Earthquake with magnitude of ML 1.3 on date 04-05-2023 and time 13:47:52 (UTC) in region 2 km SW Sillano Giuncugnano (LU)

A magnitude ML 1.3 earthquake occured in region: 2 km SW Sillano Giuncugnano (LU), on

  • 04-05-2023 13:47:52 (UTC)
  • 04-05-2023 15:47:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.2130, 10.2800 at 10 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
Sillano Giuncugnano LU 2 1085 1085
Piazza al Serchio LU 4 2367 3452
San Romano in Garfagnana LU 7 1410 4862
Minucciano LU 7 2102 6964
Camporgiano LU 7 2176 9140
Casola in Lunigiana MS 8 988 10128
Careggine LU 11 564 10692
Vagli Sotto LU 11 939 11631
Villa Collemandina LU 11 1334 12965
Castiglione di Garfagnana LU 13 1818 14783
Fivizzano MS 13 7925 22708
Pieve Fosciana LU 14 2414 25122
Comano MS 15 714 25836
Castelnuovo di Garfagnana LU 16 5950 31786
Fosciandora LU 18 602 32388
Ventasso RE 18 4295 36683
Molazzana LU 19 1043 37726
Fabbriche di Vergemoli LU 20 768 38494

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km NE of Carrara (63133 inhabitants)
22 Km NE of Massa (69479 inhabitants)
38 Km E of La Spezia (93959 inhabitants)
38 Km N of Viareggio (62467 inhabitants)
45 Km NW of Lucca (89046 inhabitants)
56 Km N of Pisa (89158 inhabitants)
60 Km NW of Pistoia (90315 inhabitants)
61 Km SW of Reggio nell'Emilia (171345 inhabitants)
66 Km S of Parma (192836 inhabitants)
71 Km SW of Modena (184973 inhabitants)
73 Km N of Livorno (159219 inhabitants)
75 Km W of Prato (191150 inhabitants)
80 Km SW of Carpi (70699 inhabitants)
88 Km NW of Scandicci (50609 inhabitants)
90 Km W of Bologna (386663 inhabitants)
92 Km NW of Firenze (382808 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 1.3 2023-05-04
13:47:52
44.213 10.2803 11 2023-05-04
13:58:02
Sala Sismica INGV-Roma 117021071
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-05-04 13:47:52 ± 0.04
Latitude 44.2130 ± 0.0027
Longitude 10.2803 ± 0.0038
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 117021071

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 340
Semi-minor axis of confidence ellipse (meter) 228
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 213
Circular confidence region, given by single value of horizontal uncertainty (meter) 340.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 89
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.38041
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 117021071
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-05-04 13:58:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.POPM.HHZ. 2023-05-04T13:48:06.36 0.6 undecidable manual S 116 42.2244 50 0.04 47
GU.MAIM.HHZ. 2023-05-04T13:48:05.16 0.6 undecidable manual S 153 37.2294 50 0.17 47
GU.GRAM.HHZ. 2023-05-04T13:48:04.37 0.6 undecidable manual S 331 35.2425 50 -0.06 48
IV.PLMA.HHZ. 2023-05-04T13:48:04.95 0.6 undecidable manual S 242 38.5281 50 -0.36 45
IV.BDI.HHZ. 2023-05-04T13:48:02.82 0.6 undecidable manual S 123 30.1476 50 -0.26 46
GU.GSCL.HHZ. 2023-05-04T13:48:02.38 0.6 undecidable manual S 58 28.8489 50 -0.35 45
GU.CARD.HHZ. 2023-05-04T13:48:01.98 0.6 undecidable manual S 142 26.2515 50 -0.06 49
IV.ERBM.EHZ. 2023-05-04T13:48:01.61 0.6 undecidable manual S 25 25.1526 50 -0.16 48
IV.PLMA.HHZ. 2023-05-04T13:48:00.19 1.0 negative manual P 242 38.5281 50 0.32 22
GU.POPM.HHZ. 2023-05-04T13:48:00.53 0.1 negative manual P 116 42.2244 50 0.08 94
GU.GRAM.HHZ. 2023-05-04T13:47:59.45 0.1 positive manual P 331 35.2425 50 0.09 95
GU.MAIM.HHZ. 2023-05-04T13:47:59.76 0.6 undecidable manual P 153 37.2294 50 0.08 47
GU.PRMA.HHZ. 2023-05-04T13:47:59.02 3.0 undecidable manual P 0
GU.CARD.HHZ. 2023-05-04T13:47:58.02 0.3 undecidable manual P 142 26.2515 50 0.04 73
IV.BDI.HHZ. 2023-05-04T13:47:58.62 0.1 undecidable manual P 123 30.1476 50 0.04 97
GU.GSCL.HHZ. 2023-05-04T13:47:58.58 0.6 undecidable manual P 58 28.8489 50 0.2 47
IV.ERBM.EHZ. 2023-05-04T13:47:57.88 0.1 undecidable manual P 25 25.1526 50 0.06 97
GU.EQUI.HHZ. 2023-05-04T13:47:57.49 0.6 undecidable manual S 243 11.3775 132 -0.31 47
MN.VLC.HHZ. 2023-05-04T13:47:57.44 0.6 undecidable manual S 125 10.2786 135 -0.09 50
GU.FIVI.HNZ. 2023-05-04T13:47:57.98 0.6 undecidable manual S 284 12.5763 130 -0.12 49
GU.SARM.EHZ. 2023-05-04T13:47:57.09 0.6 undecidable manual S 108 10.0788 136 -0.39 47
GU.SARM.EHZ. 2023-05-04T13:47:55.43 0.1 undecidable manual P 108 10.0788 136 0.08 99
GU.EQUI.HHZ. 2023-05-04T13:47:55.57 0.1 undecidable manual P 243 11.3775 132 0.04 100
MN.VLC.HHZ. 2023-05-04T13:47:55.54 0.1 positive manual P 125 10.2786 135 0.16 98
GU.FIVI.HNZ. 2023-05-04T13:47:55.86 0.1 undecidable manual P 284 12.5763 130 0.16 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.VLC.HHN. ML:1.3 0.000219 0.76 AML other m 2023-05-04T13:47:57.51
GU.EQUI.HHE. ML:1.2 0.00015899999999999996 0.44 AML other m 2023-05-04T13:47:57.61
MN.VLC.HHE. ML:1.1 0.00016350000000000002 0.32 AML other m 2023-05-04T13:47:57.68
GU.EQUI.HHN. ML:1.1 0.000129 1.84 AML other m 2023-05-04T13:47:58.07
GU.CARD.HHE. ML:1.2 0.00007905 0.58 AML other m 2023-05-04T13:48:02.42
GU.CARD.HHN. ML:1.3 0.0001045 0.16 AML other m 2023-05-04T13:48:02.48
GU.GSCL.HHN. ML:1.4 0.000128 0.64 AML other m 2023-05-04T13:48:02.56
GU.GSCL.HHE. ML:1.4 0.0001305 0.46 AML other m 2023-05-04T13:48:02.77
IV.BDI.HHE. ML:1.2 0.00008065 0.24 AML other m 2023-05-04T13:48:03.64
IV.BDI.HHN. ML:1.1 0.00006544999999999999 0.7 AML other m 2023-05-04T13:48:04.73
GU.GRAM.HHN. ML:1.6 0.000168 0.14 AML other m 2023-05-04T13:48:05.28
GU.GRAM.HHE. ML:1.7 0.00020800000000000001 0.18 AML other m 2023-05-04T13:48:05.29
GU.POPM.HHN. ML:1.5 0.00009625000000000001 0.72 AML other m 2023-05-04T13:48:06.59
GU.POPM.HHE. ML:1.4 0.0000896 0.74 AML other m 2023-05-04T13:48:06.80
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