Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 06-10-2023 and time 01:44:49 (Italy) in region 1 km W Pescia (PT)

A magnitude ML 1.0 earthquake occured in region: 1 km W Pescia (PT), on

  • 05-10-2023 23:44:49 (UTC)
  • 06-10-2023 01:44:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.9050, 10.6720 at 51 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
Pescia PT 1 19644 19644
Villa Basilica LU 3 1633 21277
Uzzano PT 4 5770 27047
Buggiano PT 5 8825 35872
Montecarlo LU 6 4428 40300
Massa e Cozzile PT 6 7983 48283
Chiesina Uzzanese PT 8 4552 52835
Porcari LU 8 8845 61680
Montecatini-Terme PT 9 20409 82089
Marliana PT 9 3210 85299
Ponte Buggianese PT 9 8804 94103
Capannori LU 10 46252 140355
Altopascio LU 10 15481 155836
Pieve a Nievole PT 10 9266 165102
Monsummano Terme PT 12 21338 186440
Serravalle Pistoiese PT 13 11659 198099
Borgo a Mozzano LU 13 6994 205093
Bagni di Lucca LU 14 6161 211254
Lucca LU 15 89046 300300
Piteglio PT 16 1683 301983
Larciano PT 19 6394 308377
San Marcello Pistoiese PT 20 6416 314793

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km E of Lucca (89046 inhabitants)
20 Km W of Pistoia (90315 inhabitants)
30 Km NE of Pisa (89158 inhabitants)
34 Km E of Viareggio (62467 inhabitants)
34 Km W of Prato (191150 inhabitants)
44 Km W of Scandicci (50609 inhabitants)
45 Km E of Massa (69479 inhabitants)
49 Km NE of Livorno (159219 inhabitants)
49 Km W of Firenze (382808 inhabitants)
50 Km E of Carrara (63133 inhabitants)
71 Km E of La Spezia (93959 inhabitants)
84 Km NW of Siena (53903 inhabitants)
85 Km SW of Bologna (386663 inhabitants)
85 Km S of Modena (184973 inhabitants)
88 Km S of Reggio nell'Emilia (171345 inhabitants)
97 Km SW of Imola (69797 inhabitants)
99 Km S of Carpi (70699 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 1.0 2023-10-05
23:44:49		 43.9047 10.6717 51 2023-10-05
23:52:23		 Sala Sismica INGV-Roma 121802471
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-10-05 23:44:49 ± 0.34
Latitude 43.9047 ± 0.0198
Longitude 10.6717 ± 0.0349
Depth (km) 51 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 121802471

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2949
Semi-minor axis of confidence ellipse (meter) 705
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 246
Circular confidence region, given by single value of horizontal uncertainty (meter) 2950.0
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 13
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.49643
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 121802471
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-10-05 23:52:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.BRSN.HNZ. 2023-10-05T23:45:10.01 3.0 undecidable manual P 0.03 0
IV.CRMI.HNZ. 2023-10-05T23:45:06.20 0.6 undecidable manual S 116 27.4503 145 0.58 42
GU.POPM.HHZ. 2023-10-05T23:45:04.52 0.1 undecidable manual S 24 16.9719 157 -0.02 100
IV.PSL.EHZ. 2023-10-05T23:45:04.91 0.3 undecidable manual S 60 23.5542 149 -0.26 71
IV.BDI.HHZ. 2023-10-05T23:45:04.90 0.3 undecidable manual S 341 18.5703 155 0.22 72
IV.ZCCA.HHE. 2023-10-05T23:45:01.96 0.3 undecidable manual P 26 55.1004 121 0.4 64
GU.GSCL.HHE. 2023-10-05T23:45:01.55 0.6 undecidable manual P 352 49.9167 124 0.54 42
IV.FNVD.HHE. 2023-10-05T23:45:00.62 0.6 undecidable manual P 51 46.3203 127 -0.03 48
IV.CRMI.HNZ. 2023-10-05T23:44:59.10 0.1 undecidable manual P 116 27.4503 145 0.09 96
GU.POPM.HHZ. 2023-10-05T23:44:58.15 0.1 positive manual P 24 16.9719 157 -0.23 96
IV.PSL.EHZ. 2023-10-05T23:44:58.35 0.3 positive manual P 60 23.5542 149 -0.39 69
IV.BDI.HHZ. 2023-10-05T23:44:58.43 0.3 positive manual P 341 18.5703 155 -0.03 75
GU.MAIM.HHZ. 2023-10-05T23:44:57.82 0.6 undecidable manual P 274 14.3745 161 -0.45 46
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BDI.HHE. ML:1.2 0.00004075 0.12 AML other m 2023-10-05T23:45:05.15
GU.POPM.HHN. ML:0.9 0.000018849999999999997 0.92 AML other m 2023-10-05T23:45:05.27
GU.POPM.HHE. ML:0.6 0.000012465 1.36 AML other m 2023-10-05T23:45:05.16
IV.BDI.HHN. ML:1.0 0.00002375 1.02 AML other m 2023-10-05T23:45:05.47
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