Earthquake with magnitude of ML 1.5 on date 09-03-2020 and time 04:43:36 (Italy) in region 7 km SE Firenzuola (FI)

A magnitude ML 1.5 earthquake occured in region: 7 km SE Firenzuola (FI), on

  • 09-03-2020 03:43:36 (UTC)
  • 09-03-2020 04:43:36 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.0630, 11.4310 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 7 4726 4726
Palazzuolo sul Senio FI 11 1154 5880
Borgo San Lorenzo FI 12 18211 24091
Scarperia e San Piero FI 14 12217 36308
Vicchio FI 15 8044 44352
Marradi FI 15 3139 47491
Barberino di Mugello FI 17 10836 58327
Castel del Rio BO 18 1246 59573
Monghidoro BO 20 3749 63322

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km NE of Prato (191150 inhabitants)
35 Km NE of Firenze (382808 inhabitants)
39 Km NE of Scandicci (50609 inhabitants)
40 Km SW of Imola (69797 inhabitants)
43 Km E of Pistoia (90315 inhabitants)
44 Km SW of Faenza (58541 inhabitants)
49 Km S of Bologna (386663 inhabitants)
52 Km W of Forlì (117913 inhabitants)
65 Km W of Cesena (96758 inhabitants)
73 Km SW of Ravenna (159116 inhabitants)
76 Km NW of Arezzo (99543 inhabitants)
76 Km SE of Modena (184973 inhabitants)
78 Km E of Lucca (89046 inhabitants)
83 Km N of Siena (53903 inhabitants)
87 Km S of Ferrara (133155 inhabitants)
91 Km W of Rimini (147750 inhabitants)
91 Km E of Pisa (89158 inhabitants)
91 Km SE of Carpi (70699 inhabitants)
95 Km SE of Reggio nell'Emilia (171345 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
Bulletin
Rev1000
ML 1.5 2020-03-09
03:43:36
44.0628 11.4312 10 2020-07-18
21:08:26
Bollettino Sismico Italiano INGV 77218481
Reviewed
Rev100
ML 1.5 2020-03-09
03:43:36
44.0648 11.4463 10 2020-03-09
03:52:14
Sala Sismica INGV-Roma 77143131
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-09 03:43:36 ± 0.07
Latitude 44.0628 ± 0.0045
Longitude 11.4312 ± 0.0063
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 77218481

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 511
Semi-minor axis of confidence ellipse (meter) 464
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 297
Circular confidence region, given by single value of horizontal uncertainty (meter) 510.0
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 17
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.37052
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.4
Num. used stations 8
Type of magnitude ML
Reference to an origin 77218481
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-03-26 08:45:52

ML:1.5

Field Value
Value 1.5
Uncertainty 0.4
Num. used stations 8
Type of magnitude ML
Reference to an origin 77143131
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-09 03:52:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CRMI.HHZ. 2020-03-09T03:43:52.18 3.0 undecidable manual S 0.04 0
IV.SFI.HNN. 2020-03-09T03:43:49.73 0.1 undecidable manual S 118 37.5291 50 0.26 91
IV.RUFI.EHZ. 2020-03-09T03:43:46.12 0.1 undecidable manual S 166 25.752 50 -0.19 95
IV.SFI.HNN. 2020-03-09T03:43:44.01 0.1 undecidable manual P 118 37.5291 50 -0.09 94
IV.LMD.HHZ. 2020-03-09T03:43:44.81 0.3 undecidable manual S 86 22.0668 115 -0.38 68
IV.ASQU.HHE. 2020-03-09T03:43:44.74 0.1 undecidable manual P 136 41.1255 50 0.09 94
IV.BRIS.HHZ. 2020-03-09T03:43:43.73 0.1 undecidable manual P 56 32.1456 50 0.46 88
IV.VISG.HHZ. 2020-03-09T03:43:42.68 0.1 undecidable manual S 1 13.9749 126 -0.08 99
IV.RUFI.EHZ. 2020-03-09T03:43:42.09 0.1 undecidable manual P 166 25.752 50 -0.19 95
IV.MPPT.EHN. 2020-03-09T03:43:42.68 0.1 undecidable manual P 247 29.5482 50 -0.2 94
IV.RONT.HHZ. 2020-03-09T03:43:41.42 0.1 undecidable manual S 179 7.6812 143 0.25 96
IV.RINC.HHN. 2020-03-09T03:43:41.86 0.3 undecidable manual P 144 24.0537 113 -0.14 72
IV.LMD.HHZ. 2020-03-09T03:43:41.47 0.1 undecidable manual P 86 22.0668 115 -0.16 96
IV.VISG.HHZ. 2020-03-09T03:43:40.27 0.1 positive manual P 1 13.9749 126 0.04 99
IV.SEI.HHZ. 2020-03-09T03:43:40.73 0.1 undecidable manual S 261 5.8941 150 -0.09 100
IV.RONT.HHZ. 2020-03-09T03:43:39.55 0.1 positive manual P 179 7.6812 143 0.24 97
IV.SEI.HHZ. 2020-03-09T03:43:39.19 0.1 positive manual P 261 5.8941 150 0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SEI.HHN. ML:1.8 0.0011275 0.26 AML other m 2020-03-09T03:43:41.05
IV.SEI.HHE. ML:1.4 0.0004435 0.24 AML other m 2020-03-09T03:43:41.30
IV.RONT.HHE. ML:1.4 0.000343 0.2 AML other m 2020-03-09T03:43:42.00
IV.RONT.HHN. ML:1.4 0.000389 0.26 AML other m 2020-03-09T03:43:42.56
IV.VISG.HHE. ML:0.9 0.00007620000000000001 0.48 AML other m 2020-03-09T03:43:42.98
IV.VISG.HHN. ML:0.9 0.00008235000000000001 1.28 AML other m 2020-03-09T03:43:43.92
IV.CRMI.HHN. ML:1.9 0.00020649999999999998 0.14 AML other m 2020-03-09T03:43:54.69
IV.CRMI.HHE. ML:2.0 0.00028500000000000004 0.14 AML other m 2020-03-09T03:43:54.69
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