Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 30-09-2022 and time 14:25:44 (UTC) in region 1 km W Davagna (GE)

A magnitude ML 2.0 earthquake occured in region: 1 km W Davagna (GE), on

  • 30-09-2022 14:25:44 (UTC)
  • 30-09-2022 16:25:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.4630, 9.0750 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.

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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
Davagna GE 1 1884 1884
Bargagli GE 2 2708 4592
Lumarzo GE 5 1535 6127
Montoggio GE 6 2067 8194
Sant'Olcese GE 9 5906 14100
Uscio GE 9 2284 16384
Torriglia GE 9 2311 18695
Bogliasco GE 9 4488 23183
Neirone GE 9 916 24099
Pieve Ligure GE 10 2544 26643
Casella GE 10 3144 29787
Sori GE 10 4205 33992
Valbrevenna GE 11 798 34790
Tribogna GE 11 614 35404
Avegno GE 11 2525 37929
Moconesi GE 12 2614 40543
Serra Riccò GE 12 7885 48428
Recco GE 12 9752 58180
Genova GE 13 586655 644835
Savignone GE 13 3205 648040
Cicagna GE 14 2502 650542
Crocefieschi GE 14 548 651090
Propata GE 14 142 651232
Camogli GE 14 5378 656610
Mignanego GE 15 3675 660285
Favale di Malvaro GE 15 466 660751
Ceranesi GE 15 3875 664626
Campomorone GE 15 6996 671622
Vobbia GE 16 409 672031
Montebruno GE 16 240 672271
Busalla GE 16 5563 677834
Rondanina GE 16 62 677896
Lorsica GE 16 468 678364
Orero GE 17 565 678929
Coreglia Ligure GE 17 285 679214
Fascia GE 17 81 679295
Rapallo GE 18 29796 709091
Santa Margherita Ligure GE 18 9338 718429
Ronco Scrivia GE 19 4417 722846
Carrega Ligure AL 19 84 722930
Mongiardino Ligure AL 20 165 723095

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km E of Genova (586655 inhabitants)
50 Km E of Savona (61345 inhabitants)
62 Km SE of Alessandria (93943 inhabitants)
72 Km NW of La Spezia (93959 inhabitants)
81 Km S of Pavia (72576 inhabitants)
82 Km SW of Piacenza (102191 inhabitants)
84 Km SE of Asti (76202 inhabitants)
92 Km W of Carrara (63133 inhabitants)
97 Km S of Vigevano (63310 inhabitants)
97 Km W of Massa (69479 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 2.0 2022-09-30
14:25:44		 44.4632 9.0753 8 2024-03-01
15:28:15		 Bollettino Sismico Italiano INGV 113586651
Reviewed
Rev100 		ML 2.0 2022-09-30
14:25:43		 44.4642 9.0692 9 2022-09-30
14:39:17		 Sala Sismica INGV-Roma 110335471
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-09-30 14:25:44 ± 0.12
Latitude 44.4632 ± 0.0117
Longitude 9.0753 ± 0.0101
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 113586651

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1355
Semi-minor axis of confidence ellipse (meter) 512
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 346
Circular confidence region, given by single value of horizontal uncertainty (meter) 1350.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 114
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.39
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.34089
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 110335471
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-09-30 14:39:17

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 113586651
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-04-19 10:44:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ECTS.HHZ. 2022-09-30T14:27:40.50 3.0 positive manual Pn -1.43 0
IV.IFIL.HHZ. 2022-09-30T14:27:28.07 3.0 positive manual Pn -2.77 0
IV.ARRO.EHZ. 2022-09-30T14:27:23.85 3.0 undecidable manual Sg 5.68 0
IV.MMO1.EHZ. 2022-09-30T14:27:18.50 3.0 undecidable manual Sn -4.01 0
IV.ATMI.HHZ. 2022-09-30T14:27:07.53 3.0 undecidable manual Sg 6.75 0
IV.SFI.EHZ. 2022-09-30T14:26:50.57 3.0 undecidable manual Sg 2.02 0
IV.IMOL.HNZ. 2022-09-30T14:26:44.47 3.0 undecidable manual Sn -0.2 0
OX.CIMO.HHZ. 2022-09-30T14:26:36.43 3.0 undecidable manual Pn 3.34 0
IV.PARC.HHZ. 2022-09-30T14:26:31.40 3.0 undecidable manual Pg 6.2 0
IV.ATVO.HHZ. 2022-09-30T14:26:31.89 3.0 undecidable manual Pg 3.7 0
IV.ATPI.EHZ. 2022-09-30T14:26:30.45 3.0 negative manual Pg 2.7 0
GU.BHB.HHZ. 2022-09-30T14:26:09.63 0.3 undecidable manual P 287 148.8399 50 0.8 46
GU.EQUI.HHZ. 2022-09-30T14:26:00.28 0.3 undecidable manual P 111 91.6416 50 0.27 62
GU.CANO.HHE. 2022-09-30T14:25:58.46 0.3 undecidable manual P 247 72.2721 50 1.43 39
GU.PCP.HHZ. 2022-09-30T14:25:58.07 0.3 undecidable manual S 282 42.8238 50 -0.55 63
GU.GRAM.HHZ. 2022-09-30T14:25:58.26 0.3 undecidable manual P 87 78.366 50 0.29 63
IV.PLMA.HHZ. 2022-09-30T14:25:57.80 0.6 undecidable manual P 126 76.9674 50 0.05 44
IV.MSSA.HHZ. 2022-09-30T14:25:56.84 0.6 undecidable manual S 115 38.628 50 -0.67 40
IV.BOB.HNE. 2022-09-30T14:25:53.20 0.3 undecidable manual P 41 44.8218 50 0.41 65
GU.GORR.HHZ. 2022-09-30T14:25:52.50 0.6 undecidable manual S 47 23.4543 109 -0.22 47
IV.MSSA.HHZ. 2022-09-30T14:25:51.40 0.3 undecidable manual P 115 38.628 50 -0.44 66
GU.PCP.HHZ. 2022-09-30T14:25:51.91 0.1 undecidable manual P 282 42.8238 50 -0.57 83
IT.GNV.HGZ. 2022-09-30T14:25:49.04 0.6 undecidable manual S 253 11.877 125 -0.06 50
GU.GORR.HHZ. 2022-09-30T14:25:49.05 0.1 undecidable manual P 47 23.4543 109 -0.03 98
GU.RNCA.HHZ. 2022-09-30T14:25:48.38 0.6 undecidable manual S 275 9.879 130 -0.17 49
GU.GENL.EHZ. 2022-09-30T14:25:48.56 0.6 undecidable manual S 233 10.4784 128 -0.16 49
IT.GNV.HGZ. 2022-09-30T14:25:47.04 0.1 undecidable manual P 253 11.877 125 0.05 100
GU.GENL.EHZ. 2022-09-30T14:25:46.81 0.1 undecidable manual P 233 10.4784 128 0.04 100
GU.RNCA.HHZ. 2022-09-30T14:25:46.73 0.1 undecidable manual P 275 9.879 130 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.GENL.EHN. ML:2.0 0.001405 1.46 AML other m 2022-09-30T14:25:48.73
GU.GENL.EHE. ML:1.8 0.0008825 0.9 AML other m 2022-09-30T14:25:49.50
GU.GORR.HHE. ML:1.9 0.000561 1.86 AML other m 2022-09-30T14:25:52.95
GU.GORR.HHN. ML:1.9 0.0005620000000000001 0.56 AML other m 2022-09-30T14:25:53.09
IV.MSSA.HHN. ML:2.1 0.0005229999999999999 0.96 AML other m 2022-09-30T14:25:58.01
IV.MSSA.HHE. ML:2.2 0.0006225 0.1 AML other m 2022-09-30T14:25:58.55
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