Earthquake with magnitude of ML 1.9 on date 14-03-2021 and time 11:47:57 (UTC) in region 6 km S Firenzuola (FI)

A magnitude ML 1.9 earthquake occured in region: 6 km S Firenzuola (FI), on

  • 14-03-2021 11:47:57 (UTC)
  • 14-03-2021 12:47:57 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.0680, 11.3760 at 9 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 6 4726 4726
Scarperia e San Piero FI 12 12217 16943
Borgo San Lorenzo FI 13 18211 35154
Barberino di Mugello FI 13 10836 45990
Palazzuolo sul Senio FI 15 1154 47144
Vicchio FI 17 8044 55188
Monghidoro BO 18 3749 58937
Vernio PO 18 6060 64997
Marradi FI 19 3139 68136
Castel del Rio BO 19 1246 69382
Vaglia FI 19 5073 74455
Castiglione dei Pepoli BO 20 5648 80103

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km NE of Prato (191150 inhabitants)
34 Km N of Firenze (382808 inhabitants)
38 Km NE of Scandicci (50609 inhabitants)
40 Km E of Pistoia (90315 inhabitants)
42 Km SW of Imola (69797 inhabitants)
47 Km SW of Faenza (58541 inhabitants)
48 Km S of Bologna (386663 inhabitants)
56 Km W of Forlì (117913 inhabitants)
70 Km W of Cesena (96758 inhabitants)
74 Km SE of Modena (184973 inhabitants)
74 Km E of Lucca (89046 inhabitants)
76 Km SW of Ravenna (159116 inhabitants)
78 Km NW of Arezzo (99543 inhabitants)
83 Km N of Siena (53903 inhabitants)
87 Km E of Pisa (89158 inhabitants)
88 Km S of Ferrara (133155 inhabitants)
89 Km SE of Carpi (70699 inhabitants)
92 Km SE of Reggio nell'Emilia (171345 inhabitants)
93 Km E of Viareggio (62467 inhabitants)
95 Km W of Rimini (147750 inhabitants)
99 Km E of Massa (69479 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 1.9 2021-03-14
11:47:57
44.0677 11.376 9 2021-07-12
16:55:09
Bollettino Sismico Italiano INGV 89601781
Reviewed
Rev100
ML 2.0 2021-03-14
11:47:57
44.066 11.3887 7 2021-03-14
12:19:03
Sala Sismica INGV-Roma 88119361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-14 11:47:57 ± 0.1
Latitude 44.0677 ± 0.0045
Longitude 11.3760 ± 0.0063
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 89601781

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 485
Semi-minor axis of confidence ellipse (meter) 445
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 180
Circular confidence region, given by single value of horizontal uncertainty (meter) 490.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 122
Number of associated phases, regardless of their use for origin computation 45
Number of defining phases 24
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.40200
Number of stations at which the event was observed 33
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 89601781
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-04-29 16:54:00

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 88119361
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-14 12:19:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PLLN.EHZ. 2021-03-14T11:50:33.21 3.0 undecidable manual Sn -5.99 0
IV.SCHR.EHZ. 2021-03-14T11:50:32.52 3.0 undecidable manual Sg 22.940001 0
IV.SGO.HNZ. 2021-03-14T11:49:54.89 3.0 undecidable manual Sn 1.26 0
IV.MTGR.HHZ. 2021-03-14T11:49:43.25 3.0 undecidable manual Pg 19.709999 0
IV.SPS2.HHZ. 2021-03-14T11:49:38.46 3.0 negative manual Pg 17.799999 0
IV.SACR.HHZ. 2021-03-14T11:49:37.08 3.0 undecidable manual Sn 6.3 0
IV.CAGR.HHZ. 2021-03-14T11:49:35.64 3.0 undecidable manual Pn 3.8 0
IV.PTRJ.HNZ. 2021-03-14T11:49:32.68 3.0 undecidable manual Sn 3.38 0
IV.MCEL.HHZ. 2021-03-14T11:49:18.94 3.0 undecidable manual Pg 12.98 0
IT.VRB.HGZ. 2021-03-14T11:49:07.75 3.0 undecidable manual Sn -0.19 0
IV.VARE.HHZ. 2021-03-14T11:49:03.99 3.0 undecidable manual Sn -0.23 0
IX.CSG3.HNZ.01 2021-03-14T11:48:57.89 3.0 undecidable manual Pn -0.62 0
IV.CFMN.HHZ. 2021-03-14T11:48:49.39 3.0 negative manual Pn -0.49 0
IV.ZEN8.EHZ. 2021-03-14T11:48:40.51 3.0 undecidable manual S -0.45 0
IV.BRES.EHZ. 2021-03-14T11:48:37.33 3.0 undecidable manual Pg 4.16 0
ST.CARE.EHZ. 2021-03-14T11:48:34.18 3.0 negative manual Pg 4.26 0
IV.GAVE.EHZ. 2021-03-14T11:48:26.04 3.0 negative manual Pg 4.21 0
IV.MMUR.HNZ. 2021-03-14T11:48:20.02 3.0 undecidable manual P 4.26 0
IV.CESI.HHZ. 2021-03-14T11:48:20.07 3.0 undecidable manual P 1.39 0
IV.CSNT.HHZ. 2021-03-14T11:48:13.65 3.0 undecidable manual S -0.62 0
IV.ASQU.HHZ. 2021-03-14T11:48:12.41 0.6 undecidable manual S 132 44.622 50 0.43 43
IV.SFI.EHZ. 2021-03-14T11:48:11.29 0.6 undecidable manual S 116 41.7249 50 0.09 46
IV.TRIF.CHZ. 2021-03-14T11:48:09.77 3.0 undecidable manual P -1.77 0
IV.BRIS.HHZ. 2021-03-14T11:48:09.81 0.6 undecidable manual S 61 35.6421 50 0.24 45
IV.MTRZ.HNN. 2021-03-14T11:48:08.34 0.6 undecidable manual S 8 27.4503 109 1.1 34
IV.RINC.HHZ. 2021-03-14T11:48:07.57 0.6 undecidable manual S 137 27.2505 109 0.39 45
IV.RUFI.EHZ. 2021-03-14T11:48:07.06 0.3 undecidable manual S 157 27.6501 108 -0.24 69
IV.LMD.HHZ. 2021-03-14T11:48:06.41 0.3 undecidable manual S 88 26.4513 109 -0.49 65
IV.MPPT.EHZ. 2021-03-14T11:48:06.49 0.6 undecidable manual S 242 25.8519 110 -0.23 46
IV.ASQU.HHZ. 2021-03-14T11:48:05.53 0.3 undecidable manual P 132 44.622 50 -0.2 67
IV.BRIS.HHZ. 2021-03-14T11:48:04.40 0.6 undecidable manual P 61 35.6421 50 0.06 47
IV.SFI.EHZ. 2021-03-14T11:48:04.95 0.3 undecidable manual P 116 41.7249 50 -0.33 66
IV.MOCL.EHZ. 2021-03-14T11:48:03.92 0.6 undecidable manual S 246 17.0718 118 0 49
IV.MTRZ.HNN. 2021-03-14T11:48:03.28 1.0 undecidable manual P 8 27.4503 109 0.29 23
IV.RINC.HHZ. 2021-03-14T11:48:03.01 1.0 undecidable manual P 137 27.2505 109 0.05 24
IV.MPPT.EHZ. 2021-03-14T11:48:02.63 1.0 undecidable manual P 242 25.8519 110 -0.06 24
IV.RONT.HHZ. 2021-03-14T11:48:02.40 0.6 undecidable manual S 151 9.3795 134 0.64 43
IV.VISG.HHZ. 2021-03-14T11:48:02.73 0.6 undecidable manual S 19 14.2746 123 -0.34 46
IV.RUFI.EHZ. 2021-03-14T11:48:02.85 0.3 undecidable manual P 157 27.6501 108 -0.17 70
IV.LMD.HHZ. 2021-03-14T11:48:02.95 0.6 undecidable manual P 88 26.4513 109 0.15 47
IV.MOCL.EHZ. 2021-03-14T11:48:01.12 0.1 undecidable manual P 246 17.0718 118 0.05 98
IV.SEI.HHZ. 2021-03-14T11:48:00.50 0.3 undecidable manual S 223 1.998 168 0.03 75
IV.RONT.HHZ. 2021-03-14T11:48:00.03 0.3 undecidable manual P 151 9.3795 134 0.2 72
IV.VISG.HHZ. 2021-03-14T11:48:00.21 0.1 undecidable manual P 19 14.2746 123 -0.38 91
IV.SEI.HHZ. 2021-03-14T11:47:59.13 0.1 undecidable manual P 223 1.998 168 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RONT.HHN. ML:0.0 0.0066996665000000006 0.2208 AML other m 2021-03-14T11:48:02.92
IV.RONT.HHE. ML:0.0 0.0064347015 1.0592 AML other m 2021-03-14T11:48:03.57
IV.MOCL.EHN. ML:1.9 0.0007872041999999999 0.16 AML other m 2021-03-14T11:48:04.95
IV.MOCL.EHE. ML:2.1 0.0011858625 0.1152 AML other m 2021-03-14T11:48:04.24
IV.MPPT.EHN. ML:1.9 0.00045210214999999996 0.3968 AML other m 2021-03-14T11:48:01.77
IV.MPPT.EHE. ML:2.0 0.0005783152 0.1984 AML other m 2021-03-14T11:48:01.77
IV.VISG.HHN. ML:1.9 0.0008003928499999999 0.32 AML other m 2021-03-14T11:48:02.81
IV.VISG.HHE. ML:1.9 0.0008632556 0.2176 AML other m 2021-03-14T11:48:03.98
IV.RUFI.EHE. ML:2.0 0.0005841655500000001 0.32 AML other m 2021-03-14T11:48:02.43
IV.RUFI.EHN. ML:1.6 0.00021739349999999998 0.5376 AML other m 2021-03-14T11:48:02.99
IV.LMD.HHN. ML:1.9 0.0004348119 0.2432 AML other m 2021-03-14T11:48:06.56
IV.LMD.HHE. ML:1.8 0.00038767745 0.1408 AML other m 2021-03-14T11:48:02.40
IV.RINC.HHN. ML:1.9 0.00045053074999999997 0.3392 AML other m 2021-03-14T11:48:07.68
IV.RINC.HHE. ML:1.7 0.00025586505 0.3584 AML other m 2021-03-14T11:48:08.21
IV.BRIS.HHE. ML:2.1 0.00053731245 0.3456 AML other m 2021-03-14T11:48:10.42
IV.BRIS.HHN. ML:2.1 0.0005493882 0.3392 AML other m 2021-03-14T11:48:05.60
IV.SFI.EHE. ML:1.5 0.00010866206 0.32 AML other m 2021-03-14T11:48:09.98
IV.SFI.EHN. ML:1.6 0.000125343395 0.5632 AML other m 2021-03-14T11:48:16.83
IV.SFI.HNE. ML:1.6 0.00013952580000000002 0.3264 AML other m 2021-03-14T11:48:09.97
IV.SFI.HNN. ML:1.8 0.00019609785000000002 0.6208 AML other m 2021-03-14T11:48:16.50
IV.ASQU.HHN. ML:1.5 0.00010086483999999999 0.2944 AML other m 2021-03-14T11:48:13.32
IV.ASQU.HHE. ML:1.6 0.0001121714 0.224 AML other m 2021-03-14T11:48:08.44
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