Earthquake with magnitude of ML 1.1 on date 21-05-2014 and time 22:32:21 (UTC) in region 3 km E Lucca (LU)

A magnitude ML 1.1 earthquake occured in region: 3 km E Lucca (LU), on

  • 21-05-2014 22:32:21 (UTC)
  • 22-05-2014 00:32:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.8330, 10.5340 at 10 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
Lucca LU 3 89046 89046
Capannori LU 4 46252 135298
Porcari LU 7 8845 144143
San Giuliano Terme PI 11 31399 175542
Montecarlo LU 11 4428 179970
Altopascio LU 12 15481 195451
Calci PI 12 6426 201877
Buti PI 12 5791 207668
Vecchiano PI 13 12189 219857
Villa Basilica LU 14 1633 221490
Pescia PT 15 19644 241134
Chiesina Uzzanese PT 15 4552 245686
Uzzano PT 15 5770 251456
Bientina PI 15 8062 259518
Vicopisano PI 15 8559 268077
Massarosa LU 16 22471 290548
Borgo a Mozzano LU 16 6994 297542
Buggiano PT 17 8825 306367
Pisa PI 17 89158 395525
Cascina PI 17 45257 440782
Ponte Buggianese PT 17 8804 449586
Pescaglia LU 18 3526 453112
Calcinaia PI 18 12439 465551
Massa e Cozzile PT 19 7983 473534
Santa Maria a Monte PI 20 13253 486787

Municipalities with at least 50000 inhabitants

An earthquake occurred to
3 Km E of Lucca (89046 inhabitants)
17 Km NE of Pisa (89158 inhabitants)
23 Km E of Viareggio (62467 inhabitants)
33 Km W of Pistoia (90315 inhabitants)
36 Km NE of Livorno (159219 inhabitants)
39 Km SE of Massa (69479 inhabitants)
44 Km SE of Carrara (63133 inhabitants)
46 Km W of Prato (191150 inhabitants)
53 Km W of Scandicci (50609 inhabitants)
59 Km W of Firenze (382808 inhabitants)
64 Km E of La Spezia (93959 inhabitants)
86 Km NW of Siena (53903 inhabitants)
96 Km SW of Modena (184973 inhabitants)
97 Km S of Reggio nell'Emilia (171345 inhabitants)
98 Km SW of Bologna (386663 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 1.1 2014-05-21
22:32:21
43.8328 10.5337 10 2014-10-21
12:08:56
Sala Sismica INGV-Roma 6556871
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2014-05-21 22:32:21 ± 0.17
Latitude 43.8328 ± 0.0063
Longitude 10.5337 ± 0.0274
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 6556871

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2180
Semi-minor axis of confidence ellipse (meter) 710
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 276
Circular confidence region, given by single value of horizontal uncertainty (meter) 2180.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 166
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.26620
Number of stations at which the event was observed 8
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 1
Type of magnitude ML
Reference to an origin 6556871
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2014-05-21 22:39:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.RRL.HHZ. 2014-05-21T22:33:52.99 3.0 undecidable manual Sg 13.16 0
IV.ATCC.EHZ. 2014-05-21T22:33:05.99 3.0 undecidable manual Sn 0.71 0
IV.CRE.HHZ. 2014-05-21T22:32:49.99 3.0 undecidable manual Sn -0.75 0
IV.LMD.HHZ. 2014-05-21T22:32:34.58 3.0 undecidable manual P -0.15 0
GU.POPM.HHZ. 2014-05-21T22:32:32.02 0.1 undecidable manual S 37 29.5482 50 -0.28 96
IV.BDI.HHZ. 2014-05-21T22:32:31.26 0.1 undecidable manual S 11 25.9518 50 -0.09 100
GU.CARD.HHZ. 2014-05-21T22:32:29.92 0.1 undecidable manual S 349 21.867 115 -0.2 99
GU.POPM.HHZ. 2014-05-21T22:32:28.31 0.3 negative manual P 37 29.5482 50 0.46 69
IV.BDI.HHZ. 2014-05-21T22:32:27.76 0.6 undecidable manual P 11 25.9518 50 0.46 46
IV.PII.HHZ. 2014-05-21T22:32:26.89 0.1 undecidable manual S 183 12.2766 130 -0.43 95
GU.CARD.HHZ. 2014-05-21T22:32:26.95 1.0 undecidable manual P 349 21.867 115 0.36 24
IV.PII.HHZ. 2014-05-21T22:32:25.33 0.1 undecidable manual P 183 12.2766 130 0.36 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PII.HHE. ML:1.1 0.00013800000000000002 0.22 AML other m 2014-05-21T22:32:26.94
IV.PII.HHN. ML:1.0 0.0001172 0.26 AML other m 2014-05-21T22:32:26.94
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