Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 27-03-2020 and time 07:41:26 (UTC) in region 3 km S Cartignano (CN)

A magnitude ML 0.9 earthquake occured in region: 3 km S Cartignano (CN), on

  • 27-03-2020 07:41:26 (UTC)
  • 27-03-2020 08:41:26 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.4530, 7.2980 at 6 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.

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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
Pradleves CN 4 250 440
Roccabruna CN 4 1585 2025
San Damiano Macra CN 5 430 2455
Monterosso Grana CN 5 505 2960
Dronero CN 6 7035 9995
Montemale di Cuneo CN 6 241 10236
Villar San Costanzo CN 7 1547 11783
Valgrana CN 8 786 12569
Castelmagno CN 8 66 12635
Celle di Macra CN 10 100 12735
Macra CN 11 59 12794
Valmala CN 11 52 12846
Caraglio CN 11 6836 19682
Melle CN 12 292 19974
Bernezzo CN 13 4104 24078
Frassino CN 13 265 24343
Brossasco CN 14 1084 25427
Rittana CN 14 109 25536
Valloriate CN 14 109 25645
Venasca CN 15 1437 27082
Rossana CN 15 908 27990
Stroppo CN 15 103 28093
Demonte CN 15 2003 30096
Busca CN 16 10181 40277
Cervasca CN 16 5013 45290
Gaiola CN 16 582 45872
Marmora CN 16 68 45940
Moiola CN 16 234 46174
Isasca CN 16 76 46250
Sampeyre CN 17 1022 47272
Aisone CN 17 248 47520
Roccasparvera CN 17 741 48261
Canosio CN 17 80 48341
Vignolo CN 17 2600 50941
Piasco CN 18 2774 53715
Brondello CN 19 290 54005
Vinadio CN 19 644 54649
Elva CN 19 97 54746
Costigliole Saluzzo CN 19 3375 58121
Prazzo CN 20 170 58291

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km W of Cuneo (56081 inhabitants)
68 Km SW of Moncalieri (57294 inhabitants)
75 Km SW of Torino (890529 inhabitants)
80 Km NW of Sanremo (54807 inhabitants)
87 Km SW of Asti (76202 inhabitants)
96 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 0.9 2020-03-27
07:41:26		 44.4533 7.2983 6 2020-07-18
21:08:41		 Bollettino Sismico Italiano INGV 80471521
Reviewed
Rev100 		ML 1.0 2020-03-27
07:41:26		 44.4208 7.2315 17 2020-03-27
07:46:27		 Sala Sismica INGV-Roma 77612271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-27 07:41:26 ± 0.17
Latitude 44.4533 ± 0.0099
Longitude 7.2983 ± 0.0265
Depth (km) 6 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 80471521

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2074
Semi-minor axis of confidence ellipse (meter) 914
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 247
Circular confidence region, given by single value of horizontal uncertainty (meter) 2070.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 120
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) 0.48
Epicentral distance of station closest to the epicenter (degree) 0.14029
Epicentral distance of station farthest from the epicenter (degree) 0.69518
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 2
Type of magnitude ML
Reference to an origin 77612271
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-27 07:46:27

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 2
Type of magnitude ML
Reference to an origin 80471521
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-06-24 14:43:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.RSP.HNN. 2020-03-27T07:41:49.23 0.6 undecidable manual S 358 77.1672 50 -1.34 27
GU.GBOS.HHZ. 2020-03-27T07:41:42.85 0.6 undecidable manual S 118 48.9177 50 -0.2 46
GU.RSP.HNN. 2020-03-27T07:41:40.40 0.3 undecidable manual P 358 77.1672 50 0.04 69
GU.BHB.HHZ. 2020-03-27T07:41:40.88 0.3 undecidable manual S 356 42.4242 50 -0.43 68
GU.GBOS.HHZ. 2020-03-27T07:41:36.73 0.3 undecidable manual P 118 48.9177 50 0.71 65
GU.ENR.HHZ. 2020-03-27T07:41:35.51 0.3 undecidable manual S 159 26.9508 103 -0.51 68
GU.BHB.HHZ. 2020-03-27T07:41:35.30 0.1 undecidable manual P 356 42.4242 50 0.28 96
GU.STV.HHZ. 2020-03-27T07:41:33.98 0.3 undecidable manual S 175 23.1546 105 -0.77 62
GU.ENR.HHZ. 2020-03-27T07:41:32.46 0.3 undecidable manual P 159 26.9508 103 0.49 71
GU.PZZ.HHZ. 2020-03-27T07:41:32.05 0.3 undecidable manual S 292 15.5733 112 -0.2 75
GU.STV.HHZ. 2020-03-27T07:41:31.48 0.1 undecidable manual P 175 23.1546 105 0.25 100
GU.PZZ.HHZ. 2020-03-27T07:41:30.17 0.1 positive manual P 292 15.5733 112 0.38 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.PZZ.HHN. ML:1.0 0.0001049 0.2 AML other m 2020-03-27T07:41:32.29
GU.PZZ.HHE. ML:0.8 0.00006379999999999999 0.18 AML other m 2020-03-27T07:41:32.47
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