Earthquake with magnitude of ML 1.4 on date 28-08-2017 and time 22:25:11 (Italy) in region Costa Toscana livornese (Livorno)

A magnitude ML 1.4 earthquake occured in region: Costa Toscana livornese (Livorno), on

  • 28-08-2017 20:25:11 (UTC)
  • 28-08-2017 22:25:11 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.5800, 10.1320 at 13 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Livorno LI 15 159219 159219

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km W of Livorno (159219 inhabitants)
27 Km SW of Pisa (89158 inhabitants)
33 Km S of Viareggio (62467 inhabitants)
42 Km SW of Lucca (89046 inhabitants)
51 Km S of Massa (69479 inhabitants)
56 Km S of Carrara (63133 inhabitants)
64 Km SE of La Spezia (93959 inhabitants)
74 Km SW of Pistoia (90315 inhabitants)
85 Km W of Prato (191150 inhabitants)
87 Km W of Scandicci (50609 inhabitants)
93 Km W of Firenze (382808 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 1.4 2017-08-28
20:25:11
43.5798 10.1322 13 2018-07-06
15:40:33
Bollettino Sismico Italiano INGV 50215781
Reviewed
Rev100
ML 1.5 2017-08-28
20:25:11
43.5985 10.1353 7 2017-08-28
20:29:24
Sala Sismica INGV-Roma 49461801
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-08-28 20:25:11 ± 0.1
Latitude 43.5798 ± 0.0054
Longitude 10.1322 ± 0.0087
Depth (km) 13 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 50215781

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 750
Semi-minor axis of confidence ellipse (meter) 103
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 110
Circular confidence region, given by single value of horizontal uncertainty (meter) 750.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 100
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.23203
Epicentral distance of station farthest from the epicenter (degree) 0.95238
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 49461801
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-08-28 20:29:24

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 26
Type of magnitude ML
Reference to an origin 50215781
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-01-17 10:14:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.OSSC.HHZ. 2017-08-28T20:25:38.36 0.6 undecidable manual S 94 89.7435 91 0.32 43
IV.CRMI.HHZ. 2017-08-28T20:25:33.12 0.3 undecidable manual S 70 72.0723 92 -0.2 67
IV.BDI.HHZ. 2017-08-28T20:25:31.27 0.6 undecidable manual S 35 65.1903 92 -0.21 45
IV.RIBO.EHZ.01 2017-08-28T20:25:29.03 0.3 undecidable manual P 133 101.7204 91 0.31 62
IV.CASP.HHE. 2017-08-28T20:25:29.30 0.3 undecidable manual P 146 105.7164 91 -0.04 65
IV.PLMA.HHZ. 2017-08-28T20:25:28.94 0.6 undecidable manual S 337 56.6988 92 -0.29 46
GU.GRAM.HHZ. 2017-08-28T20:25:28.74 1.0 undecidable manual P 357 101.2209 91 0.09 22
GU.CARD.HHZ. 2017-08-28T20:25:28.80 0.6 undecidable manual S 29 56.8986 92 -0.47 44
IV.MSSA.HHZ. 2017-08-28T20:25:28.21 0.6 undecidable manual P 329 95.3379 91 0.47 40
IV.OSSC.HHZ. 2017-08-28T20:25:27.14 1.0 undecidable manual P 94 89.7435 91 0.26 21
IV.MAGO.HHZ. 2017-08-28T20:25:27.82 0.3 undecidable manual S 129 54.3012 92 -0.77 57
IV.TRIF.HHZ. 2017-08-28T20:25:26.32 0.3 undecidable manual P 129 80.7636 91 0.83 55
IV.CRMI.HHZ. 2017-08-28T20:25:24.62 0.1 undecidable manual P 70 72.0723 92 0.47 85
GU.SARM.EHZ. 2017-08-28T20:25:24.13 0.6 undecidable manual P 18 70.374 92 0.24 45
GU.EQUI.HHZ. 2017-08-28T20:25:23.16 0.3 undecidable manual P 1 65.0904 92 0.08 70
IV.BDI.HHZ. 2017-08-28T20:25:23.09 0.1 undecidable manual P 35 65.1903 92 0 95
MN.VLC.HHZ. 2017-08-28T20:25:23.59 0.3 undecidable manual P 17 67.4769 92 0.15 68
IV.PII.HHZ. 2017-08-28T20:25:22.88 0.6 undecidable manual S 63 35.2425 94 -0.62 42
GU.CARD.HHZ. 2017-08-28T20:25:21.69 0.1 undecidable manual P 29 56.8986 92 -0.13 94
IV.MAGO.HHZ. 2017-08-28T20:25:21.58 0.3 undecidable manual P 129 54.3012 92 0.16 71
IV.PLMA.HHZ. 2017-08-28T20:25:21.75 0.3 undecidable manual P 337 56.6988 92 -0.04 72
IV.GROG.HHZ. 2017-08-28T20:25:20.60 0.3 undecidable manual S 229 25.752 97 -0.38 70
IV.PII.HHZ. 2017-08-28T20:25:18.45 0.1 positive manual P 63 35.2425 94 -0.03 99
IV.GROG.HHZ. 2017-08-28T20:25:16.96 0.1 positive manual P 229 25.752 97 -0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GROG.HHN. ML:1.5 0.0001887336 0.1152 AML other m 2017-08-28T20:25:22.58
IV.GROG.HHE. ML:1.7 0.00025707705 0.1792 AML other m 2017-08-28T20:25:22.72
IV.PII.HHN. ML:1.5 0.000127045405 0.2176 AML other m 2017-08-28T20:25:23.48
IV.PII.HHE. ML:1.6 0.00016186085 1.6768 AML other m 2017-08-28T20:25:24.49
IV.PLMA.HHE. ML:1.3 0.00004160996 0.1664 AML other m 2017-08-28T20:25:29.35
IV.MAGO.HHE. ML:1.6 0.00009435827499999999 0.064 AML other m 2017-08-28T20:25:29.57
GU.CARD.HHE. ML:1.7 0.00012209006 0.1152 AML other m 2017-08-28T20:25:29.91
IV.MAGO.HHN. ML:1.6 0.00008562614 0.1024 AML other m 2017-08-28T20:25:30.00
IV.PLMA.HHN. ML:1.3 0.000040718575 0.192 AML other m 2017-08-28T20:25:30.55
GU.CARD.HHN. ML:1.8 0.0001529393 0.1152 AML other m 2017-08-28T20:25:30.62
MN.VLC.HHE. ML:1.3 0.00003668539499999999 0.1792 AML other m 2017-08-28T20:25:33.20
GU.EQUI.HHE. ML:1.3 0.000035811835 0.2048 AML other m 2017-08-28T20:25:33.32
GU.SARM.EHE. ML:1.5 0.0000557207765 0.2816 AML other m 2017-08-28T20:25:33.38
GU.SARM.EHN. ML:1.7 0.000085567245 0.2816 AML other m 2017-08-28T20:25:33.98
IV.BDI.HHN. ML:1.0 0.00001751408 0.1408 AML other m 2017-08-28T20:25:33.93
IV.BDI.HHE. ML:0.9 0.0000135688865 0.3072 AML other m 2017-08-28T20:25:34.55
IV.CRMI.HHN. ML:1.0 0.000013040275000000001 0.3456 AML other m 2017-08-28T20:25:35.50
IV.CRMI.HHE. ML:0.5 0.000006892519999999999 0.2944 AML other m 2017-08-28T20:25:35.75
GU.EQUI.HHN. ML:1.1 0.000024876204999999998 0.2816 AML other m 2017-08-28T20:25:36.50
IV.OSSC.HHN. ML:1.3 0.000023658765 0.384 AML other m 2017-08-28T20:25:39.39
IV.OSSC.HHE. ML:1.4 0.0000309983 0.448 AML other m 2017-08-28T20:25:40.59
IV.MSSA.HHE. ML:1.4 0.00002342452 4.3008 AML other m 2017-08-28T20:25:42.65
IV.MSSA.HHN. ML:1.3 0.000022316579999999998 0.4864 AML other m 2017-08-28T20:25:43.64
IV.RIBO.EHE.01 ML:1.5 0.00002798556 0.2944 AML other m 2017-08-28T20:25:44.28
GU.GRAM.HHE. ML:1.7 0.000049234195 0.256 AML other m 2017-08-28T20:25:44.60
GU.GRAM.HHN. ML:1.6 0.00003808755 0.256 AML other m 2017-08-28T20:25:45.62
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download