Earthquake with magnitude of ML 1.1 on date 01-12-2021 and time 08:06:03 (UTC) in region 2 km S Borgo a Mozzano (LU)

A magnitude ML 1.1 earthquake occured in region: 2 km S Borgo a Mozzano (LU), on

  • 01-12-2021 08:06:03 (UTC)
  • 01-12-2021 09:06:03 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.962, 10.548 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
Borgo a Mozzano LU 2 6994 6994
Bagni di Lucca LU 7 6161 13155
Villa Basilica LU 9 1633 14788
Pescaglia LU 11 3526 18314
Coreglia Antelminelli LU 12 5215 23529
Capannori LU 13 46252 69781
Pescia PT 13 19644 89425
Lucca LU 14 89046 178471
Barga LU 14 10034 188505
Gallicano LU 14 3807 192312
Porcari LU 15 8845 201157
Montecarlo LU 16 4428 205585
Uzzano PT 16 5770 211355
Molazzana LU 16 1043 212398
Fabbriche di Vergemoli LU 17 768 213166
Massa e Cozzile PT 17 7983 221149
Buggiano PT 17 8825 229974
Marliana PT 18 3210 233184
Fosciandora LU 19 602 233786
Piteglio PT 19 1683 235469
Altopascio LU 19 15481 250950
Chiesina Uzzanese PT 19 4552 255502
Massarosa LU 19 22471 277973
Camaiore LU 20 32513 310486
Castelnuovo di Garfagnana LU 20 5950 316436
Montecatini-Terme PT 20 20409 336845

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km N of Lucca (89046 inhabitants)
26 Km E of Viareggio (62467 inhabitants)
30 Km NE of Pisa (89158 inhabitants)
30 Km W of Pistoia (90315 inhabitants)
34 Km E of Massa (69479 inhabitants)
38 Km E of Carrara (63133 inhabitants)
45 Km W of Prato (191150 inhabitants)
49 Km NE of Livorno (159219 inhabitants)
56 Km W of Scandicci (50609 inhabitants)
60 Km E of La Spezia (93959 inhabitants)
61 Km W of Firenze (382808 inhabitants)
82 Km SW of Modena (184973 inhabitants)
82 Km S of Reggio nell'Emilia (171345 inhabitants)
87 Km SW of Bologna (386663 inhabitants)
95 Km S of Parma (192836 inhabitants)
95 Km S of Carpi (70699 inhabitants)
95 Km NW of Siena (53903 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.1 2021-12-01
08:06:03
43.9617 10.5483 9 2021-12-01
08:15:26
Sala Sismica INGV-Roma 98004871
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-01 08:06:03 ± 0.6
Latitude 43.9617 ± 0.0117
Longitude 10.5483 ± 0.0212
Depth (km) 9 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 98004871

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1482
Semi-minor axis of confidence ellipse (meter) 1198
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 136
Circular confidence region, given by single value of horizontal uncertainty (meter) 1480
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 159
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.17177
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 4
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 98004871
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-01 08:15:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.OSSC.HHZ. 2021-12-01T08:06:28.50 3.0 undecidable manual S 0.2 0
GU.POPM.HHZ. 2021-12-01T08:06:11.29 0.6 undecidable manual S 61 0.1718 114 0.25 49
IV.BDI.HHZ. 2021-12-01T08:06:08.32 0.3 undecidable manual S 19 0.107 126 -0.54 69
GU.POPM.HHZ. 2021-12-01T08:06:08.16 0.3 positive manual P 61 0.1718 114 0.19 74
GU.CARD.HHZ. 2021-12-01T08:06:08.66 0.6 undecidable manual S 324 0.08 134 0.59 46
GU.MAIM.HHZ. 2021-12-01T08:06:07.78 0.6 undecidable manual S 220 0.063 141 0.15 51
GU.CARD.HHZ. 2021-12-01T08:06:06.16 0.6 undecidable manual P 324 0.08 134 -0.1 51
IV.BDI.HHZ. 2021-12-01T08:06:06.86 0.6 positive manual P 19 0.107 126 0.14 51
GU.MAIM.HHZ. 2021-12-01T08:06:05.77 0.1 undecidable manual P 220 0.063 141 -0.24 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.CARD.HHN. ML:1.2 0.000229 0.44 AML other m 2021-12-01T08:06:08.70
GU.MAIM.HHN. ML:1.2 0.0002445 0.5 AML other m 2021-12-01T08:06:09.73
GU.MAIM.HHE. ML:0.9 0.000147 0.38 AML other m 2021-12-01T08:06:10.27
GU.CARD.HHE. ML:1.2 0.0002415 0.44 AML other m 2021-12-01T08:06:10.35
IV.BDI.HHE. ML:1.1 0.000164 0.38 AML other m 2021-12-01T08:06:10.83
GU.POPM.HHN. ML:1.1 9.25E-5 0.48 AML other m 2021-12-01T08:06:11.80
IV.BDI.HHN. ML:1.2 0.000195 1.02 AML other m 2021-12-01T08:06:11.79
GU.POPM.HHE. ML:1 8.22E-5 1.24 AML other m 2021-12-01T08:06:12.75
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