Earthquake with magnitude of ML 1.8 on date 12-06-2023 and time 08:28:23 (Italy) in region 4 km N Rezzoaglio (GE)

A magnitude ML 1.8 earthquake occured in region: 4 km N Rezzoaglio (GE), on

  • 12-06-2023 06:28:23 (UTC)
  • 12-06-2023 08:28:23 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.5620, 9.4010 at 8 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Rezzoaglio GE 4 995 995
Santo Stefano d'Aveto GE 4 1126 2121
Fontanigorda GE 8 277 2398
Ottone PC 9 516 2914
Rovegno GE 10 554 3468
Gorreto GE 10 97 3565
Ferriere PC 12 1294 4859
Montebruno GE 13 240 5099
Fascia GE 13 81 5180
Cerignale PC 14 127 5307
Rondanina GE 14 62 5369
Zerba PC 15 77 5446
Borzonasca GE 16 2049 7495
Favale di Malvaro GE 17 466 7961
Corte Brugnatella PC 17 586 8547
Propata GE 17 142 8689
Lorsica GE 18 468 9157
Carrega Ligure AL 19 84 9241
Bedonia PR 19 3482 12723
Tornolo PR 20 1010 13733
Mezzanego GE 20 1537 15270
Orero GE 20 565 15835
Torriglia GE 20 2311 18146

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km E of Genova (586655 inhabitants)
59 Km SW of Piacenza (102191 inhabitants)
61 Km NW of La Spezia (93959 inhabitants)
72 Km S of Pavia (72576 inhabitants)
73 Km SE of Alessandria (93943 inhabitants)
77 Km NW of Carrara (63133 inhabitants)
78 Km W of Parma (192836 inhabitants)
78 Km E of Savona (61345 inhabitants)
80 Km SW of Cremona (71901 inhabitants)
83 Km NW of Massa (69479 inhabitants)
94 Km SE of Vigevano (63310 inhabitants)
99 Km W of Reggio nell'Emilia (171345 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 1.8 2023-06-12
06:28:23
44.5622 9.401 9 2023-06-12
06:50:29
Sala Sismica INGV-Roma 118328321
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-06-12 06:28:23 ± 0.22
Latitude 44.5622 ± 0.0315
Longitude 9.4010 ± 0.0126
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 118328321

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3487
Semi-minor axis of confidence ellipse (meter) 693
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 6
Circular confidence region, given by single value of horizontal uncertainty (meter) 3490.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 158
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.48
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.09897
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 118328321
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-06-12 06:50:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GUMA.HHZ. 2023-06-12T06:29:21.39 3.0 undecidable manual Pn 6 0
IV.FDMO.HHZ. 2023-06-12T06:29:16.23 3.0 positive manual Pn 3.03 0
GU.POPM.HHZ. 2023-06-12T06:29:02.46 0.6 undecidable manual S 118 121.989 50 3.28 2
IV.TREG.HNZ. 2023-06-12T06:29:00.40 3.0 undecidable manual Pg 1.96 0
GU.CANO.HHE. 2023-06-12T06:28:53.62 0.3 undecidable manual S 247 100.3218 50 0.22 62
IV.QLNO.HHE. 2023-06-12T06:28:50.63 0.3 undecidable manual S 253 87.6456 50 0.62 57
GU.POPM.HHZ. 2023-06-12T06:28:46.48 0.6 negative manual P 118 121.989 50 2.34 11
GU.PCP.HHZ. 2023-06-12T06:28:44.59 0.1 undecidable manual S 268 67.6767 50 -0.1 91
IV.PLMA.HHZ. 2023-06-12T06:28:43.83 0.3 undecidable manual S 148 67.2771 50 -0.74 57
GU.CANO.HHE. 2023-06-12T06:28:41.59 0.3 undecidable manual P 247 100.3218 50 0.79 52
GU.GRAM.HHE. 2023-06-12T06:28:40.39 0.6 undecidable manual S 98 53.1024 50 -0.41 44
IV.QLNO.HHE. 2023-06-12T06:28:39.28 0.1 undecidable manual P 253 87.6456 50 0.43 81
GU.EQUI.HHZ. 2023-06-12T06:28:38.45 0.3 undecidable manual P 126 74.0703 50 1.69 34
IT.GNV.HGE. 2023-06-12T06:28:36.92 0.1 undecidable manual S 249 39.8268 50 -0.34 91
GU.RNCA.HHZ. 2023-06-12T06:28:35.84 0.3 undecidable manual S 254 37.0296 50 -0.66 62
IV.PLMA.HHZ. 2023-06-12T06:28:35.38 0.6 undecidable manual P 148 67.2771 50 -0.33 43
GU.PCP.HHZ. 2023-06-12T06:28:35.86 1.0 positive manual P 268 67.6767 50 0.09 23
GU.GRAM.HHE. 2023-06-12T06:28:33.26 0.1 undecidable manual P 98 53.1024 50 -0.27 90
IT.GNV.HGE. 2023-06-12T06:28:31.70 0.1 undecidable manual P 249 39.8268 50 0.21 93
GU.RNCA.HHZ. 2023-06-12T06:28:30.69 0.1 negative manual P 254 37.0296 50 -0.36 91
GU.GORR.HHE. 2023-06-12T06:28:28.02 0.1 undecidable manual S 300 9.879 131 -0.12 100
GU.GORR.HHE. 2023-06-12T06:28:26.07 0.1 undecidable manual P 300 9.879 131 -0.15 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.RNCA.HHE. ML:2.4 0.0009655 0.1 AML other m 2023-06-12T06:28:36.47
GU.RNCA.HHN. ML:2.0 0.0003765 0.58 AML other m 2023-06-12T06:28:36.52
IV.PLMA.HHN. ML:1.8 0.0001008 0.44 AML other m 2023-06-12T06:28:46.65
IV.PLMA.HHE. ML:1.8 0.00010445 0.2 AML other m 2023-06-12T06:28:47.23
GU.PCP.HHE. ML:1.6 0.00006315 0.2 AML other m 2023-06-12T06:28:48.36
GU.PCP.HHN. ML:1.6 0.00006615 0.28 AML other m 2023-06-12T06:28:48.39
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