Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 10-09-2018 and time 04:06:19 (Italy) in region 4 km SE San Giuliano Terme (PI)

A magnitude ML 2.1 earthquake occured in region: 4 km SE San Giuliano Terme (PI), on

  • 10-09-2018 02:06:19 (UTC)
  • 10-09-2018 04:06:19 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.7340, 10.4620 at 7 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
San Giuliano Terme PI 4 31399 31399
Calci PI 5 6426 37825
Pisa PI 5 89158 126983
Vecchiano PI 8 12189 139172
Cascina PI 10 45257 184429
Buti PI 10 5791 190220
Vicopisano PI 11 8559 198779
Lucca LU 13 89046 287825
Bientina PI 13 8062 295887
Calcinaia PI 14 12439 308326
Capannori LU 16 46252 354578
Pontedera PI 16 29223 383801
Collesalvetti LI 16 16827 400628
Porcari LU 17 8845 409473
Massarosa LU 18 22471 431944
Ponsacco PI 19 15611 447555
Fauglia PI 19 3682 451237
Santa Maria a Monte PI 19 13253 464490
Altopascio LU 19 15481 479971
Crespina Lorenzana PI 20 5457 485428

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km E of Pisa (89158 inhabitants)
13 Km S of Lucca (89046 inhabitants)
23 Km SE of Viareggio (62467 inhabitants)
24 Km NE of Livorno (159219 inhabitants)
42 Km SE of Massa (69479 inhabitants)
43 Km SW of Pistoia (90315 inhabitants)
48 Km SE of Carrara (63133 inhabitants)
54 Km W of Prato (191150 inhabitants)
58 Km W of Scandicci (50609 inhabitants)
64 Km W of Firenze (382808 inhabitants)
66 Km SE of La Spezia (93959 inhabitants)
84 Km NW of Siena (53903 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
Bulletin
Rev1000 		ML 2.1 2018-09-10
02:06:19		 43.7342 10.4622 7 2019-06-04
09:16:02		 Bollettino Sismico Italiano INGV 63674061
Reviewed
Rev100 		ML 2.1 2018-09-10
02:06:19		 43.7593 10.4677 10 2018-09-10
02:13:22		 Sala Sismica INGV-Roma 60767841
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-09-10 02:06:19 ± 0.08
Latitude 43.7342 ± 0.0027
Longitude 10.4622 ± 0.0087
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 63674061

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 650
Semi-minor axis of confidence ellipse (meter) 158
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 265
Circular confidence region, given by single value of horizontal uncertainty (meter) 650.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 92
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 32
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.18076
Epicentral distance of station farthest from the epicenter (degree) 0.81838
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 23
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 32
Type of magnitude ML
Reference to an origin 60767841
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-09-10 02:13:22

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 32
Type of magnitude ML
Reference to an origin 63674061
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-12-07 07:57:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TRIF.HHN. 2018-09-10T02:06:43.43 0.6 undecidable manual S 153 77.367 50 0.03 46
GU.GSCL.HHZ. 2018-09-10T02:06:41.33 0.6 undecidable manual S 8 69.0753 50 0.12 46
IV.MAGO.HHZ. 2018-09-10T02:06:36.72 0.6 undecidable manual S 163 53.502 50 -0.32 45
Z3.A317A.HHE. 2018-09-10T02:06:35.57 1.0 undecidable manual P 214 90.8424 50 0.26 21
GU.GRAM.HHZ. 2018-09-10T02:06:35.34 1.0 undecidable manual P 340 89.7435 50 0.21 22
MN.VLC.HHZ. 2018-09-10T02:06:35.27 0.6 undecidable manual S 353 47.5191 50 -0.19 47
IV.FROS.HHZ. 2018-09-10T02:06:34.03 0.3 undecidable manual P 136 80.6637 50 0.29 65
IV.RUFI.EHZ. 2018-09-10T02:06:34.65 0.1 undecidable manual P 82 84.6486 50 0.3 86
IV.SEI.HHZ. 2018-09-10T02:06:33.91 0.3 undecidable manual P 63 79.9644 50 0.28 65
IV.TRIF.HHN. 2018-09-10T02:06:33.28 0.1 undecidable manual P 153 77.367 50 0.06 91
IV.CSNT.HHZ. 2018-09-10T02:06:33.00 0.6 undecidable manual P 113 72.5718 50 0.52 42
IV.CRMI.HHZ. 2018-09-10T02:06:33.87 0.6 undecidable manual S 80 42.0246 50 -0.1 48
GU.GSCL.HHZ. 2018-09-10T02:06:32.35 0.1 undecidable manual P 8 69.0753 50 0.4 86
Z3.A318A.HHZ. 2018-09-10T02:06:32.00 0.3 undecidable manual P 172 68.5758 50 0.12 69
IV.BDI.HHZ. 2018-09-10T02:06:32.43 0.6 undecidable manual S 16 37.9287 100 -0.26 47
IV.FNVD.HHZ. 2018-09-10T02:06:32.62 0.1 positive manual P 47 71.373 50 0.31 88
IV.MOCL.EHZ. 2018-09-10T02:06:31.15 0.3 undecidable manual P 62 64.8906 50 -0.15 69
IV.PLMA.HHZ. 2018-09-10T02:06:30.71 0.3 undecidable manual P 306 59.8956 50 0.17 69
GU.CARD.HHZ. 2018-09-10T02:06:30.67 0.6 undecidable manual S 3 32.4453 102 -0.12 49
IV.MPPT.EHZ. 2018-09-10T02:06:29.76 0.1 positive manual P 64 55.9995 50 -0.18 93
Z3.A319A.HHE. 2018-09-10T02:06:29.84 0.6 undecidable manual S 162 30.0477 102 -0.16 49
IV.MTCR.EHZ. 2018-09-10T02:06:29.57 0.1 positive manual P 53 54.1014 50 -0.07 95
IV.MAGO.HHZ. 2018-09-10T02:06:29.31 0.1 undecidable manual P 163 53.502 50 -0.24 92
GU.SARM.EHZ. 2018-09-10T02:06:28.78 0.3 undecidable manual P 354 50.1165 50 -0.25 69
MN.VLC.HHZ. 2018-09-10T02:06:28.32 0.1 undecidable manual P 353 47.5191 50 -0.31 92
IV.CRMI.HHZ. 2018-09-10T02:06:27.55 0.1 undecidable manual P 80 42.0246 50 -0.23 94
GU.POPM.HHZ. 2018-09-10T02:06:27.55 0.1 positive manual P 34 41.7249 50 -0.19 95
IV.BDI.HHZ. 2018-09-10T02:06:26.80 0.1 positive manual P 16 37.9287 100 -0.23 95
GU.MAIM.HHE. 2018-09-10T02:06:26.96 0.6 undecidable manual S 7 20.0688 108 0.31 48
GU.CARD.HHZ. 2018-09-10T02:06:25.78 0.1 positive manual P 3 32.4453 102 -0.16 97
Z3.A319A.HHE. 2018-09-10T02:06:25.44 0.1 positive manual P 162 30.0477 102 -0.04 100
GU.MAIM.HHE. 2018-09-10T02:06:23.90 0.1 undecidable manual P 7 20.0688 108 0.35 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.CARD.HHE. ML:2.2 0.0006779999999999999 1.28 AML other m 2018-09-10T02:06:30.10
GU.CARD.HHN. ML:2.3 0.0009264999999999999 0.24 AML other m 2018-09-10T02:06:30.67
IV.BDI.HNN. ML:2.2 0.0006015 0.52 AML other m 2018-09-10T02:06:32.76
IV.BDI.HHN. ML:2.3 0.000712 0.4 AML other m 2018-09-10T02:06:32.76
IV.BDI.HNE. ML:2.1 0.00046750000000000003 0.16 AML other m 2018-09-10T02:06:32.77
IV.BDI.HHE. ML:2.1 0.000479 0.42 AML other m 2018-09-10T02:06:32.69
GU.POPM.HHN. ML:2.8 0.002005 1.22 AML other m 2018-09-10T02:06:32.37
GU.POPM.HHE. ML:2.7 0.001865 0.16 AML other m 2018-09-10T02:06:33.35
IV.CRMI.HHN. ML:1.7 0.0001575 1.22 AML other m 2018-09-10T02:06:33.24
IV.CRMI.HHE. ML:1.7 0.000157 0.72 AML other m 2018-09-10T02:06:35.39
MN.VLC.HHE. ML:1.6 0.00011 0.64 AML other m 2018-09-10T02:06:35.98
MN.VLC.HHN. ML:1.6 0.00010449999999999999 0.74 AML other m 2018-09-10T02:06:36.53
IV.MAGO.HHE. ML:2.2 0.00035850000000000004 1.36 AML other m 2018-09-10T02:06:36.16
IV.MAGO.HHN. ML:2.3 0.00044750000000000004 0.36 AML other m 2018-09-10T02:06:37.16
IV.MTCR.EHN. ML:2.3 0.0005015000000000001 0.38 AML other m 2018-09-10T02:06:38.18
IV.MTCR.EHE. ML:2.3 0.0005114999999999999 0.42 AML other m 2018-09-10T02:06:38.53
IV.MPPT.EHN. ML:2.0 0.00023449999999999998 0.44 AML other m 2018-09-10T02:06:39.06
GU.GSCL.HHN. ML:2.2 0.00028000000000000003 1.08 AML other m 2018-09-10T02:06:41.93
GU.SARM.EHE. ML:2.1 0.0003075 1.52 AML other m 2018-09-10T02:06:42.77
GU.SARM.EHN. ML:2.1 0.00030199999999999997 0.48 AML other m 2018-09-10T02:06:42.51
IV.MPPT.EHE. ML:1.9 0.0001875 1.3 AML other m 2018-09-10T02:06:43.78
IV.MOCL.EHE. ML:2.2 0.0003195 0.2 AML other m 2018-09-10T02:06:44.41
IV.MOCL.EHN. ML:2.2 0.000273 0.62 AML other m 2018-09-10T02:06:44.47
GU.GSCL.HHE. ML:2.4 0.0003855 0.58 AML other m 2018-09-10T02:06:45.34
IV.CSNT.HHN. ML:1.5 0.000050950000000000005 1.26 AML other m 2018-09-10T02:06:45.32
IV.CSNT.HHE. ML:1.5 0.0000566 0.5 AML other m 2018-09-10T02:06:45.68
IV.FNVD.HHN. ML:2.2 0.000231 0.34 AML other m 2018-09-10T02:06:46.18
IV.FNVD.HHE. ML:2.1 0.00020549999999999998 0.32 AML other m 2018-09-10T02:06:46.30
IV.SEI.HHN. ML:2.4 0.000395 1.5 AML other m 2018-09-10T02:06:48.82
IV.SEI.HHE. ML:2.2 0.0002415 0.72 AML other m 2018-09-10T02:06:49.15
GU.GRAM.HHE. ML:2.3 0.00022499999999999997 0.22 AML other m 2018-09-10T02:06:50.21
GU.GRAM.HHN. ML:2.2 0.000182 1.48 AML other m 2018-09-10T02:06:50.23
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
Waveforms Seismic signals in miniseed + resp format Download