Earthquake with magnitude of ML 0.9 on date 04-04-2023 and time 13:52:58 (Italy) in region Pieve Fosciana (LU)

A magnitude ML 0.9 earthquake occured in region: Pieve Fosciana (LU), on

  • 04-04-2023 11:52:58 (UTC)
  • 04-04-2023 13:52:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.1280, 10.4130 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Pieve Fosciana LU 1 2414 2414
Castelnuovo di Garfagnana LU 2 5950 8364
Castiglione di Garfagnana LU 3 1818 10182
Fosciandora LU 4 602 10784
Villa Collemandina LU 4 1334 12118
Molazzana LU 6 1043 13161
Careggine LU 7 564 13725
San Romano in Garfagnana LU 7 1410 15135
Camporgiano LU 7 2176 17311
Gallicano LU 8 3807 21118
Barga LU 8 10034 31152
Fabbriche di Vergemoli LU 9 768 31920
Vagli Sotto LU 11 939 32859
Piazza al Serchio LU 11 2367 35226
Coreglia Antelminelli LU 11 5215 40441
Sillano Giuncugnano LU 14 1085 41526
Minucciano LU 17 2102 43628
Stazzema LU 17 3193 46821
Pescaglia LU 18 3526 50347
Pievepelago MO 19 2222 52569
Bagni di Lucca LU 19 6161 58730
Borgo a Mozzano LU 20 6994 65724
Fiumalbo MO 20 1280 67004

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km E of Massa (69479 inhabitants)
26 Km E of Carrara (63133 inhabitants)
32 Km NE of Viareggio (62467 inhabitants)
32 Km N of Lucca (89046 inhabitants)
46 Km N of Pisa (89158 inhabitants)
46 Km W of Pistoia (90315 inhabitants)
47 Km E of La Spezia (93959 inhabitants)
61 Km W of Prato (191150 inhabitants)
64 Km N of Livorno (159219 inhabitants)
66 Km S of Reggio nell'Emilia (171345 inhabitants)
71 Km SW of Modena (184973 inhabitants)
74 Km NW of Scandicci (50609 inhabitants)
75 Km S of Parma (192836 inhabitants)
78 Km NW of Firenze (382808 inhabitants)
82 Km SW of Carpi (70699 inhabitants)
85 Km W of Bologna (386663 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 0.9 2023-04-04
11:52:58
44.1275 10.413 9 2023-04-04
12:00:15
Sala Sismica INGV-Roma 116061621
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-04 11:52:58 ± 0.16
Latitude 44.1275 ± 0.0045
Longitude 10.4130 ± 0.0063
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 116061621

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 550
Semi-minor axis of confidence ellipse (meter) 57
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 54
Circular confidence region, given by single value of horizontal uncertainty (meter) 550.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 117
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.03687
Epicentral distance of station farthest from the epicenter (degree) 0.25541
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 116061621
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-04 12:00:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.GSCL.HHZ. 2023-04-04T11:53:08.89 0.3 undecidable manual S 29 28.3494 108 0.23 71
GU.MAIM.HHZ. 2023-04-04T11:53:07.36 0.6 undecidable manual S 165 24.5532 110 -0.06 50
GU.EQUI.HHZ. 2023-04-04T11:53:06.07 0.3 undecidable manual S 282 21.1677 113 -0.23 72
IV.BDI.HHZ. 2023-04-04T11:53:04.45 0.3 undecidable manual S 116 16.2726 119 -0.32 72
GU.MAIM.HHZ. 2023-04-04T11:53:03.55 0.1 undecidable manual P 165 24.5532 110 -0.02 100
GU.CARD.HHZ. 2023-04-04T11:53:03.67 0.3 undecidable manual S 154 12.4764 126 -0.01 77
GU.GSCL.HHZ. 2023-04-04T11:53:03.99 0.1 undecidable manual P 29 28.3494 108 -0.31 94
IV.BDI.HHZ. 2023-04-04T11:53:02.14 0.3 undecidable manual P 116 16.2726 119 0.09 75
GU.EQUI.HHZ. 2023-04-04T11:53:02.98 0.1 undecidable manual P 282 21.1677 113 0.05 100
MN.VLC.HHZ. 2023-04-04T11:53:01.70 0.3 undecidable manual S 329 4.0959 156 -0.08 77
GU.CARD.HHZ. 2023-04-04T11:53:01.82 0.3 undecidable manual P 154 12.4764 126 0.4 71
MN.VLC.HHZ. 2023-04-04T11:53:00.56 0.1 undecidable manual P 329 4.0959 156 0.24 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.VLC.HNN. ML:0.0 0.0002575 1.04 AML other m 2023-04-04T11:53:02.79
IV.BDI.HHE. ML:1.1 0.00011515000000000001 0.88 AML other m 2023-04-04T11:53:04.19
IV.BDI.HHN. ML:1.1 0.00012409999999999998 0.34 AML other m 2023-04-04T11:53:04.67
GU.GSCL.HHE. ML:1.1 0.00007045 0.54 AML other m 2023-04-04T11:53:08.67
GU.GSCL.HHN. ML:1.3 0.00009455 1.78 AML other m 2023-04-04T11:53:08.97
GU.EQUI.HHE. ML:0.6 0.0000257687305 0.16 AML other m 2023-04-04T11:53:07.23
GU.EQUI.HHN. ML:0.8 0.000038435170000000006 0.224 AML other m 2023-04-04T11:53:06.30
GU.MAIM.HHE. ML:0.8 0.00003564372000000001 0.3968 AML other m 2023-04-04T11:53:08.33
GU.MAIM.HHN. ML:0.8 0.00003380092 0.2368 AML other m 2023-04-04T11:53:07.67
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