Earthquake with magnitude of ML 1.2 on date 28-09-2018 and time 14:09:02 (Italy) in region 3 km E Firenzuola (FI)

A magnitude ML 1.2 earthquake occured in region: 3 km E Firenzuola (FI), on

  • 28-09-2018 12:09:02 (UTC)
  • 28-09-2018 14:09:02 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.11, 11.42 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
Firenzuola FI 3 4726 4726
Palazzuolo sul Senio FI 11 1154 5880
Castel del Rio BO 13 1246 7126
Monghidoro BO 14 3749 10875
Marradi FI 16 3139 14014
Borgo San Lorenzo FI 18 18211 32225
Scarperia e San Piero FI 18 12217 44442
San Benedetto Val di Sambro BO 19 4315 48757
Barberino di Mugello FI 19 10836 59593
Loiano BO 19 4294 63887
Fontanelice BO 20 1943 65830

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km SW of Imola (69797 inhabitants)
36 Km NE of Prato (191150 inhabitants)
40 Km NE of Firenze (382808 inhabitants)
42 Km W of Faenza (58541 inhabitants)
43 Km S of Bologna (386663 inhabitants)
44 Km NE of Scandicci (50609 inhabitants)
44 Km E of Pistoia (90315 inhabitants)
52 Km W of Forlì (117913 inhabitants)
66 Km W of Cesena (96758 inhabitants)
71 Km SE of Modena (184973 inhabitants)
71 Km W of Ravenna (159116 inhabitants)
79 Km E of Lucca (89046 inhabitants)
81 Km NW of Arezzo (99543 inhabitants)
82 Km S of Ferrara (133155 inhabitants)
86 Km SE of Carpi (70699 inhabitants)
88 Km N of Siena (53903 inhabitants)
90 Km SE of Reggio nell'Emilia (171345 inhabitants)
92 Km W of Rimini (147750 inhabitants)
92 Km E of Pisa (89158 inhabitants)
97 Km E of Viareggio (62467 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 2018-09-28
12:09:02
44.11 11.42 10 2019-06-04
09:16:13
Bollettino Sismico Italiano INGV 67984631
Rev 100 ML 1.2 2018-09-28
12:09:02
44.13 11.42 10 2018-09-28
12:17:03
Sala Sismica INGV-Roma 61414571
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-09-28 12:09:02 ± 0.11
Latitude 44.11 ± 0.01
Longitude 11.42 ± 0.01
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 67984631

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 889
Semi-minor axis of confidence ellipse (meter) 301
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 173
Circular confidence region, given by single value of horizontal uncertainty (meter) 890
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 116
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.30847
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 61414571
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-09-28 12:17:03

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 67984631
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-04-26 14:38:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MRB1.HHZ. 2018-09-28T12:10:40.43 3.0 undecidable manual Sn -2.29 0
IV.USI.HHZ. 2018-09-28T12:10:29.91 3.0 positive manual Pg 11.29 0
IV.GIUL.HHZ. 2018-09-28T12:10:22.62 3.0 undecidable manual Sn 1.39 0
IV.EUCT.HNZ. 2018-09-28T12:09:59.42 3.0 undecidable manual Sn 4.21 0
IV.MCIV.HHZ. 2018-09-28T12:09:53.58 3.0 undecidable manual Sg 3.66 0
RD.PGF.BHZ. 2018-09-28T12:09:48.20 3.0 undecidable manual Pg 9.24 0
IV.SACS.HHZ. 2018-09-28T12:09:46.07 3.0 undecidable manual Sn -1.56 0
NI.PALA.HHZ. 2018-09-28T12:09:37.04 3.0 undecidable manual S -3.09 0
IV.PTQR.HHZ. 2018-09-28T12:09:30.37 3.0 negative manual Pn -4.14 0
IV.MPPT.EHZ. 2018-09-28T12:09:14.20 0.6 undecidable manual S 237 0.2797 50 0.35 47
IV.MTCR.EHZ. 2018-09-28T12:09:14.65 0.3 undecidable manual S 254 0.3085 50 -0.03 75
IV.MOCL.EHZ. 2018-09-28T12:09:11.40 0.3 undecidable manual S 238 0.1996 114 0.21 73
IV.FNVD.HHE. 2018-09-28T12:09:11.79 0.3 undecidable manual S 285 0.2167 112 -0.01 76
IV.LMD.HHN. 2018-09-28T12:09:11.85 0.3 undecidable manual S 99 0.2122 112 0.21 73
IV.MPPT.EHZ. 2018-09-28T12:09:09.20 0.1 undecidable manual P 237 0.2797 50 0.03 100
IV.MTCR.EHZ. 2018-09-28T12:09:09.53 0.1 undecidable manual P 254 0.3085 50 -0.12 98
IV.MTRZ.HNE. 2018-09-28T12:09:08.14 0.3 undecidable manual P 2 0.2005 114 0.49 69
IV.SEI.HHZ. 2018-09-28T12:09:07.31 0.3 undecidable manual S 215 0.071 141 0.18 76
IV.LMD.HHN. 2018-09-28T12:09:07.62 0.1 undecidable manual P 99 0.2122 112 -0.28 96
IV.SBPO.HNZ. 2018-09-28T12:09:07.24 3.0 positive manual P -0.18 0
IV.MOCL.EHZ. 2018-09-28T12:09:07.67 0.3 negative manual P 238 0.1996 114 0.04 76
IV.FNVD.HHE. 2018-09-28T12:09:07.53 0.3 undecidable manual P 285 0.2167 112 -0.46 69
IV.SEI.HHZ. 2018-09-28T12:09:05.01 0.1 positive manual P 215 0.071 141 -0.28 99
IV.VENL.HNZ. 2018-09-28T12:09:02.99 3.0 negative manual P 0.33 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SEI.HHE. ML:1.5 0.0004875 0.92 AML other m 2018-09-28T12:09:07.53
IV.SEI.HHN. ML:1.5 0.0004339637 0.2624 AML other m 2018-09-28T12:09:07.56
IV.MPPT.EHN. ML:1 4.763842E-5 1.68 AML other m 2018-09-28T12:09:14.02
IV.MPPT.EHE. ML:0.7 2.7183895E-5 1.6224 AML other m 2018-09-28T12:09:15.16
IV.MTCR.EHN. ML:1 4.168095E-5 0.2624 AML other m 2018-09-28T12:09:15.40
IV.MTCR.EHE. ML:1.2 6.4227155E-5 0.2432 AML other m 2018-09-28T12:09:15.40
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