0.00100532015 0.3072 AML other m 2019-07-17T15:49:37.43
GU.BHB.HHE. ML:0.8 2.967589E-5 0.1024 AML other m 2019-07-17T15:49:42.66
GU.BHB.HHN. ML:0.7 2.5484755E-5 0.0768 AML other m 2019-07-17T15:49:42.91
GU.STV.HHE. ML:1 4.081773E-5 0.0768 AML other m 2019-07-17T15:49:43.97
GU.STV.HHN. ML:1.1 4.518751E-5 0.1152 AML other m 2019-07-17T15:49:43.56
GU.ENR.HHE. ML:1.7 0.0001596573 0.0768 AML other m 2019-07-17T15:49:44.92
GU.ENR.HHN. ML:1.5 0.0001033579 0.064 AML other m 2019-07-17T15:49:44.91
GU.RRL.HHE. ML:0.6 1.1747944E-5 0.1792 AML other m 2019-07-17T15:49:48.93
GU.RRL.HHN. ML:0.8 1.3878378E-5 0.1792 AML other m 2019-07-17T15:49:48.73
GU.GBOS.HHE. ML:1.1 2.416813E-5 0.1408 AML other m 2019-07-17T15:49:50.00
GU.GBOS.HHN. ML:1.8 0.0001314407 0.6016 AML other m 2019-07-17T15:50:06.07
GU.RSP.HNN. ML:1.2 3.084996E-5 0.5376 AML other m 2019-07-17T15:49:46.82
GU.RSP.HHE. ML:0.7 1.150138E-5 0.0768 AML other m 2019-07-17T15:49:53.32
GU.RSP.HNE. ML:1.3 4.191721E-5 0.6016 AML other m 2019-07-17T15:49:50.28
IV.IMI.HHN. ML:1.2 2.2395575E-5 0.1152 AML other m 2019-07-17T15:49:59.91
IV.IMI.HHE. ML:1.1 1.59771485E-5 0.1408 AML other m 2019-07-17T15:49:59.78
GU.CANO.HHN. ML:1.5 3.420642E-5 0.2176 AML other m 2019-07-17T15:49:59.07
GU.CANO.HHE. ML:1.5 3.66645E-5 0.96 AML other m 2019-07-17T15:50:16.28
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