Earthquake with magnitude of ML 1.0 on date 24-11-2021 and time 15:35:13 (Italy) in region 1 km NW Rossana (CN)

A magnitude ML 1.0 earthquake occured in region: 1 km NW Rossana (CN), on

  • 24-11-2021 14:35:13 (UTC)
  • 24-11-2021 15:35:13 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.555, 7.428 at 20 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
Rossana CN 1 908 908
Venasca CN 3 1437 2345
Piasco CN 3 2774 5119
Costigliole Saluzzo CN 5 3375 8494
Isasca CN 5 76 8570
Brondello CN 5 290 8860
Brossasco CN 6 1084 9944
Busca CN 6 10181 20125
Valmala CN 7 52 20177
Pagno CN 7 585 20762
Verzuolo CN 7 6459 27221
Castellar CN 8 295 27516
Manta CN 8 3787 31303
Melle CN 9 292 31595
Villar San Costanzo CN 9 1547 33142
Villafalletto CN 9 2925 36067
Martiniana Po CN 9 734 36801
Gambasca CN 11 371 37172
Dronero CN 11 7035 44207
Roccabruna CN 11 1585 45792
Saluzzo CN 12 16960 62752
Revello CN 12 4262 67014
Tarantasca CN 12 2122 69136
Vottignasco CN 12 537 69673
Frassino CN 12 265 69938
Rifreddo CN 12 1078 71016
Lagnasco CN 13 1453 72469
Sanfront CN 13 2395 74864
Montemale di Cuneo CN 14 241 75105
Cartignano CN 14 190 75295
Centallo CN 14 6954 82249
Envie CN 15 2074 84323
Caraglio CN 15 6836 91159
San Damiano Macra CN 15 430 91589
Valgrana CN 17 786 92375
Scarnafigi CN 18 2162 94537
Monterosso Grana CN 18 505 95042
Bernezzo CN 18 4104 99146
Paesana CN 19 2784 101930
Genola CN 19 2625 104555
Pradleves CN 19 250 104805
Sampeyre CN 19 1022 105827
Cervasca CN 19 5013 110840

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km NW of Cuneo (56081 inhabitants)
54 Km SW of Moncalieri (57294 inhabitants)
61 Km SW of Torino (890529 inhabitants)
72 Km SW of Asti (76202 inhabitants)
86 Km NW of Sanremo (54807 inhabitants)
88 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 2021-11-24
14:35:13
44.5552 7.428 20 2021-11-24
14:40:42
Sala Sismica INGV-Roma 97753561
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-24 14:35:13 ± 0.19
Latitude 44.5552 ± 0.0090
Longitude 7.4280 ± 0.0164
Depth (km) 20 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 97753561

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1360
Semi-minor axis of confidence ellipse (meter) 678
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 57
Circular confidence region, given by single value of horizontal uncertainty (meter) 1360
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 160
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.41
Epicentral distance of station closest to the epicenter (degree) 0.22753
Epicentral distance of station farthest from the epicenter (degree) 0.58186
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

Field Value
Value 1
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 97753561
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-24 14:40:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.RRL.HHE. 2021-11-24T14:35:33.20 0.1 undecidable manual S 309 0.5819 100 -0.57 75
GU.GBOS.HHZ. 2021-11-24T14:35:29.01 0.3 undecidable manual S 137 0.4299 104 -0.34 69
GU.ENR.HHZ. 2021-11-24T14:35:25.96 0.3 undecidable manual S 181 0.3256 110 -0.44 67
GU.BHB.HHZ. 2021-11-24T14:35:25.24 0.3 undecidable manual S 337 0.304 112 -0.56 64
GU.STV.HHZ. 2021-11-24T14:35:25.64 0.3 undecidable manual S 193 0.3184 111 -0.56 63
GU.RRL.HHE. 2021-11-24T14:35:25.56 0.1 undecidable manual P 309 0.5819 100 0.2 95
GU.PZZ.HHZ. 2021-11-24T14:35:24.27 0.6 undecidable manual S 258 0.2275 120 0.5 49
GU.GBOS.HHZ. 2021-11-24T14:35:23.16 0.1 undecidable manual P 137 0.4299 104 0.35 96
GU.ENR.HHZ. 2021-11-24T14:35:21.10 0.6 undecidable manual P 181 0.3256 110 0 49
GU.STV.HHZ. 2021-11-24T14:35:20.94 0.6 undecidable manual P 193 0.3184 111 -0.04 49
GU.PZZ.HHZ. 2021-11-24T14:35:20.13 0.1 undecidable manual P 258 0.2275 120 0.55 97
GU.BHB.HHZ. 2021-11-24T14:35:20.81 0.1 positive manual P 337 0.304 112 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.PZZ.HHE. ML:0.9 3.899584E-5 0.2624 AML other m 2021-11-24T14:35:24.68
GU.PZZ.HHN. ML:0.6 2.18867415E-5 0.1408 AML other m 2021-11-24T14:35:25.28
GU.BHB.HNE. ML:1.1 4.569797E-5 1.2288 AML other m 2021-11-24T14:35:44.94
GU.BHB.HNN. ML:0.8 2.5673255E-5 0.8064 AML other m 2021-11-24T14:35:40.80
GU.BHB.HHE. ML:0.9 2.815501E-5 1.2416 AML other m 2021-11-24T14:35:39.35
GU.BHB.HHN. ML:0.7 1.837402E-5 0.2816 AML other m 2021-11-24T14:35:25.40
GU.STV.HHE. ML:0.8 1.91447945E-5 0.736 AML other m 2021-11-24T14:35:37.14
GU.STV.HHN. ML:1.1 4.1967505E-5 1.9392 AML other m 2021-11-24T14:35:23.43
GU.ENR.HHE. ML:0.9 2.358791E-5 0.064 AML other m 2021-11-24T14:35:26.95
GU.ENR.HHN. ML:1.4 9.6623035E-5 0.9408 AML other m 2021-11-24T14:35:20.49
GU.GBOS.HHE. ML:1.1 2.83073E-5 1.44 AML other m 2021-11-24T14:35:48.15
GU.GBOS.HHN. ML:1.2 4.6494845E-5 2.0992 AML other m 2021-11-24T14:35:41.15
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