Earthquake with magnitude of ML 1.0 on date 15-10-2021 and time 16:34:09 (Italy) in region 3 km SW Cartignano (CN)

A magnitude ML 1.0 earthquake occured in region: 3 km SW Cartignano (CN), on

  • 15-10-2021 14:34:09 (UTC)
  • 15-10-2021 16:34:09 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.456, 7.261 at 13 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
Cartignano CN 3 190 190
San Damiano Macra CN 4 430 620
Pradleves CN 4 250 870
Castelmagno CN 6 66 936
Roccabruna CN 7 1585 2521
Celle di Macra CN 7 100 2621
Monterosso Grana CN 7 505 3126
Macra CN 8 59 3185
Dronero CN 8 7035 10220
Montemale di Cuneo CN 9 241 10461
Villar San Costanzo CN 10 1547 12008
Valgrana CN 11 786 12794
Stroppo CN 12 103 12897
Valmala CN 12 52 12949
Melle CN 13 292 13241
Frassino CN 13 265 13506
Marmora CN 13 68 13574
Caraglio CN 14 6836 20410
Canosio CN 14 80 20490
Sampeyre CN 15 1022 21512
Brossasco CN 15 1084 22596
Bernezzo CN 16 4104 26700
Valloriate CN 16 109 26809
Demonte CN 16 2003 28812
Aisone CN 16 248 29060
Venasca CN 16 1437 30497
Rittana CN 16 109 30606
Prazzo CN 17 170 30776
Elva CN 17 97 30873
Rossana CN 17 908 31781
Isasca CN 18 76 31857
Gaiola CN 18 582 32439
Vinadio CN 18 644 33083
Busca CN 18 10181 43264
Moiola CN 18 234 43498
Cervasca CN 18 5013 48511
Roccasparvera CN 19 741 49252
Sambuco CN 20 92 49344
Vignolo CN 20 2600 51944
Brondello CN 20 290 52234

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km W of Cuneo (56081 inhabitants)
69 Km SW of Moncalieri (57294 inhabitants)
76 Km SW of Torino (890529 inhabitants)
82 Km NW of Sanremo (54807 inhabitants)
90 Km SW of Asti (76202 inhabitants)
98 Km W of Savona (61345 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.0 2021-10-15
14:34:09
44.4555 7.2612 13 2021-10-15
14:38:40
Sala Sismica INGV-Roma 96614571
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-15 14:34:09 ± 0.15
Latitude 44.4555 ± 0.0108
Longitude 7.2612 ± 0.0353
Depth (km) 13 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96614571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2730
Semi-minor axis of confidence ellipse (meter) 1102
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 255
Circular confidence region, given by single value of horizontal uncertainty (meter) 2730
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 129
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 14
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
Epicentral distance of station farthest from the epicenter (degree) 0.57287
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 96614571
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-15 14:38:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.RNCA.HHZ. 2021-10-15T14:34:46.65 3.0 undecidable manual Sn -0.07 0
GU.RRL.HHZ. 2021-10-15T14:34:28.88 0.6 undecidable manual S 324 0.5729 92 -0.03 48
FR.SAOF.HHZ.00 2021-10-15T14:34:26.48 0.6 undecidable manual S 156 0.5135 93 -0.67 41
GU.GBOS.HHZ. 2021-10-15T14:34:25.62 0.1 undecidable manual S 117 0.4658 93 -0.11 98
GU.BHB.HHZ. 2021-10-15T14:34:22.31 0.1 undecidable manual S 0 0.3795 94 -0.88 79
GU.RRL.HHZ. 2021-10-15T14:34:21.05 0.1 undecidable manual P 324 0.5729 92 0.36 90
FR.SAOF.HHZ.00 2021-10-15T14:34:20.15 0.3 undecidable manual P 156 0.5135 93 0.47 67
GU.GBOS.HHZ. 2021-10-15T14:34:19.35 0.1 undecidable manual P 117 0.4658 93 0.5 88
GU.ENR.HHZ. 2021-10-15T14:34:19.06 0.1 undecidable manual S 154 0.2527 98 -0.37 95
GU.BHB.HHZ. 2021-10-15T14:34:17.49 0.3 undecidable manual P 0 0.3795 94 0.1 73
GU.STV.HHZ. 2021-10-15T14:34:17.89 0.1 undecidable manual S 167 0.2158 100 -0.46 93
GU.ENR.HHZ. 2021-10-15T14:34:15.61 0.1 undecidable manual P 154 0.2527 98 0.39 95
GU.PZZ.HHZ. 2021-10-15T14:34:15.23 0.1 undecidable manual S 296 0.1151 122 -0.33 97
GU.STV.HHZ. 2021-10-15T14:34:14.89 0.1 undecidable manual P 167 0.2158 100 0.3 98
GU.PZZ.HHZ. 2021-10-15T14:34:13.30 0.1 positive manual P 296 0.1151 122 0.32 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.PZZ.HHE. ML:1.1 0.000127 0.3 AML other m 2021-10-15T14:34:15.56
GU.PZZ.HHN. ML:1.3 0.000171 0.44 AML other m 2021-10-15T14:34:15.49
GU.ENR.HHE. ML:0.9 3.965E-5 0.16 AML other m 2021-10-15T14:34:19.29
GU.ENR.HHN. ML:0.8 3.665E-5 0.42 AML other m 2021-10-15T14:34:19.44
GU.STV.HHE. ML:0.5 2.08263E-5 0.2176 AML other m 2021-10-15T14:34:17.96
GU.GBOS.HHE. ML:1 2.324088E-5 0.2816 AML other m 2021-10-15T14:34:25.97
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