Earthquake with magnitude of ML 0.7 on date 03-09-2020 and time 19:47:05 (UTC) in region 4 km SW Valmala (CN)

A magnitude ML 0.7 earthquake occured in region: 4 km SW Valmala (CN), on

  • 03-09-2020 19:47:05 (UTC)
  • 03-09-2020 21:47:05 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.5280, 7.3060 at 5 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
Valmala CN 4 52 52
Melle CN 4 292 344
Frassino CN 6 265 609
San Damiano Macra CN 6 430 1039
Cartignano CN 6 190 1229
Roccabruna CN 6 1585 2814
Brossasco CN 7 1084 3898
Villar San Costanzo CN 8 1547 5445
Dronero CN 8 7035 12480
Venasca CN 8 1437 13917
Isasca CN 9 76 13993
Rossana CN 10 908 14901
Macra CN 10 59 14960
Sampeyre CN 11 1022 15982
Celle di Macra CN 11 100 16082
Montemale di Cuneo CN 11 241 16323
Brondello CN 11 290 16613
Gambasca CN 12 371 16984
Martiniana Po CN 12 734 17718
Pradleves CN 12 250 17968
Piasco CN 13 2774 20742
Monterosso Grana CN 13 505 21247
Sanfront CN 13 2395 23642
Busca CN 14 10181 33823
Pagno CN 14 585 34408
Rifreddo CN 14 1078 35486
Valgrana CN 14 786 36272
Stroppo CN 14 103 36375
Castellar CN 15 295 36670
Costigliole Saluzzo CN 15 3375 40045
Castelmagno CN 15 66 40111
Caraglio CN 16 6836 46947
Revello CN 16 4262 51209
Verzuolo CN 16 6459 57668
Elva CN 17 97 57765
Manta CN 17 3787 61552
Paesana CN 18 2784 64336
Envie CN 18 2074 66410
Marmora CN 18 68 66478
Bernezzo CN 19 4104 70582
Villafalletto CN 19 2925 73507
Oncino CN 19 76 73583
Canosio CN 19 80 73663
Tarantasca CN 19 2122 75785
Saluzzo CN 20 16960 92745

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)
82 Km W of Asti (76202 inhabitants)
87 Km NW of Sanremo (54807 inhabitants)
97 Km W of Savona (61345 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 0.7 2020-09-03
19:47:05
44.5277 7.3057 5 2020-09-03
19:55:03
Sala Sismica INGV-Roma 82597381
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-03 19:47:05 ± 0.16
Latitude 44.5277 ± 0.0072
Longitude 7.3057 ± 0.0189
Depth (km) 5 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 82597381

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1300
Semi-minor axis of confidence ellipse (meter) 863
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 262
Circular confidence region, given by single value of horizontal uncertainty (meter) 1300.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 133
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) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.13670
Epicentral distance of station farthest from the epicenter (degree) 0.47664
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:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 82597381
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-03 19:55:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.GBOS.HHE. 2020-09-03T19:47:22.84 0.3 undecidable manual S 127 52.9026 50 -0.4 68
GU.ENR.HHZ. 2020-09-03T19:47:17.11 0.3 undecidable manual S 165 34.6431 98 -0.3 72
GU.GBOS.HHE. 2020-09-03T19:47:16.00 0.3 undecidable manual P 127 52.9026 50 0.35 69
GU.BHB.HHZ. 2020-09-03T19:47:16.69 0.3 undecidable manual S 354 34.2435 98 -0.61 66
GU.STV.HHZ. 2020-09-03T19:47:15.84 0.3 undecidable manual S 177 31.3464 99 -0.45 70
GU.ENR.HHZ. 2020-09-03T19:47:12.59 0.1 undecidable manual P 165 34.6431 98 0.31 95
GU.BHB.HHZ. 2020-09-03T19:47:12.51 0.1 undecidable manual P 354 34.2435 98 0.29 96
GU.STV.HHZ. 2020-09-03T19:47:11.97 0.1 undecidable manual P 177 31.3464 99 0.33 95
GU.PZZ.HHZ. 2020-09-03T19:47:10.57 0.1 undecidable manual S 261 15.1737 108 -0.24 100
GU.PZZ.HHZ. 2020-09-03T19:47:08.76 0.1 undecidable manual P 261 15.1737 108 0.28 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.PZZ.HHN. ML:0.9 0.0000946 0.08 AML other m 2020-09-03T19:47:10.78
GU.PZZ.HHE. ML:0.7 0.0000574 0.24 AML other m 2020-09-03T19:47:10.83
GU.STV.HHE. ML:0.3 0.000010454999999999999 0.62 AML other m 2020-09-03T19:47:16.93
GU.STV.HHN. ML:0.5 0.000014775 0.68 AML other m 2020-09-03T19:47:17.55
GU.ENR.HHE. ML:0.8 0.00003075 0.24 AML other m 2020-09-03T19:47:17.32
GU.ENR.HHN. ML:0.8 0.000025099999999999997 0.28 AML other m 2020-09-03T19:47:17.32
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download