Earthquake with magnitude of ML 1.3 on date 03-08-2017 and time 03:57:15 (Italy) in region 2 km SE Frassino (CN)

A magnitude ML 1.3 earthquake occured in region: 2 km SE Frassino (CN), on

  • 03-08-2017 01:57:15 (UTC)
  • 03-08-2017 03:57:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.5540, 7.2930 at 7 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Melle CN 3 292 557
Valmala CN 4 52 609
Brossasco CN 6 1084 1693
San Damiano Macra CN 8 430 2123
Isasca CN 8 76 2199
Venasca CN 8 1437 3636
Cartignano CN 9 190 3826
Sampeyre CN 9 1022 4848
Roccabruna CN 9 1585 6433
Gambasca CN 10 371 6804
Martiniana Po CN 10 734 7538
Brondello CN 10 290 7828
Villar San Costanzo CN 11 1547 9375
Sanfront CN 11 2395 11770
Macra CN 11 59 11829
Dronero CN 11 7035 18864
Rossana CN 11 908 19772
Rifreddo CN 12 1078 20850
Celle di Macra CN 12 100 20950
Pagno CN 13 585 21535
Piasco CN 13 2774 24309
Castellar CN 14 295 24604
Revello CN 14 4262 28866
Stroppo CN 14 103 28969
Montemale di Cuneo CN 14 241 29210
Paesana CN 15 2784 31994
Pradleves CN 15 250 32244
Busca CN 15 10181 42425
Costigliole Saluzzo CN 15 3375 45800
Envie CN 16 2074 47874
Oncino CN 16 76 47950
Verzuolo CN 16 6459 54409
Elva CN 16 97 54506
Monterosso Grana CN 16 505 55011
Manta CN 17 3787 58798
Castelmagno CN 17 66 58864
Ostana CN 18 83 58947
Valgrana CN 18 786 59733
Casteldelfino CN 18 157 59890
Caraglio CN 19 6836 66726
Marmora CN 19 68 66794
Saluzzo CN 19 16960 83754
Barge CN 19 7774 91528
Crissolo CN 19 168 91696
Villafalletto CN 20 2925 94621
Canosio CN 20 80 94701

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km NW of Cuneo (56081 inhabitants)
59 Km SW of Moncalieri (57294 inhabitants)
66 Km SW of Torino (890529 inhabitants)
82 Km W of Asti (76202 inhabitants)
90 Km NW of Sanremo (54807 inhabitants)
98 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
Bulletin
Rev1000
ML 1.3 2017-08-03
01:57:15
44.5543 7.2927 7 2018-07-06
15:40:35
Bollettino Sismico Italiano INGV 52348191
Reviewed
Rev100
ML 1.3 2017-08-03
01:57:15
44.5313 7.2585 10 2017-08-03
02:11:44
Sala Sismica INGV-Roma 48630881
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-08-03 01:57:15 ± 0.24
Latitude 44.5543 ± 0.0117
Longitude 7.2927 ± 0.0252
Depth (km) 7 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 52348191

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1787
Semi-minor axis of confidence ellipse (meter) 1057
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 246
Circular confidence region, given by single value of horizontal uncertainty (meter) 1790.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 121
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.57
Epicentral distance of station closest to the epicenter (degree) 0.13490
Epicentral distance of station farthest from the epicenter (degree) 0.75813
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 48630881
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-08-03 02:11:44

ML:1.3

Field Value
Value 1.3
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 52348191
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-12-05 10:40:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.RRL.HHE. 2017-08-03T01:57:32.09 0.6 undecidable manual S 316 56.6988 50 -1.56 29
GU.GBOS.HHZ. 2017-08-03T01:57:32.98 0.6 undecidable manual S 128 55.5 50 -0.35 50
GU.CANO.HHZ. 2017-08-03T01:57:31.24 0.6 undecidable manual P 117 84.1491 50 1.15 35
GU.ENR.HHZ. 2017-08-03T01:57:27.50 0.3 undecidable manual S 164 37.7289 101 -1.06 59
GU.GBOS.HHZ. 2017-08-03T01:57:26.35 0.1 undecidable manual P 128 55.5 50 0.67 91
GU.STV.HHZ. 2017-08-03T01:57:26.73 0.3 undecidable manual S 176 34.3434 102 -0.68 70
GU.BHB.HHZ. 2017-08-03T01:57:25.52 0.6 undecidable manual S 356 31.2465 103 -0.84 44
GU.RRL.HHE. 2017-08-03T01:57:25.78 0.3 undecidable manual P 316 56.6988 50 -0.08 79
GU.ENR.HHZ. 2017-08-03T01:57:23.08 0.3 undecidable manual P 164 37.7289 101 0.16 81
GU.STV.HHZ. 2017-08-03T01:57:22.54 0.3 undecidable manual P 176 34.3434 102 0.28 79
GU.PZZ.HHZ. 2017-08-03T01:57:21.11 0.3 undecidable manual S 249 14.9739 116 0.11 85
GU.BHB.HHZ. 2017-08-03T01:57:21.80 0.3 undecidable manual P 356 31.2465 103 0.14 82
GU.PZZ.HHZ. 2017-08-03T01:57:19.16 0.1 undecidable manual P 249 14.9739 116 0.6 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.PZZ.HHN. ML:1.3 0.000209 0.3 AML other m 2017-08-03T01:57:21.31
GU.PZZ.HHE. ML:1.4 0.0002545 0.6 AML other m 2017-08-03T01:57:21.62
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