Earthquake with magnitude of ML 1.2 on date 04-05-2021 and time 01:37:53 (Italy) in region 3 km NE Cervasca (CN)

A magnitude ML 1.2 earthquake occured in region: 3 km NE Cervasca (CN), on

  • 03-05-2021 23:37:53 (UTC)
  • 04-05-2021 01:37:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.4110, 7.4850 at 8 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
Cervasca CN 3 5013 5013
Caraglio CN 5 6836 11849
Bernezzo CN 5 4104 15953
Cuneo CN 6 56081 72034
Vignolo CN 6 2600 74634
Valgrana CN 8 786 75420
Roccasparvera CN 8 741 76161
Borgo San Dalmazzo CN 9 12468 88629
Montemale di Cuneo CN 9 241 88870
Rittana CN 9 109 88979
Gaiola CN 10 582 89561
Boves CN 10 9835 99396
Tarantasca CN 10 2122 101518
Roccavione CN 11 2761 104279
Busca CN 12 10181 114460
Dronero CN 12 7035 121495
Villar San Costanzo CN 12 1547 123042
Valloriate CN 12 109 123151
Moiola CN 13 234 123385
Monterosso Grana CN 13 505 123890
Castelletto Stura CN 13 1351 125241
Robilante CN 13 2306 127547
Centallo CN 13 6954 134501
Roccabruna CN 14 1585 136086
Peveragno CN 14 5543 141629
Beinette CN 14 3423 145052
Rossana CN 15 908 145960
Villafalletto CN 16 2925 148885
Montanera CN 16 760 149645
Roaschia CN 16 107 149752
Pradleves CN 16 250 150002
Margarita CN 16 1441 151443
Valdieri CN 16 935 152378
Costigliole Saluzzo CN 17 3375 155753
Cartignano CN 17 190 155943
Piasco CN 18 2774 158717
Morozzo CN 18 2086 160803
Chiusa di Pesio CN 18 3676 164479
Demonte CN 18 2003 166482
Venasca CN 18 1437 167919
Valmala CN 19 52 167971
Pianfei CN 19 2202 170173
Vottignasco CN 19 537 170710
Vernante CN 19 1178 171888
Entracque CN 20 774 172662

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km W of Cuneo (56081 inhabitants)
68 Km S of Moncalieri (57294 inhabitants)
70 Km NW of Sanremo (54807 inhabitants)
75 Km S of Torino (890529 inhabitants)
79 Km SW of Asti (76202 inhabitants)
80 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 1.2 2021-05-03
23:37:53
44.4112 7.4852 9 2021-12-29
11:12:16
Bollettino Sismico Italiano INGV 93419721
Reviewed
Rev100
ML 1.3 2021-05-03
23:37:53
44.4112 7.4985 9 2021-05-03
23:42:34
Sala Sismica INGV-Roma 89751801
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-05-03 23:37:53 ± 0.21
Latitude 44.4112 ± 0.0126
Longitude 7.4852 ± 0.0176
Depth (km) 9 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 93419721

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1620
Semi-minor axis of confidence ellipse (meter) 777
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 226
Circular confidence region, given by single value of horizontal uncertainty (meter) 1620.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 118
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.45
Epicentral distance of station closest to the epicenter (degree) 0.18796
Epicentral distance of station farthest from the epicenter (degree) 0.62143
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:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 2
Type of magnitude ML
Reference to an origin 93419721
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-07-30 23:33:52

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 2
Type of magnitude ML
Reference to an origin 89751801
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-05-03 23:42:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.QLNO.HHZ. 2021-05-03T23:38:14.27 0.6 undecidable manual S 98 68.9754 50 -0.5 44
GU.IMI.HHZ. 2021-05-03T23:38:13.13 0.6 undecidable manual S 150 64.2912 50 -0.41 45
GU.BHB.HHZ. 2021-05-03T23:38:08.80 0.6 undecidable manual S 340 50.2164 50 -0.98 37
IV.QLNO.HHZ. 2021-05-03T23:38:06.29 0.3 undecidable manual P 98 68.9754 50 0.58 64
GU.IMI.HHZ. 2021-05-03T23:38:05.77 0.3 undecidable manual P 150 64.2912 50 0.77 60
GU.GBOS.HHZ. 2021-05-03T23:38:04.41 0.6 undecidable manual S 124 33.8439 50 -1 38
GU.PZZ.HHE. 2021-05-03T23:38:04.01 0.6 undecidable manual S 290 31.1466 105 -0.5 47
GU.BHB.HHZ. 2021-05-03T23:38:02.95 0.1 undecidable manual P 340 50.2164 50 0.13 99
GU.PZZ.HHE. 2021-05-03T23:38:00.03 0.1 undecidable manual P 290 31.1466 105 0.25 99
GU.ENR.HHZ. 2021-05-03T23:38:00.72 0.6 undecidable manual S 195 20.868 112 -0.41 49
GU.STV.HHZ. 2021-05-03T23:38:00.97 0.6 undecidable manual S 214 22.3554 111 -0.64 45
GU.GBOS.HHZ. 2021-05-03T23:38:00.46 0.3 undecidable manual P 124 33.8439 50 0.16 76
GU.ENR.HHZ. 2021-05-03T23:37:58.13 0.1 undecidable manual P 195 20.868 112 0.3 100
GU.STV.HHZ. 2021-05-03T23:37:58.52 0.3 undecidable manual P 214 22.3554 111 0.41 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.ENR.HHE. ML:1.4 0.00017099999999999998 0.24 AML other m 2021-05-03T23:38:01.27
GU.ENR.HHN. ML:1.1 0.0000941 0.06 AML other m 2021-05-03T23:38:01.22
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