Earthquake with magnitude of ML 1.3 on date 06-04-2020 and time 03:03:13 (UTC) in region 1 km NW Dronero (CN)

A magnitude ML 1.3 earthquake occured in region: 1 km NW Dronero (CN), on

  • 06-04-2020 03:03:13 (UTC)
  • 06-04-2020 05:03:13 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.48, 7.36 at 4 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
Dronero CN 1 7035 7035
Roccabruna CN 1 1585 8620
Villar San Costanzo CN 2 1547 10167
Montemale di Cuneo CN 4 241 10408
Cartignano CN 6 190 10598
Valgrana CN 7 786 11384
Monterosso Grana CN 8 505 11889
Valmala CN 8 52 11941
San Damiano Macra CN 8 430 12371
Caraglio CN 8 6836 19207
Pradleves CN 9 250 19457
Rossana CN 10 908 20365
Busca CN 10 10181 30546
Melle CN 10 292 30838
Venasca CN 10 1437 32275
Brossasco CN 11 1084 33359
Bernezzo CN 11 4104 37463
Frassino CN 13 265 37728
Isasca CN 13 76 37804
Piasco CN 13 2774 40578
Cervasca CN 13 5013 45591
Castelmagno CN 14 66 45657
Celle di Macra CN 14 100 45757
Costigliole Saluzzo CN 14 3375 49132
Rittana CN 14 109 49241
Macra CN 15 59 49300
Brondello CN 15 290 49590
Tarantasca CN 15 2122 51712
Valloriate CN 15 109 51821
Vignolo CN 16 2600 54421
Gaiola CN 16 582 55003
Roccasparvera CN 16 741 55744
Villafalletto CN 16 2925 58669
Pagno CN 17 585 59254
Martiniana Po CN 17 734 59988
Verzuolo CN 17 6459 66447
Gambasca CN 17 371 66818
Moiola CN 17 234 67052
Castellar CN 18 295 67347
Cuneo CN 18 56081 123428
Sampeyre CN 18 1022 124450
Demonte CN 18 2003 126453
Manta CN 19 3787 130240
Centallo CN 19 6954 137194
Stroppo CN 19 103 137297
Borgo San Dalmazzo CN 19 12468 149765
Sanfront CN 19 2395 152160
Rifreddo CN 20 1078 153238

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km NW of Cuneo (56081 inhabitants)
64 Km SW of Moncalieri (57294 inhabitants)
71 Km SW of Torino (890529 inhabitants)
80 Km NW of Sanremo (54807 inhabitants)
82 Km SW of Asti (76202 inhabitants)
91 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 1.3 2020-04-06
03:03:13
44.48 7.36 4 2020-04-06
03:09:23
Sala Sismica INGV-Roma 77943581
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-06 03:03:13 ± 0.17
Latitude 44.48 ± 0.01
Longitude 7.36 ± 0.02
Depth (km) 4 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 77943581

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1333
Semi-minor axis of confidence ellipse (meter) 290
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 55
Circular confidence region, given by single value of horizontal uncertainty (meter) 1330
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 135
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.44
Epicentral distance of station closest to the epicenter (degree) 0.17627
Epicentral distance of station farthest from the epicenter (degree) 0.60075
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
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 77943581
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-06 03:09:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.GBOS.HHZ. 2020-04-06T03:03:28.76 0.3 undecidable manual S 124 0.4155 95 -0.3 72
GU.BHB.HHZ. 2020-04-06T03:03:26.63 0.1 undecidable manual S 349 0.366 96 -0.54 91
GU.RRL.HHE. 2020-04-06T03:03:25.47 0.3 undecidable manual P 318 0.6007 50 -0.12 72
FR.SAOF.HHE.00 2020-04-06T03:03:23.86 0.6 undecidable manual P 164 0.5081 50 -0.14 49
GU.ENR.HHZ. 2020-04-06T03:03:22.20 0.3 undecidable manual S 170 0.2527 98 -0.63 68
GU.GBOS.HHZ. 2020-04-06T03:03:22.72 0.1 undecidable manual P 124 0.4155 95 0.45 93
GU.BHB.HHZ. 2020-04-06T03:03:21.59 0.1 undecidable manual P 349 0.366 96 0.41 95
GU.PZZ.HHZ. 2020-04-06T03:03:19.65 0.3 undecidable manual S 280 0.1763 102 -0.29 76
GU.ENR.HHZ. 2020-04-06T03:03:18.93 0.1 undecidable manual P 170 0.2527 98 0.26 100
GU.PZZ.HHZ. 2020-04-06T03:03:17.47 0.1 undecidable manual P 280 0.1763 102 0.46 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.PZZ.HHN. ML:1.4 0.00022 1.58 AML other m 2020-04-06T03:03:19.13
GU.PZZ.HHE. ML:1.2 0.0001345 1.76 AML other m 2020-04-06T03:03:19.06
GU.ENR.HHE. ML:1.2 9.695E-5 0.24 AML other m 2020-04-06T03:03:23.23
GU.ENR.HHN. ML:1.1 7.57E-5 0.06 AML other m 2020-04-06T03:03:23.25
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