INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.4 on date 08-08-2018 and time 08:45:54 (Italy) in region 3 km SW Borgo a Mozzano (LU)

A magnitude ML 1.4 earthquake occured in region: 3 km SW Borgo a Mozzano (LU), on

  • 08-08-2018 06:45:54 (UTC)
  • 08-08-2018 08:45:54 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.96, 10.52 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
Borgo a Mozzano LU 3 6994 6994
Bagni di Lucca LU 8 6161 13155
Pescaglia LU 8 3526 16681
Villa Basilica LU 11 1633 18314
Coreglia Antelminelli LU 12 5215 23529
Barga LU 13 10034 33563
Gallicano LU 13 3807 37370
Lucca LU 13 89046 126416
Capannori LU 13 46252 172668
Molazzana LU 15 1043 173711
Fabbriche di Vergemoli LU 15 768 174479
Pescia PT 15 19644 194123
Porcari LU 16 8845 202968
Camaiore LU 17 32513 235481
Massarosa LU 17 22471 257952
Montecarlo LU 18 4428 262380
Fosciandora LU 18 602 262982
Stazzema LU 18 3193 266175
Uzzano PT 18 5770 271945
Castelnuovo di Garfagnana LU 18 5950 277895
Massa e Cozzile PT 19 7983 285878
Buggiano PT 19 8825 294703

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km N of Lucca (89046 inhabitants)
24 Km E of Viareggio (62467 inhabitants)
29 Km NE of Pisa (89158 inhabitants)
31 Km E of Massa (69479 inhabitants)
32 Km W of Pistoia (90315 inhabitants)
36 Km E of Carrara (63133 inhabitants)
48 Km W of Prato (191150 inhabitants)
48 Km NE of Livorno (159219 inhabitants)
57 Km E of La Spezia (93959 inhabitants)
58 Km W of Scandicci (50609 inhabitants)
63 Km W of Firenze (382808 inhabitants)
82 Km S of Reggio nell'Emilia (171345 inhabitants)
83 Km SW of Modena (184973 inhabitants)
89 Km SW of Bologna (386663 inhabitants)
95 Km S of Parma (192836 inhabitants)
96 Km SW of Carpi (70699 inhabitants)
97 Km NW of Siena (53903 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.4 2018-08-08
06:45:54
43.96 10.52 9 2018-08-08
07:08:32
Sala Sismica INGV-Roma 59506011
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-08-08 06:45:54 ± 0.11
Latitude 43.96 ± 0.00
Longitude 10.52 ± 0.01
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 59506011

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 714
Semi-minor axis of confidence ellipse (meter) 419
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 94
Circular confidence region, given by single value of horizontal uncertainty (meter) 710
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 108
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.37412
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 59506011
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-08-08 07:08:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.VAGA.HHZ. 2018-08-08T06:47:44.56 3.0 undecidable manual Sg 11.77 0
MN.PDG.HHZ. 2018-08-08T06:47:29.75 3.0 positive manual Pn 2.13 0
CR.STON.BHZ. 2018-08-08T06:47:19.10 3.0 undecidable manual Pn 8.42 0
GU.TRAV.HHZ. 2018-08-08T06:47:10.13 3.0 undecidable manual Sg 12.6 0
IV.VAGA.HHZ. 2018-08-08T06:46:57.21 3.0 undecidable manual Pg 8.92 0
IV.IMI.HHZ. 2018-08-08T06:46:50.35 3.0 undecidable manual Sg 8.27 0
IV.LPEL.HHZ. 2018-08-08T06:46:43.87 3.0 undecidable manual Pn 1.5 0
IV.CAFI.HHZ. 2018-08-08T06:46:34.00 3.0 undecidable manual Sg 2.32 0
IV.TOLF.HHZ. 2018-08-08T06:46:25.42 3.0 undecidable manual Pn -1.19 0
IV.MILN.HNZ. 2018-08-08T06:46:19.34 3.0 positive manual Pn 0.54 0
IV.CAFI.HHZ. 2018-08-08T06:46:18.54 3.0 positive manual Pg 4.58 0
IV.OSSC.HHZ. 2018-08-08T06:46:15.94 3.0 undecidable manual Sn -2.36 0
IV.CASP.HHZ. 2018-08-08T06:46:14.57 3.0 negative manual Pg 1.96 0
IV.NDIM.HNZ. 2018-08-08T06:46:08.65 3.0 positive manual P -0.47 0
GU.EQUI.HHZ. 2018-08-08T06:46:06.85 0.6 undecidable manual S 308 0.3301 50 -0.34 45
MN.VLC.HNZ. 2018-08-08T06:46:03.51 0.6 undecidable manual S 335 0.2176 109 0.26 46
IV.CRMI.HNZ. 2018-08-08T06:46:03.05 1.0 undecidable manual P 116 0.3741 50 0.53 21
GU.EQUI.HHZ. 2018-08-08T06:46:01.83 0.3 undecidable manual P 308 0.3301 50 0.05 71
GU.SARM.EHZ. 2018-08-08T06:46:00.21 0.6 undecidable manual P 340 0.2356 108 0.32 46
IV.BDI.HHZ. 2018-08-08T06:45:59.65 0.6 undecidable manual S 30 0.1151 123 -0.06 49
MN.VLC.HNZ. 2018-08-08T06:45:59.55 0.1 undecidable manual P 335 0.2176 109 0.05 97
GU.CARD.HHZ. 2018-08-08T06:45:58.28 0.6 undecidable manual S 339 0.0674 138 -0.03 50
IV.BDI.HHZ. 2018-08-08T06:45:57.29 0.1 undecidable manual P 30 0.1151 123 -0.17 97
GU.MAIM.HHZ. 2018-08-08T06:45:57.98 0.6 undecidable manual S 200 0.0513 146 0.06 50
GU.MAIM.HHZ. 2018-08-08T06:45:56.36 0.1 positive manual P 200 0.0513 146 -0.06 100
GU.CARD.HHZ. 2018-08-08T06:45:56.56 0.1 undecidable manual P 339 0.0674 138 -0.08 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.CARD.HHE. ML:1.2 0.000242 0.5 AML other m 2018-08-08T06:45:58.37
GU.MAIM.HHE. ML:1.4 0.000485 0.84 AML other m 2018-08-08T06:45:59.68
IV.BDI.HHN. ML:1.3 0.000226 0.46 AML other m 2018-08-08T06:46:00.11
GU.CARD.HHN. ML:1.2 0.0002295 1.52 AML other m 2018-08-08T06:46:00.95
GU.MAIM.HHN. ML:1.3 0.000392 0.36 AML other m 2018-08-08T06:46:00.50
IV.BDI.HNN. ML:1.2 0.000191 0.28 AML other m 2018-08-08T06:46:01.28
IV.BDI.HHE. ML:1.3 0.000219 0.26 AML other m 2018-08-08T06:46:01.44
IV.BDI.HNE. ML:1.4 0.0002735 0.66 AML other m 2018-08-08T06:46:01.45
IV.CAFI.HHE. ML:1.7 2.81E-5 0.06 AML other m 2018-08-08T06:46:47.49
IV.CAFI.HHN. ML:1.6 2.305E-5 0.22 AML other m 2018-08-08T06:46:51.32
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download