Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 23-10-2022 and time 07:05:18 (UTC) in region 1 km N Bargagli (GE)

A magnitude ML 1.9 earthquake occured in region: 1 km N Bargagli (GE), on

  • 23-10-2022 07:05:18 (UTC)
  • 23-10-2022 09:05:18 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.4520, 9.0890 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
Bargagli GE 1 2708 2708
Davagna GE 2 1884 4592
Lumarzo GE 4 1535 6127
Uscio GE 7 2284 8411
Montoggio GE 8 2067 10478
Bogliasco GE 8 4488 14966
Neirone GE 8 916 15882
Pieve Ligure GE 9 2544 18426
Sori GE 9 4205 22631
Torriglia GE 9 2311 24942
Tribogna GE 9 614 25556
Avegno GE 10 2525 28081
Sant'Olcese GE 10 5906 33987
Moconesi GE 11 2614 36601
Recco GE 11 9752 46353
Casella GE 12 3144 49497
Valbrevenna GE 12 798 50295
Cicagna GE 13 2502 52797
Camogli GE 13 5378 58175
Genova GE 13 586655 644830
Favale di Malvaro GE 14 466 645296
Serra Riccò GE 14 7885 653181
Propata GE 15 142 653323
Savignone GE 15 3205 656528
Lorsica GE 15 468 656996
Montebruno GE 15 240 657236
Orero GE 16 565 657801
Coreglia Ligure GE 16 285 658086
Crocefieschi GE 16 548 658634
Rapallo GE 16 29796 688430
Rondanina GE 16 62 688492
Santa Margherita Ligure GE 16 9338 697830
Mignanego GE 16 3675 701505
Ceranesi GE 16 3875 705380
Campomorone GE 17 6996 712376
Vobbia GE 17 409 712785
Fascia GE 17 81 712866
Busalla GE 18 5563 718429
Portofino GE 19 420 718849
Zoagli GE 19 2472 721321
San Colombano Certenoli GE 20 2683 724004
Carrega Ligure AL 20 84 724088

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km E of Genova (586655 inhabitants)
51 Km E of Savona (61345 inhabitants)
64 Km SE of Alessandria (93943 inhabitants)
70 Km NW of La Spezia (93959 inhabitants)
82 Km S of Pavia (72576 inhabitants)
82 Km SW of Piacenza (102191 inhabitants)
86 Km SE of Asti (76202 inhabitants)
90 Km W of Carrara (63133 inhabitants)
96 Km W of Massa (69479 inhabitants)
98 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 1.9 2022-10-23
07:05:18		 44.4517 9.089 8 2024-03-01
15:27:58		 Bollettino Sismico Italiano INGV 111410081
Reviewed
Rev100 		ML 1.7 2022-10-23
07:05:18		 44.4402 9.0835 9 2022-10-23
07:10:49		 Sala Sismica INGV-Roma 111098111
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-10-23 07:05:18 ± 0.09
Latitude 44.4517 ± 0.0090
Longitude 9.0890 ± 0.0063
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 111410081

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1014
Semi-minor axis of confidence ellipse (meter) 254
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 340
Circular confidence region, given by single value of horizontal uncertainty (meter) 1010.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 128
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.65561
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 111410081
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-11-02 09:54:40

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 111098111
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-10-23 07:10:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.CANO.HHE. 2022-10-23T07:05:41.04 0.3 undecidable manual S 248 72.7716 50 0.3 65
IV.QLNO.HHE. 2022-10-23T07:05:37.66 0.6 undecidable manual S 257 60.5949 50 0.18 45
GU.PCP.HHZ. 2022-10-23T07:05:32.38 0.6 undecidable manual S 283 44.1225 50 -0.71 40
GU.CANO.HHE. 2022-10-23T07:05:30.92 0.3 undecidable manual P 248 72.7716 50 -0.3 65
IV.QLNO.HHE. 2022-10-23T07:05:30.18 0.3 undecidable manual P 257 60.5949 50 0.85 55
IV.MSSA.HHZ. 2022-10-23T07:05:30.94 0.3 undecidable manual S 114 37.1295 50 -0.28 69
IV.BOB.HNZ. 2022-10-23T07:05:27.21 0.3 undecidable manual P 39 45.1215 50 0.26 68
GU.GORR.HHZ. 2022-10-23T07:05:26.80 0.3 undecidable manual S 43 23.5542 109 -0.07 74
GU.PCP.HHZ. 2022-10-23T07:05:26.41 0.3 undecidable manual P 283 44.1225 50 -0.39 67
GU.SARZ.HHZ. 2022-10-23T07:05:25.71 3.0 undecidable manual P 0
IV.MSSA.HHZ. 2022-10-23T07:05:25.67 0.1 undecidable manual P 114 37.1295 50 -0.05 97
GU.GORR.HHZ. 2022-10-23T07:05:23.33 0.1 undecidable manual P 43 23.5542 109 0.12 98
IT.GNV.HGZ. 2022-10-23T07:05:23.40 0.3 undecidable manual S 260 12.6762 123 -0.03 76
GU.RNCA.HHZ. 2022-10-23T07:05:22.70 0.6 undecidable manual S 281 11.0778 126 -0.3 48
GU.GENL.EHZ. 2022-10-23T07:05:22.70 0.3 undecidable manual S 242 10.7781 127 -0.19 74
GU.RNCA.HHZ. 2022-10-23T07:05:21.08 0.1 undecidable manual P 281 11.0778 126 0.11 100
IT.GNV.HGZ. 2022-10-23T07:05:21.36 0.1 undecidable manual P 260 12.6762 123 0.14 99
GU.GENL.EHZ. 2022-10-23T07:05:20.99 0.3 undecidable manual P 242 10.7781 127 0.08 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.RNCA.HHN. ML:1.9 0.0010505 0.16 AML other m 2022-10-23T07:05:22.91
GU.RNCA.HHE. ML:1.9 0.001075 0.1 AML other m 2022-10-23T07:05:23.08
IV.MSSA.HHN. ML:1.7 0.00017865865 0.0992 AML other m 2022-10-23T07:05:31.81
IV.MSSA.HHE. ML:1.9 0.000315 0.1 AML other m 2022-10-23T07:05:32.12
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