Earthquake with magnitude of ML 1.1 on date 21-07-2019 and time 15:49:32 (UTC) in region 4 km SW Melle (CN)

A magnitude ML 1.1 earthquake occured in region: 4 km SW Melle (CN), on

  • 21-07-2019 15:49:32 (UTC)
  • 21-07-2019 17:49:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.53, 7.3 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
Melle CN 4 292 292
Valmala CN 4 52 344
Frassino CN 5 265 609
San Damiano Macra CN 5 430 1039
Cartignano CN 6 190 1229
Roccabruna CN 7 1585 2814
Brossasco CN 7 1084 3898
Villar San Costanzo CN 8 1547 5445
Dronero CN 9 7035 12480
Venasca CN 9 1437 13917
Isasca CN 10 76 13993
Macra CN 10 59 14052
Sampeyre CN 10 1022 15074
Celle di Macra CN 11 100 15174
Rossana CN 11 908 16082
Montemale di Cuneo CN 12 241 16323
Brondello CN 12 290 16613
Gambasca CN 12 371 16984
Pradleves CN 12 250 17234
Martiniana Po CN 12 734 17968
Sanfront CN 13 2395 20363
Monterosso Grana CN 13 505 20868
Piasco CN 14 2774 23642
Stroppo CN 14 103 23745
Busca CN 14 10181 33926
Rifreddo CN 14 1078 35004
Pagno CN 14 585 35589
Valgrana CN 15 786 36375
Castelmagno CN 15 66 36441
Castellar CN 15 295 36736
Costigliole Saluzzo CN 16 3375 40111
Revello CN 16 4262 44373
Caraglio CN 16 6836 51209
Elva CN 16 97 51306
Verzuolo CN 17 6459 57765
Paesana CN 18 2784 60549
Marmora CN 18 68 60617
Manta CN 18 3787 64404
Envie CN 18 2074 66478
Oncino CN 19 76 66554
Canosio CN 19 80 66634
Bernezzo CN 19 4104 70738
Casteldelfino CN 19 157 70895
Villafalletto CN 19 2925 73820
Prazzo CN 20 170 73990

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km NW of Cuneo (56081 inhabitants)
61 Km SW of Moncalieri (57294 inhabitants)
68 Km SW of Torino (890529 inhabitants)
83 Km W of Asti (76202 inhabitants)
88 Km NW of Sanremo (54807 inhabitants)
97 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 1.1 2019-07-21
15:49:32
44.53 7.3 12 2019-07-21
15:59:15
Sala Sismica INGV-Roma 70773401
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-07-21 15:49:32 ± 0.14
Latitude 44.53 ± 0.01
Longitude 7.30 ± 0.02
Depth (km) 12 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 70773401

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1505
Semi-minor axis of confidence ellipse (meter) 1069
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 242
Circular confidence region, given by single value of horizontal uncertainty (meter) 1500
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 14
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.61963
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 70773401
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-07-21 15:59:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.RSP.HHZ. 2019-07-21T15:49:53.97 0.3 undecidable manual S 358 0.6196 90 0.23 67
GU.RRL.HHZ. 2019-07-21T15:49:50.86 0.6 undecidable manual S 318 0.5315 91 -0.28 44
IV.QLNO.HHZ. 2019-07-21T15:49:49.21 3.0 negative manual P 2.82 0
IV.IMI.HHZ. 2019-07-21T15:49:47.99 3.0 undecidable manual P 1.67 0
GU.RSP.HHZ. 2019-07-21T15:49:44.68 0.6 positive manual P 358 0.6196 90 -0.27 44
GU.ENR.HHZ. 2019-07-21T15:49:44.38 0.6 undecidable manual S 164 0.3148 91 -0.34 45
GU.STV.HHZ. 2019-07-21T15:49:43.35 0.6 undecidable manual S 176 0.2842 91 -0.46 44
GU.RRL.HHZ. 2019-07-21T15:49:43.75 0.1 undecidable manual P 318 0.5315 91 0.31 90
GU.BHB.HHZ. 2019-07-21T15:49:43.92 0.3 undecidable manual S 356 0.3067 91 -0.56 65
GU.BHB.HHZ. 2019-07-21T15:49:39.77 0.1 negative manual P 356 0.3067 91 0.17 97
GU.ENR.HHZ. 2019-07-21T15:49:39.89 0.6 undecidable manual P 164 0.3148 91 0.16 49
GU.STV.HHZ. 2019-07-21T15:49:39.51 0.1 undecidable manual P 176 0.2842 91 0.3 95
GU.PZZ.HHE. 2019-07-21T15:49:38.88 0.6 undecidable manual S 260 0.1304 103 -0.4 46
GU.PZZ.HHE. 2019-07-21T15:49:36.79 0.1 undecidable manual P 260 0.1304 103 0.19 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.STV.HHN. ML:1.1 6.1E-5 0.22 AML other m 2019-07-21T15:49:43.51
GU.STV.HHE. ML:1.5 0.00012955 0.1 AML other m 2019-07-21T15:49:43.53
GU.ENR.HHN. ML:1.6 0.0001375 0.96 AML other m 2019-07-21T15:49:44.12
GU.ENR.HHE. ML:1.6 0.0001495 0.16 AML other m 2019-07-21T15:49:44.62
GU.BHB.HHN. ML:0.9 3.15E-5 0.66 AML other m 2019-07-21T15:49:45.50
GU.BHB.HHE. ML:0.9 3.35E-5 1.1 AML other m 2019-07-21T15:49:46.32
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