Earthquake with magnitude of ML 1.2 on date 13-10-2018 and time 01:52:34 (UTC) in region 3 km N Borgo San Lorenzo (FI)

A magnitude ML 1.2 earthquake occured in region: 3 km N Borgo San Lorenzo (FI), on

  • 13-10-2018 01:52:34 (UTC)
  • 13-10-2018 03:52:34 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.98, 11.39 at 8 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 3 18211 18211
Scarperia e San Piero FI 6 12217 30428
Vicchio FI 8 8044 38472
Vaglia FI 12 5073 43545
Barberino di Mugello FI 12 10836 54381
Dicomano FI 15 5515 59896
Firenzuola FI 15 4726 64622
Palazzuolo sul Senio FI 19 1154 65776
Rufina FI 19 7346 73122
San Godenzo FI 19 1167 74289
Londa FI 20 1840 76129

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km E of Prato (191150 inhabitants)
26 Km NE of Firenze (382808 inhabitants)
30 Km NE of Scandicci (50609 inhabitants)
38 Km E of Pistoia (90315 inhabitants)
49 Km SW of Imola (69797 inhabitants)
52 Km SW of Faenza (58541 inhabitants)
57 Km S of Bologna (386663 inhabitants)
58 Km W of Forlì (117913 inhabitants)
70 Km NW of Arezzo (99543 inhabitants)
70 Km W of Cesena (96758 inhabitants)
73 Km E of Lucca (89046 inhabitants)
74 Km N of Siena (53903 inhabitants)
80 Km SW of Ravenna (159116 inhabitants)
82 Km SE of Modena (184973 inhabitants)
85 Km E of Pisa (89158 inhabitants)
92 Km E of Viareggio (62467 inhabitants)
94 Km W of Rimini (147750 inhabitants)
97 Km S of Ferrara (133155 inhabitants)
98 Km SE of Carpi (70699 inhabitants)
99 Km E of Livorno (159219 inhabitants)
100 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 1.2 2018-10-13
01:52:34
43.98 11.39 8 2019-06-04
09:16:15
Bollettino Sismico Italiano INGV 68303671
Rev 100 ML 1.2 2018-10-13
01:52:34
44 11.4 8 2018-10-13
01:56:33
Sala Sismica INGV-Roma 61895541
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-10-13 01:52:34 ± 0.08
Latitude 43.98 ± 0.01
Longitude 11.39 ± 0.01
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 68303671

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 606
Semi-minor axis of confidence ellipse (meter) 268
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 4
Circular confidence region, given by single value of horizontal uncertainty (meter) 610
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 98
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.67809
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 68303671
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-05-06 10:31:34

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 61895541
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-10-13 01:56:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MBAL.EHZ. 2018-10-13T01:53:09.45 3.0 positive manual Pn 0.35 0
IV.PII.HHZ. 2018-10-13T01:52:57.98 0.6 undecidable manual S 248 0.6781 50 -0.17 44
GU.POPM.HHZ. 2018-10-13T01:52:51.59 0.6 undecidable manual S 278 0.4605 50 -0.11 46
IV.BLLA.EHZ. 2018-10-13T01:52:50.57 3.0 positive manual P 0.61 0
IV.MTRZ.HNN. 2018-10-13T01:52:49.32 0.6 undecidable manual S 4 0.3292 50 1.52 27
IV.PII.HHZ. 2018-10-13T01:52:48.55 0.3 undecidable manual P 248 0.6781 50 0.23 65
IV.RIBO.EHZ.01 2018-10-13T01:52:47.25 3.0 positive manual P -0.27 0
IV.SFI.EHZ. 2018-10-13T01:52:47.82 0.6 undecidable manual S 104 0.3372 50 -0.22 47
IV.MTCR.EHZ. 2018-10-13T01:52:45.58 0.6 undecidable manual S 279 0.2833 104 -0.56 43
GU.POPM.HHZ. 2018-10-13T01:52:44.35 0.3 undecidable manual P 278 0.4605 50 -0.25 68
IV.LMD.HHZ. 2018-10-13T01:52:44.44 0.3 undecidable manual S 68 0.2446 106 -0.26 71
IV.MPPT.EHN. 2018-10-13T01:52:43.71 0.6 undecidable manual S 263 0.2185 108 -0.03 50
IV.SFI.EHZ. 2018-10-13T01:52:42.18 0.1 undecidable manual P 104 0.3372 50 -0.3 92
IV.RUFI.EHZ. 2018-10-13T01:52:42.18 0.3 undecidable manual S 150 0.1691 113 0.23 72
IV.MTRZ.HNN. 2018-10-13T01:52:42.69 0.3 undecidable manual P 4 0.3292 50 0.35 68
IV.MTCR.EHZ. 2018-10-13T01:52:41.13 0.1 undecidable manual P 279 0.2833 104 -0.25 93
IV.MOCL.EHZ. 2018-10-13T01:52:41.51 0.3 undecidable manual S 278 0.1529 115 0.12 74
IV.LMD.HHZ. 2018-10-13T01:52:40.26 0.1 undecidable manual P 68 0.2446 106 -0.29 93
IV.FNVD.HHZ. 2018-10-13T01:52:40.69 0.3 undecidable manual P 314 0.2662 105 -0.32 69
IV.MPPT.EHN. 2018-10-13T01:52:40.08 0.1 undecidable manual P 263 0.2185 108 0.08 98
IV.RUFI.EHZ. 2018-10-13T01:52:39.31 0.1 undecidable manual P 150 0.1691 113 0.34 94
IV.MOCL.EHZ. 2018-10-13T01:52:38.88 0.1 undecidable manual P 278 0.1529 115 0.24 96
IV.SEI.HHZ. 2018-10-13T01:52:38.87 0.3 undecidable manual S 341 0.0737 134 0.05 76
IV.SEI.HHZ. 2018-10-13T01:52:37.28 0.1 undecidable manual P 341 0.0737 134 0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LMD.HHE. ML:1.2 8.35E-5 0.34 AML other m 2018-10-13T01:52:44.68
IV.LMD.HHN. ML:1.4 0.00013425 0.16 AML other m 2018-10-13T01:52:44.52
IV.SFI.EHN. ML:1.1 4.645E-5 1.04 AML other m 2018-10-13T01:52:48.13
IV.SFI.EHE. ML:1 4.18E-5 0.32 AML other m 2018-10-13T01:52:48.76
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