Earthquake with magnitude of ML 1.3 on date 15-10-2018 and time 23:19:16 (UTC) in region 5 km N Borgo San Lorenzo (FI)

A magnitude ML 1.3 earthquake occured in region: 5 km N Borgo San Lorenzo (FI), on

  • 15-10-2018 23:19:16 (UTC)
  • 16-10-2018 01:19:16 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44, 11.4 at 10 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
Borgo San Lorenzo FI 5 18211 18211
Scarperia e San Piero FI 7 12217 30428
Vicchio FI 9 8044 38472
Barberino di Mugello FI 13 10836 49308
Vaglia FI 14 5073 54381
Firenzuola FI 14 4726 59107
Dicomano FI 16 5515 64622
Palazzuolo sul Senio FI 18 1154 65776
Marradi FI 20 3139 68915
San Godenzo FI 20 1167 70082

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km E of Prato (191150 inhabitants)
28 Km NE of Firenze (382808 inhabitants)
32 Km NE of Scandicci (50609 inhabitants)
39 Km E of Pistoia (90315 inhabitants)
47 Km SW of Imola (69797 inhabitants)
51 Km SW of Faenza (58541 inhabitants)
56 Km S of Bologna (386663 inhabitants)
57 Km W of Forlì (117913 inhabitants)
69 Km W of Cesena (96758 inhabitants)
71 Km NW of Arezzo (99543 inhabitants)
74 Km E of Lucca (89046 inhabitants)
76 Km N of Siena (53903 inhabitants)
79 Km SW of Ravenna (159116 inhabitants)
81 Km SE of Modena (184973 inhabitants)
86 Km E of Pisa (89158 inhabitants)
93 Km E of Viareggio (62467 inhabitants)
94 Km W of Rimini (147750 inhabitants)
95 Km S of Ferrara (133155 inhabitants)
96 Km SE of Carpi (70699 inhabitants)
99 Km SE of Reggio nell'Emilia (171345 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
Rev 1000 ML 1.3 2018-10-15
23:19:16
44 11.4 10 2019-06-04
09:16:01
Bollettino Sismico Italiano INGV 62869161
Rev 100 ML 1.4 2018-10-15
23:19:16
44 11.4 9 2018-10-15
23:44:20
Sala Sismica INGV-Roma 61982191
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-10-15 23:19:16 ± 0.04
Latitude 44.00 ± 0.00
Longitude 11.40 ± 0.00
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 62869161

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 335
Semi-minor axis of confidence ellipse (meter) 170
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 8
Circular confidence region, given by single value of horizontal uncertainty (meter) 340
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 48
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.06295
Epicentral distance of station farthest from the epicenter (degree) 0.70057
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 17
Type of magnitude ML
Reference to an origin 62869161
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-11-07 17:19:50

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 61982191
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-10-15 23:44:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CSNT.HHZ. 2018-10-15T23:19:34.90 0.3 undecidable manual S 188 0.5297 50 0.18 66
IV.PARC.HHZ. 2018-10-15T23:19:30.13 1.0 undecidable manual P 120 0.7006 50 0.31 21
IV.SFI.EHZ. 2018-10-15T23:19:29.00 0.6 undecidable manual S 106 0.3372 50 -0.03 47
IV.PII.HHZ. 2018-10-15T23:19:29.97 0.6 undecidable manual P 247 0.6853 50 0.41 41
IV.CRMI.HHZ. 2018-10-15T23:19:29.80 0.3 undecidable manual S 236 0.3615 50 0.06 70
IV.ASQU.HHZ. 2018-10-15T23:19:29.20 0.6 undecidable manual S 125 0.3471 50 -0.11 46
IV.MTCR.EHZ. 2018-10-15T23:19:27.10 0.3 undecidable manual S 276 0.2842 50 -0.36 67
IV.FNVD.HHZ. 2018-10-15T23:19:26.90 0.6 undecidable manual S 311 0.2599 50 0.17 47
IV.CSNT.HHZ. 2018-10-15T23:19:26.98 0.1 undecidable manual P 188 0.5297 50 0.08 90
IV.LMD.HHZ. 2018-10-15T23:19:25.80 0.6 undecidable manual S 70 0.2374 110 -0.13 47
IV.MPPT.EHZ. 2018-10-15T23:19:25.10 0.6 undecidable manual S 260 0.2239 111 -0.32 45
IV.CRMI.HHZ. 2018-10-15T23:19:24.02 0.1 undecidable manual P 236 0.3615 50 0 95
IV.BRIS.HHN. 2018-10-15T23:19:24.16 0.6 undecidable manual P 49 0.3498 50 0.34 44
IV.RUFI.EHZ. 2018-10-15T23:19:23.50 0.6 undecidable manual S 153 0.179 115 -0.34 46
IV.ASQU.HHZ. 2018-10-15T23:19:23.89 0.6 negative manual P 125 0.3471 50 0.12 46
IV.MOCL.EHZ. 2018-10-15T23:19:23.00 0.1 undecidable manual S 273 0.1547 119 -0.02 98
IV.SFI.EHZ. 2018-10-15T23:19:23.55 0.3 positive manual P 106 0.3372 50 -0.06 70
IV.MTCR.EHZ. 2018-10-15T23:19:22.52 0.1 undecidable manual P 276 0.2842 50 -0.18 92
IV.FNVD.HHZ. 2018-10-15T23:19:22.13 0.1 undecidable manual P 311 0.2599 50 -0.15 94
IV.MTRZ.HNN. 2018-10-15T23:19:22.93 1.0 undecidable manual P 4 0.3157 50 -0.31 22
IV.LMD.HHZ. 2018-10-15T23:19:21.69 0.1 positive manual P 70 0.2374 110 -0.13 94
IV.MPPT.EHZ. 2018-10-15T23:19:21.51 0.1 undecidable manual P 260 0.2239 111 -0.02 97
IV.MOCL.EHZ. 2018-10-15T23:19:20.39 0.1 undecidable manual P 273 0.1547 119 0.25 94
IV.SEI.HHZ. 2018-10-15T23:19:20.30 0.1 undecidable manual S 335 0.063 144 0.01 100
IV.RUFI.EHZ. 2018-10-15T23:19:20.62 0.1 undecidable manual P 153 0.179 115 0 98
IV.SEI.HHZ. 2018-10-15T23:19:18.79 0.1 undecidable manual P 335 0.063 144 0.22 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MPPT.EHE. ML:0 9.191191E-5 0.2048 AML other m 2018-10-15T23:19:25.44
IV.MPPT.EHN. ML:0 0.000119097635 0.2432 AML other m 2018-10-15T23:19:25.61
IV.LMD.HHN. ML:0 0.00013558425 0.1664 AML other m 2018-10-15T23:19:25.98
IV.LMD.HHE. ML:0 8.082805E-5 0.192 AML other m 2018-10-15T23:19:27.34
IV.FNVD.HHE. ML:0 0.0001029506 0.128 AML other m 2018-10-15T23:19:27.76
IV.FNVD.HHN. ML:0 0.00014268835 0.1024 AML other m 2018-10-15T23:19:27.82
IV.SFI.EHE. ML:0 0.0001211044 0.2048 AML other m 2018-10-15T23:19:29.43
IV.SFI.EHN. ML:0 0.0001287484 0.1792 AML other m 2018-10-15T23:19:29.71
IV.CSNT.HHE. ML:0 0.00016585425 0.32 AML other m 2018-10-15T23:19:35.26
IV.CSNT.HHN. ML:0 0.000201341 0.2304 AML other m 2018-10-15T23:19:35.92
IV.RUFI.EHE. ML:0.9 5.720923E-5 0.3072 AML other m 2018-10-15T23:19:27.08
IV.RUFI.EHN. ML:1 6.884617E-5 0.512 AML other m 2018-10-15T23:19:28.92
IV.MTCR.EHN. ML:1.3 9.033764E-5 0.2816 AML other m 2018-10-15T23:19:27.74
IV.MTCR.EHE. ML:1.3 8.796069E-5 0.1024 AML other m 2018-10-15T23:19:28.44
IV.CRMI.HNE. ML:0.9 3.0088885E-5 0.256 AML other m 2018-10-15T23:19:33.32
IV.CRMI.HHE. ML:0.9 2.8325341E-5 0.192 AML other m 2018-10-15T23:19:33.31
IV.CRMI.HHN. ML:0.8 2.18655805E-5 0.2176 AML other m 2018-10-15T23:19:34.09
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download