Earthquake with magnitude of ML 1.0 on date 14-11-2021 and time 20:09:05 (Italy) in region Costa Toscana settentrionale (Massa Carrara, Lucca, Pisa)

A magnitude ML 1.0 earthquake occured in region: Costa Toscana settentrionale (Massa Carrara, Lucca, Pisa), on

  • 14-11-2021 19:09:05 (UTC)
  • 14-11-2021 20:09:05 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.718, 10.274 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
Pisa PI 10 89158 89158
Vecchiano PI 12 12189 101347
San Giuliano Terme PI 15 31399 132746
Viareggio LU 17 62467 195213
Massarosa LU 18 22471 217684
Livorno LI 19 159219 376903
Calci PI 20 6426 383329

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km W of Pisa (89158 inhabitants)
17 Km S of Viareggio (62467 inhabitants)
19 Km N of Livorno (159219 inhabitants)
23 Km SW of Lucca (89046 inhabitants)
37 Km S of Massa (69479 inhabitants)
42 Km SE of Carrara (63133 inhabitants)
56 Km SE of La Spezia (93959 inhabitants)
57 Km W of Pistoia (90315 inhabitants)
69 Km W of Prato (191150 inhabitants)
73 Km W of Scandicci (50609 inhabitants)
79 Km W of Firenze (382808 inhabitants)
96 Km W 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 1.0 2021-11-14
19:09:05
43.7183 10.2738 8 2021-11-14
19:20:46
Sala Sismica INGV-Roma 97466751
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-14 19:09:05 ± 0.2
Latitude 43.7183 ± 0.0090
Longitude 10.2738 ± 0.0087
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 97466751

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 978
Semi-minor axis of confidence ellipse (meter) 597
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 196
Circular confidence region, given by single value of horizontal uncertainty (meter) 980
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 170
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.5243
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 97466751
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-14 19:20:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.BSSO.HHZ. 2021-11-14T19:11:09.11 3.0 undecidable manual Sg 8.85 0
IV.PIPA.HHZ. 2021-11-14T19:11:03.68 3.0 undecidable manual Pg 15.25 0
IV.MTGR.HHZ. 2021-11-14T19:10:48.70 3.0 negative manual Pg 4.24 0
IV.POFI.HHZ. 2021-11-14T19:10:44.77 3.0 undecidable manual Sg -0.43 0
IX.COL3.HHZ.02 2021-11-14T19:10:33.46 3.0 undecidable manual Pg 7.78 0
OT.OT13.EHZ. 2021-11-14T19:10:29.82 3.0 positive manual Pg 6.3 0
IV.RCAV.EHZ. 2021-11-14T19:10:21.93 3.0 undecidable manual Sn -9.99 0
IV.SGO.HHZ. 2021-11-14T19:10:17.59 3.0 undecidable manual Pn -9.1 0
IV.LPEL.HHZ. 2021-11-14T19:10:07.67 3.0 undecidable manual Pg 2.95 0
IV.MMUR.HNZ. 2021-11-14T19:10:07.40 3.0 undecidable manual Sn -5.51 0
IV.MURB.HHZ. 2021-11-14T19:10:02.29 3.0 undecidable manual Sg -4 0
IV.APEC.HHZ. 2021-11-14T19:09:57.26 3.0 undecidable manual Sn -4.99 0
IV.PP3.EHZ. 2021-11-14T19:09:56.25 3.0 negative manual Pg 4.49 0
IV.VIVA.HHZ. 2021-11-14T19:09:52.32 3.0 negative manual Pn -4.43 0
IV.ARCI.HHZ. 2021-11-14T19:09:48.93 3.0 undecidable manual S -8.15 0
IV.CRMI.HHZ. 2021-11-14T19:09:23.32 0.3 undecidable manual S 81 0.5153 50 -0.3 69
GU.POPM.HHZ. 2021-11-14T19:09:22.63 0.3 undecidable manual S 47 0.4775 50 0.14 72
GU.EQUI.HHZ. 2021-11-14T19:09:21.72 0.3 undecidable manual S 349 0.456 50 -0.14 72
IV.PLMA.HHZ. 2021-11-14T19:09:21.09 0.3 undecidable manual S 318 0.4488 50 -0.56 65
IV.BDI.HNZ. 2021-11-14T19:09:20.58 0.3 undecidable manual S 34 0.4155 50 -0.07 73
GU.CARD.HHZ. 2021-11-14T19:09:18.36 0.3 undecidable manual S 26 0.3426 50 -0.14 74
IV.CRMI.HHZ. 2021-11-14T19:09:16.27 0.3 undecidable manual P 81 0.5153 50 0.42 67
IV.MAGO.CHE. 2021-11-14T19:09:16.36 1.0 undecidable manual P 148 0.5243 50 0.34 23
GU.EQUI.HHZ. 2021-11-14T19:09:15.12 0.3 undecidable manual P 349 0.456 50 0.28 70
GU.MAIM.HHZ. 2021-11-14T19:09:15.32 0.3 undecidable manual S 39 0.25 106 0.04 76
GU.POPM.HHZ. 2021-11-14T19:09:15.61 0.6 undecidable manual P 47 0.4775 50 0.41 45
IV.PLMA.HHZ. 2021-11-14T19:09:14.62 0.3 undecidable manual P 318 0.4488 50 -0.1 73
IV.BDI.HNZ. 2021-11-14T19:09:14.45 0.6 undecidable manual P 34 0.4155 50 0.31 47
GU.CARD.HHZ. 2021-11-14T19:09:13.06 0.3 undecidable manual P 26 0.3426 50 0.17 73
IV.PII.HHZ. 2021-11-14T19:09:12.26 0.3 undecidable manual S 89 0.1817 112 -0.52 70
GU.MAIM.HHZ. 2021-11-14T19:09:11.37 0.1 undecidable manual P 39 0.25 106 0.33 96
IV.PII.HHZ. 2021-11-14T19:09:09.40 0.1 undecidable manual P 89 0.1817 112 -0.19 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.MAIM.HHN. ML:1.1 7.108667E-5 0.1664 AML other m 2021-11-14T19:09:15.62
GU.MAIM.HHE. ML:1 5.346991E-5 0.2432 AML other m 2021-11-14T19:09:15.71
GU.CARD.HHN. ML:1.4 9.1805855E-5 0.1408 AML other m 2021-11-14T19:09:19.11
GU.CARD.HHE. ML:1.4 9.2047455E-5 0.1408 AML other m 2021-11-14T19:09:18.92
GU.POPM.HHE. ML:1.2 3.275215E-5 0.2048 AML other m 2021-11-14T19:09:24.24
GU.POPM.HHN. ML:1.2 3.8743895E-5 0.1664 AML other m 2021-11-14T19:09:26.48
GU.EQUI.HHE. ML:0.6 1.2120335E-5 0.0768 AML other m 2021-11-14T19:09:22.60
GU.EQUI.HHN. ML:0.6 1.2273891E-5 0.0896 AML other m 2021-11-14T19:09:22.98
IV.CRMI.HHE. ML:0.4 5.38803E-6 0.2688 AML other m 2021-11-14T19:09:23.78
IV.CRMI.HHN. ML:0.7 1.09839255E-5 0.1408 AML other m 2021-11-14T19:09:23.76
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