Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 02-10-2021 and time 23:36:18 (UTC) in region 1 km N Casella (GE)

A magnitude ML 2.2 earthquake occured in region: 1 km N Casella (GE), on

  • 02-10-2021 23:36:18 (UTC)
  • 03-10-2021 01:36:18 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.5490, 9.0000 at 9 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
Casella GE 2 3144 3144
Savignone GE 2 3205 6349
Crocefieschi GE 5 548 6897
Busalla GE 5 5563 12460
Montoggio GE 5 2067 14527
Valbrevenna GE 5 798 15325
Vobbia GE 7 409 15734
Serra Riccò GE 7 7885 23619
Mignanego GE 7 3675 27294
Ronco Scrivia GE 8 4417 31711
Sant'Olcese GE 8 5906 37617
Campomorone GE 10 6996 44613
Ceranesi GE 10 3875 48488
Fraconalto AL 11 336 48824
Mongiardino Ligure AL 11 165 48989
Isola del Cantone GE 11 1540 50529
Davagna GE 12 1884 52413
Torriglia GE 13 2311 54724
Bargagli GE 14 2708 57432
Roccaforte Ligure AL 15 136 57568
Voltaggio AL 15 738 58306
Propata GE 15 142 58448
Cabella Ligure AL 16 528 58976
Lumarzo GE 16 1535 60511
Genova GE 16 586655 647166
Carrega Ligure AL 16 84 647250
Grondona AL 17 510 647760
Rondanina GE 17 62 647822
Arquata Scrivia AL 18 6409 654231
Albera Ligure AL 18 325 654556
Rocchetta Ligure AL 18 200 654756
Carrosio AL 18 510 655266
Neirone GE 19 916 656182
Fascia GE 19 81 656263
Cantalupo Ligure AL 19 527 656790
Vignole Borbera AL 20 2182 658972
Bogliasco GE 20 4488 663460
Bosio AL 20 1227 664687
Uscio GE 20 2284 666971

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km NE of Genova (586655 inhabitants)
49 Km NE of Savona (61345 inhabitants)
51 Km SE of Alessandria (93943 inhabitants)
72 Km S of Pavia (72576 inhabitants)
74 Km SE of Asti (76202 inhabitants)
78 Km SW of Piacenza (102191 inhabitants)
82 Km NW of La Spezia (93959 inhabitants)
86 Km S of Vigevano (63310 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 2.2 2021-10-02
23:36:18		 44.5493 8.9997 9 2022-03-30
13:04:15		 Bollettino Sismico Italiano INGV 97387471
Reviewed
Rev100 		ML 2.2 2021-10-02
23:36:18		 44.5445 9.0225 9 2021-10-02
23:43:58		 Sala Sismica INGV-Roma 96152081
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-02 23:36:18 ± 0.11
Latitude 44.5493 ± 0.0072
Longitude 8.9997 ± 0.0076
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 97387471

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 791
Semi-minor axis of confidence ellipse (meter) 468
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 163
Circular confidence region, given by single value of horizontal uncertainty (meter) 790.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 61
Number of associated phases, regardless of their use for origin computation 54
Number of defining phases 47
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.45870
Number of stations at which the event was observed 40
Number of stations from which data was used for origin computation 33
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 50
Type of magnitude ML
Reference to an origin 96152081
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-02 23:43:58

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 52
Type of magnitude ML
Reference to an origin 97387471
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-07 17:37:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
RF.GEPF.HHZ. 2021-10-02T23:38:09.12 3.0 undecidable manual Sg 16.110001 0
IV.CPGN.EHZ. 2021-10-02T23:37:41.02 3.0 undecidable manual Sg 9.91 0
IV.BRES.EHZ. 2021-10-02T23:37:40.90 3.0 undecidable manual Sn 0.19 0
IV.CERA.HHZ. 2021-10-02T23:37:34.71 3.0 positive manual Pn 5.04 0
IV.TERO.HHZ. 2021-10-02T23:37:19.50 3.0 undecidable manual Pn 1.52 0
IV.CRTC.HHZ. 2021-10-02T23:37:15.98 3.0 undecidable manual Pg 11.11 0
IV.BARO.EHZ. 2021-10-02T23:37:06.32 3.0 positive manual Pn -2.52 0
GU.IMI.HHZ. 2021-10-02T23:36:51.76 0.6 undecidable manual S 232 112.8981 50 0.08 41
GU.EQUI.HHZ. 2021-10-02T23:36:48.08 0.6 undecidable manual S 115 100.9212 50 -0.38 39
IV.ZCCA.HHZ. 2021-10-02T23:36:46.34 1.0 undecidable manual P 97 158.1195 50 1.68 9
GU.RORO.HHZ. 2021-10-02T23:36:45.44 0.6 undecidable manual S 237 88.4448 50 0.29 41
GU.CIRO.HHZ. 2021-10-02T23:36:44.20 0.3 undecidable manual P 317 161.9157 50 -1.05 39
IV.MDI.HHZ. 2021-10-02T23:36:44.67 0.3 undecidable manual P 22 146.5422 50 1.79 27
GU.POPM.HHZ. 2021-10-02T23:36:44.06 0.3 undecidable manual P 111 150.3384 50 0.6 50
GU.PZZ.HHZ. 2021-10-02T23:36:43.18 0.3 undecidable manual P 269 149.0397 50 -0.09 56
IV.SGAL.EHZ. 2021-10-02T23:36:43.40 0.6 undecidable manual P 42 152.3364 50 -0.38 35
IV.PII.HHZ. 2021-10-02T23:36:43.16 0.6 undecidable manual P 127 152.2365 50 -0.61 33
GU.RSP.HHZ. 2021-10-02T23:36:43.55 0.3 undecidable manual P 297 151.737 50 -0.14 55
GU.BHB.HHZ. 2021-10-02T23:36:42.14 0.3 undecidable manual P 284 140.5482 50 0.17 56
GU.GSCL.HHZ. 2021-10-02T23:36:41.33 0.3 undecidable manual P 99 127.6722 50 1.35 37
GU.MAIM.HHZ. 2021-10-02T23:36:41.93 0.3 undecidable manual P 120 138.0618 50 0.36 54
IV.BDI.HHZ. 2021-10-02T23:36:41.93 0.3 undecidable manual P 113 137.7621 50 0.4 54
GU.STV.HHZ. 2021-10-02T23:36:41.56 0.3 undecidable manual P 256 136.863 50 0.17 57
GU.CANO.HHZ. 2021-10-02T23:36:40.39 0.6 undecidable manual S 238 71.373 50 -0.19 43
GU.CARD.HHZ. 2021-10-02T23:36:40.96 0.3 undecidable manual P 116 131.2686 50 0.43 54
GU.ENR.HHZ. 2021-10-02T23:36:40.41 0.3 undecidable manual P 255 130.2696 50 0.03 59
GU.ROTM.HHZ. 2021-10-02T23:36:38.64 0.6 undecidable manual S 303 60.8946 50 0.85 36
IV.QLNO.HHZ. 2021-10-02T23:36:37.18 0.6 undecidable manual S 244 57.498 50 0.31 43
GU.IMI.HHZ. 2021-10-02T23:36:37.88 0.3 undecidable manual P 232 112.8981 50 0.17 60
GU.MGRO.HHZ. 2021-10-02T23:36:37.11 0.3 undecidable manual P 240 110.0121 50 -0.15 60
IV.MONC.HHZ. 2021-10-02T23:36:37.49 0.3 undecidable manual P 305 102.5196 50 1.39 38
GU.EQUI.HHZ. 2021-10-02T23:36:36.12 0.1 undecidable manual P 115 100.9212 50 0.27 80
GU.GBOS.HHZ. 2021-10-02T23:36:35.14 0.3 undecidable manual P 250 98.0241 50 -0.27 60
GU.RORO.HHZ. 2021-10-02T23:36:33.52 0.3 undecidable manual P 237 88.4448 50 -0.41 60
GU.GRAM.HHZ. 2021-10-02T23:36:33.70 0.6 undecidable manual P 94 84.5487 50 0.38 40
IV.MSSA.HHZ. 2021-10-02T23:36:33.67 0.6 undecidable manual S 122 48.5181 50 -0.8 37
IV.SARZ.HHZ. 2021-10-02T23:36:32.19 0.6 undecidable manual S 349 35.9418 50 1.07 34
IV.BOB.HNZ. 2021-10-02T23:36:32.42 0.6 undecidable manual S 55 42.9237 50 -0.55 42
GU.CANO.HHZ. 2021-10-02T23:36:30.85 0.3 undecidable manual P 238 71.373 50 -0.45 61
GU.PCP.HHZ. 2021-10-02T23:36:30.24 0.3 undecidable manual S 269 35.9418 50 -0.87 55
GU.ROTM.HHZ. 2021-10-02T23:36:29.82 0.3 undecidable manual P 303 60.8946 50 0.13 67
IV.QLNO.HHZ. 2021-10-02T23:36:28.56 0.1 undecidable manual P 244 57.498 50 -0.6 80
IV.MSSA.HHZ. 2021-10-02T23:36:27.53 0.3 undecidable manual P 122 48.5181 50 -0.24 67
IV.BOB.HNZ. 2021-10-02T23:36:26.81 0.3 undecidable manual P 55 42.9237 50 -0.1 69
IV.SARZ.HHZ. 2021-10-02T23:36:26.01 0.1 positive manual P 349 35.9418 50 0.17 92
GU.GORR.HHZ. 2021-10-02T23:36:26.73 0.3 undecidable manual S 74 24.0537 111 -0.81 58
GU.GENL.EHZ. 2021-10-02T23:36:25.36 0.3 undecidable manual S 188 16.0728 119 0.32 70
GU.PCP.HHZ. 2021-10-02T23:36:25.00 0.1 undecidable manual P 269 35.9418 50 -0.84 75
IT.GNV.HGZ. 2021-10-02T23:36:24.76 0.3 undecidable manual S 202 14.0748 123 0.31 70
GU.GORR.HHZ. 2021-10-02T23:36:23.14 0.1 negative manual P 74 24.0537 111 -0.63 84
GU.RNCA.HHZ. 2021-10-02T23:36:23.18 0.3 undecidable manual S 204 9.4794 134 0 75
IT.GNV.HGZ. 2021-10-02T23:36:22.09 0.1 positive manual P 202 14.0748 123 0.11 97
GU.GENL.EHZ. 2021-10-02T23:36:22.48 0.1 positive manual P 188 16.0728 119 0.15 96
GU.RNCA.HHZ. 2021-10-02T23:36:21.26 0.1 positive manual P 204 9.4794 134 0 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.GENL.EHE. ML:2.2 0.0014700000000000002 0.18 AML other m 2021-10-02T23:36:26.45
GU.GENL.EHN. ML:2.4 0.00242 0.22 AML other m 2021-10-02T23:36:26.60
GU.GORR.HHE. ML:2.6 0.002275 0.34 AML other m 2021-10-02T23:36:28.47
GU.GORR.HHN. ML:2.5 0.0020800000000000003 0.2 AML other m 2021-10-02T23:36:28.52
IV.SARZ.HHN. ML:2.7 0.001865 1.36 AML other m 2021-10-02T23:36:34.95
IV.MSSA.HHE. ML:2.9 0.0024 0.1 AML other m 2021-10-02T23:36:34.43
IV.SARZ.HNN. ML:2.7 0.001815 0.76 AML other m 2021-10-02T23:36:35.56
IV.SARZ.HHE. ML:2.6 0.0016549999999999998 0.38 AML other m 2021-10-02T23:36:36.38
IV.SARZ.HNE. ML:2.6 0.00163 0.38 AML other m 2021-10-02T23:36:36.39
IV.MSSA.HHN. ML:2.6 0.0012275 0.1 AML other m 2021-10-02T23:36:36.60
GU.CANO.HHN. ML:2.3 0.00033099999999999997 0.28 AML other m 2021-10-02T23:36:42.86
GU.ROTM.HHE. ML:2.6 0.0008165 1.54 AML other m 2021-10-02T23:36:42.22
GU.CANO.HHE. ML:2.3 0.00035499999999999996 1.4 AML other m 2021-10-02T23:36:43.88
GU.ROTM.HHN. ML:2.5 0.0007149999999999999 0.4 AML other m 2021-10-02T23:36:47.55
GU.GRAM.HHE. ML:2.4 0.00033199999999999994 0.42 AML other m 2021-10-02T23:36:50.21
GU.GBOS.HHE. ML:1.8 0.00006775000000000001 1.32 AML other m 2021-10-02T23:36:51.03
GU.EQUI.HHE. ML:2.1 0.00011449999999999999 1.34 AML other m 2021-10-02T23:36:52.71
GU.GBOS.HHN. ML:2.0 0.00011245000000000001 1.46 AML other m 2021-10-02T23:36:52.16
GU.EQUI.HHN. ML:2.0 0.00010300000000000001 1.02 AML other m 2021-10-02T23:36:52.58
GU.IMI.HHE. ML:2.2 0.000121 0.28 AML other m 2021-10-02T23:36:53.79
GU.GRAM.HHN. ML:2.2 0.00021700000000000002 1.64 AML other m 2021-10-02T23:36:54.98
GU.IMI.HHN. ML:2.3 0.0001475 0.32 AML other m 2021-10-02T23:36:54.27
GU.MGRO.HHN. ML:2.2 0.0001237 1.2 AML other m 2021-10-02T23:36:54.38
GU.MGRO.HHE. ML:2.1 0.00010045000000000002 0.94 AML other m 2021-10-02T23:36:54.27
GU.GSCL.HHE. ML:2.0 0.00007630000000000001 1.54 AML other m 2021-10-02T23:36:58.00
GU.ENR.HHN. ML:2.0 0.00007065 0.94 AML other m 2021-10-02T23:36:59.17
GU.STV.HHN. ML:1.8 0.000038650000000000004 0.42 AML other m 2021-10-02T23:36:59.71
GU.CARD.HHE. ML:2.6 0.0002635 0.16 AML other m 2021-10-02T23:37:00.04
GU.CARD.HHN. ML:2.4 0.0001785 0.74 AML other m 2021-10-02T23:37:00.01
GU.MAIM.HHE. ML:1.8 0.000038849999999999996 0.48 AML other m 2021-10-02T23:37:01.26
IV.BDI.HHE. ML:2.3 0.0001325 0.48 AML other m 2021-10-02T23:37:01.65
GU.GSCL.HHN. ML:2.1 0.0000839 1.28 AML other m 2021-10-02T23:37:02.31
GU.MAIM.HHN. ML:2.1 0.00007594999999999999 0.4 AML other m 2021-10-02T23:37:02.54
GU.ENR.HHE. ML:1.9 0.00004894999999999999 0.78 AML other m 2021-10-02T23:37:02.65
IV.BDI.HHN. ML:2.2 0.00010055 0.84 AML other m 2021-10-02T23:37:02.67
IV.MONC.HHE. ML:2.4 0.00022250000000000001 1.1 AML other m 2021-10-02T23:37:02.12
GU.BHB.HHN. ML:1.8 0.00004165 0.52 AML other m 2021-10-02T23:37:03.05
IV.MONC.HHN. ML:2.4 0.0002475 0.42 AML other m 2021-10-02T23:37:03.84
GU.BHB.HNN. ML:2.0 0.00005565 0.68 AML other m 2021-10-02T23:37:04.27
IV.PII.HHE. ML:2.3 0.00009389999999999999 0.78 AML other m 2021-10-02T23:37:04.65
IV.PII.HHN. ML:2.2 0.00008324999999999999 1.06 AML other m 2021-10-02T23:37:05.37
GU.BHB.HHE. ML:1.8 0.00003825 1.04 AML other m 2021-10-02T23:37:06.65
GU.RSP.HHN. ML:1.8 0.0000356 0.46 AML other m 2021-10-02T23:37:06.66
GU.STV.HHE. ML:1.8 0.00003365 1.28 AML other m 2021-10-02T23:37:07.96
GU.CIRO.HHN. ML:2.2 0.0000637 0.44 AML other m 2021-10-02T23:37:07.76
IV.MDI.HHN. ML:2.0 0.000061 0.48 AML other m 2021-10-02T23:37:08.75
GU.RSP.HHE. ML:1.8 0.00003205 0.6 AML other m 2021-10-02T23:37:09.03
GU.CIRO.HHE. ML:2.2 0.000066 0.5 AML other m 2021-10-02T23:37:09.62
IV.MDI.HHE. ML:1.8 0.0000316 0.8 AML other m 2021-10-02T23:37:10.42
GU.BHB.HNE. ML:2.0 0.00005715 0.42 AML other m 2021-10-02T23:37:11.62
IV.SGAL.EHE. ML:2.0 0.00004545000000000001 0.48 AML other m 2021-10-02T23:37:12.80
IV.SGAL.EHN. ML:1.8 0.00003485000000000001 0.4 AML other m 2021-10-02T23:37:15.53
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
Waveforms Seismic signals in miniseed + resp format Download