Earthquake with magnitude of ML 0.1 on date 16-08-2023 and time 19:19:41 (UTC) in region 2 km NW Agliana (PT)

A magnitude ML 0.1 earthquake occured in region: 2 km NW Agliana (PT), on

  • 16-08-2023 19:19:41 (UTC)
  • 16-08-2023 21:19:41 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.9140, 10.9860 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
Agliana PT 2 17525 17525
Montale PT 4 10737 28262
Montemurlo PO 4 18456 46718
Pistoia PT 6 90315 137033
Quarrata PT 7 26190 163223
Prato PO 10 191150 354373
Carmignano PO 11 14450 368823
Poggio a Caiano PO 12 10007 378830
Serravalle Pistoiese PT 12 11659 390489
Vaiano PO 13 9895 400384
Lamporecchio PT 13 7508 407892
Larciano PT 13 6394 414286
Monsummano Terme PT 14 21338 435624
Vinci FI 15 14604 450228
Calenzano FI 16 17489 467717
Pieve a Nievole PT 16 9266 476983
Campi Bisenzio FI 16 46166 523149
Cantagallo PO 16 3105 526254
Signa FI 17 19179 545433
Montecatini-Terme PT 17 20409 565842
Marliana PT 17 3210 569052
Lastra a Signa FI 19 20156 589208
Capraia e Limite FI 19 7670 596878
Cerreto Guidi FI 19 10870 607748
Sesto Fiorentino FI 19 48958 656706
Massa e Cozzile PT 19 7983 664689

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km E of Pistoia (90315 inhabitants)
10 Km W of Prato (191150 inhabitants)
23 Km NW of Scandicci (50609 inhabitants)
27 Km NW of Firenze (382808 inhabitants)
40 Km E of Lucca (89046 inhabitants)
52 Km E of Pisa (89158 inhabitants)
59 Km E of Viareggio (62467 inhabitants)
68 Km NE of Livorno (159219 inhabitants)
69 Km E of Massa (69479 inhabitants)
71 Km SW of Bologna (386663 inhabitants)
72 Km NW of Siena (53903 inhabitants)
73 Km E of Carrara (63133 inhabitants)
76 Km SW of Imola (69797 inhabitants)
82 Km S of Modena (184973 inhabitants)
83 Km SW of Faenza (58541 inhabitants)
88 Km NW of Arezzo (99543 inhabitants)
91 Km W of Forlì (117913 inhabitants)
92 Km SE of Reggio nell'Emilia (171345 inhabitants)
95 Km E of La Spezia (93959 inhabitants)
97 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 0.1 2023-08-16
19:19:41
43.9142 10.986 9 2023-08-16
19:27:54
Sala Sismica INGV-Roma 120200821
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-08-16 19:19:41 ± 0.12
Latitude 43.9142 ± 0.0027
Longitude 10.9860 ± 0.0037
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 120200821

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 279
Semi-minor axis of confidence ellipse (meter) 70
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 220
Circular confidence region, given by single value of horizontal uncertainty (meter) 280.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 127
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.08633
Epicentral distance of station farthest from the epicenter (degree) 0.21044
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.1

Field Value
Value 0.1
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 120200821
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-08-16 19:27:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.POPM.HHZ. 2023-08-16T19:19:50.50 0.1 undecidable manual S 309 23.3544 112 -0.09 97
IV.MOCL.EHZ. 2023-08-16T19:19:48.83 0.3 undecidable manual S 57 18.5703 117 -0.23 71
IV.CRMI.HHZ. 2023-08-16T19:19:47.36 0.3 undecidable manual S 182 13.1757 125 -0.09 74
IV.PSL.EHZ. 2023-08-16T19:19:47.01 0.1 undecidable manual S 336 11.4774 129 0.02 100
GU.POPM.HHZ. 2023-08-16T19:19:46.88 0.1 undecidable manual P 309 23.3544 112 -0.02 98
IV.MOCL.EHZ. 2023-08-16T19:19:46.01 0.1 undecidable manual P 57 18.5703 117 -0.01 99
IV.MPPT.EHZ. 2023-08-16T19:19:46.56 0.3 undecidable manual S 60 9.5793 134 0.06 75
IV.CRMI.HHZ. 2023-08-16T19:19:45.13 0.1 undecidable manual P 182 13.1757 125 0.04 99
IV.MPPT.EHZ. 2023-08-16T19:19:44.69 0.1 undecidable manual P 60 9.5793 134 0.14 98
IV.PSL.EHZ. 2023-08-16T19:19:44.92 0.1 undecidable manual P 336 11.4774 129 0.1 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CRMI.HHN. ML:0.0 0.0000124 0.32 AML other m 2023-08-16T19:19:47.38
IV.CRMI.HHE. ML:0.1 0.00001325 0.2 AML other m 2023-08-16T19:19:47.56
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