Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 08-06-2023 and time 10:43:46 (Italy) in region 2 km NW Orero (GE)

A magnitude ML 1.1 earthquake occured in region: 2 km NW Orero (GE), on

  • 08-06-2023 08:43:46 (UTC)
  • 08-06-2023 10:43:46 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.4160, 9.2580 at 9 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Orero GE 2 565 565
Cicagna GE 2 2502 3067
Lorsica GE 2 468 3535
Coreglia Ligure GE 3 285 3820
Moconesi GE 4 2614 6434
Favale di Malvaro GE 4 466 6900
Tribogna GE 5 614 7514
San Colombano Certenoli GE 7 2683 10197
Neirone GE 7 916 11113
Uscio GE 7 2284 13397
Rapallo GE 8 29796 43193
Avegno GE 9 2525 45718
Zoagli GE 9 2472 48190
Leivi GE 9 2442 50632
Santa Margherita Ligure GE 10 9338 59970
Carasco GE 10 3733 63703
Lumarzo GE 10 1535 65238
Mezzanego GE 10 1537 66775
Borzonasca GE 10 2049 68824
Recco GE 11 9752 78576
Camogli GE 11 5378 83954
Chiavari GE 12 27398 111352
Cogorno GE 12 5676 117028
Montebruno GE 12 240 117268
Sori GE 13 4205 121473
Portofino GE 13 420 121893
Ne GE 14 2259 124152
Bargagli GE 14 2708 126860
Lavagna GE 14 12791 139651
Torriglia GE 14 2311 141962
Pieve Ligure GE 14 2544 144506
Davagna GE 15 1884 146390
Fontanigorda GE 15 277 146667
Bogliasco GE 15 4488 151155
Rezzoaglio GE 16 995 152150
Rondanina GE 17 62 152212
Fascia GE 17 81 152293
Propata GE 18 142 152435
Rovegno GE 18 554 152989
Sestri Levante GE 20 18578 171567

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km E of Genova (586655 inhabitants)
57 Km NW of La Spezia (93959 inhabitants)
63 Km E of Savona (61345 inhabitants)
75 Km SE of Alessandria (93943 inhabitants)
77 Km W of Carrara (63133 inhabitants)
79 Km SW of Piacenza (102191 inhabitants)
82 Km NW of Massa (69479 inhabitants)
86 Km S of Pavia (72576 inhabitants)
95 Km W of Parma (192836 inhabitants)
99 Km SE of Asti (76202 inhabitants)
100 Km NW of Viareggio (62467 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
Reviewed
Rev100 		ML 1.1 2023-06-08
08:43:46		 44.4162 9.2578 9 2023-06-08
08:54:22		 Sala Sismica INGV-Roma 118205531
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-06-08 08:43:46 ± 0.27
Latitude 44.4162 ± 0.0162
Longitude 9.2578 ± 0.0138
Depth (km) 9 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 118205531

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1676
Semi-minor axis of confidence ellipse (meter) 790
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 347
Circular confidence region, given by single value of horizontal uncertainty (meter) 1680.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 154
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.56208
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 4
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 118205531
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-06-08 08:54:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.IMOL.HNZ. 2023-06-08T08:44:17.29 3.0 negative manual Pn -0.12 0
ZO.PDN2.HNZ. 2023-06-08T08:44:15.33 3.0 undecidable manual Pn 0.19 0
GU.PCP.HHE. 2023-06-08T08:44:04.95 0.6 undecidable manual S 284 58.0974 50 -0.34 45
GU.PCP.HHE. 2023-06-08T08:43:58.30 0.6 undecidable manual P 284 58.0974 50 0.81 38
IV.PLMA.HHZ. 2023-06-08T08:43:57.94 0.3 undecidable manual P 130 62.3931 50 -0.22 68
GU.RNCA.HHZ. 2023-06-08T08:43:55.88 0.1 undecidable manual S 284 25.0527 109 -0.17 98
GU.GORR.HHZ. 2023-06-08T08:43:54.74 0.3 undecidable manual S 7 21.3675 113 -0.12 75
GU.RNCA.HHZ. 2023-06-08T08:43:52.32 0.1 undecidable manual P 284 25.0527 109 0.16 98
GU.GORR.HHZ. 2023-06-08T08:43:51.57 0.1 undecidable manual P 7 21.3675 113 0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.GORR.HHE. ML:0.9 0.000060899999999999996 0.16 AML other m 2023-06-08T08:43:54.91
GU.GORR.HHN. ML:0.8 0.000046649999999999996 1.72 AML other m 2023-06-08T08:43:54.99
GU.RNCA.HHN. ML:1.2 0.0001035 0.48 AML other m 2023-06-08T08:43:56.30
GU.RNCA.HHE. ML:1.5 0.0001815 0.12 AML other m 2023-06-08T08:43:56.19
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