Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 06-03-2020 and time 06:34:44 (UTC) in region 6 km S Marradi (FI)

A magnitude ML 1.1 earthquake occured in region: 6 km S Marradi (FI), on

  • 06-03-2020 06:34:44 (UTC)
  • 06-03-2020 07:34:44 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.0250, 11.6140 at 10 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Marradi FI 6 3139 3139
San Godenzo FI 11 1167 4306
Palazzuolo sul Senio FI 11 1154 5460
Tredozio FC 12 1212 6672
Portico e San Benedetto FC 14 756 7428
Premilcuore FC 14 799 8227
Vicchio FI 16 8044 16271
Dicomano FI 16 5515 21786
Londa FI 19 1840 23626
Rocca San Casciano FC 19 1910 25536
Borgo San Lorenzo FI 20 18211 43747

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km SW of Faenza (58541 inhabitants)
37 Km S of Imola (69797 inhabitants)
40 Km NE of Firenze (382808 inhabitants)
41 Km SW of Forlì (117913 inhabitants)
44 Km E of Prato (191150 inhabitants)
46 Km NE of Scandicci (50609 inhabitants)
52 Km W of Cesena (96758 inhabitants)
57 Km SE of Bologna (386663 inhabitants)
57 Km E of Pistoia (90315 inhabitants)
64 Km SW of Ravenna (159116 inhabitants)
66 Km NW of Arezzo (99543 inhabitants)
76 Km W of Rimini (147750 inhabitants)
82 Km N of Siena (53903 inhabitants)
88 Km SE of Modena (184973 inhabitants)
90 Km S of Ferrara (133155 inhabitants)
91 Km E of Lucca (89046 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
Reviewed
Rev100 		ML 1.1 2020-03-06
06:34:44		 44.0252 11.6135 10 2020-03-06
06:51:07		 Sala Sismica INGV-Roma 77066481
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-06 06:34:44 ± 0.06
Latitude 44.0252 ± 0.0027
Longitude 11.6135 ± 0.0038
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 77066481

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 308
Semi-minor axis of confidence ellipse (meter) 186
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 56
Circular confidence region, given by single value of horizontal uncertainty (meter) 310.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 99
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.26080
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 77066481
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-06 06:51:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MTMR.HNZ. 2020-03-06T06:36:26.42 3.0 undecidable manual Sn 1.15 0
IV.MRB1.HNZ. 2020-03-06T06:36:19.63 3.0 undecidable manual Sn -1.58 0
GU.BLANC.HHZ. 2020-03-06T06:36:17.98 3.0 undecidable manual Sn 6.2 0
IV.IFIL.HHZ. 2020-03-06T06:36:00.50 3.0 undecidable manual Pn -2.02 0
IX.CSG3.HNZ.01 2020-03-06T06:35:53.46 3.0 undecidable manual Pg 11.48 0
CR.ZAG.BHZ. 2020-03-06T06:35:34.40 3.0 undecidable manual Pn -0.03 0
IV.MTMR.HNZ. 2020-03-06T06:35:33.09 3.0 undecidable manual Pn -4.64 0
IV.TEOL.HHZ. 2020-03-06T06:35:21.42 3.0 undecidable manual Sn -0.02 0
IV.APEC.HHZ. 2020-03-06T06:35:19.80 3.0 undecidable manual Sg 9.08 0
IV.LAV9.HNZ. 2020-03-06T06:35:17.10 3.0 undecidable manual Pn 1.22 0
IV.SBPO.HNZ. 2020-03-06T06:35:14.04 3.0 undecidable manual Sn 0 0
IV.MMO1.EHZ. 2020-03-06T06:35:13.83 3.0 undecidable manual Pg 6.59 0
IV.NDIM.HNZ. 2020-03-06T06:35:12.15 3.0 undecidable manual Sn 1.43 0
IV.MILN.HHZ. 2020-03-06T06:35:10.84 3.0 undecidable manual Pn 0.86 0
IV.EUCT.HNZ. 2020-03-06T06:35:06.89 3.0 positive manual Pn -1.23 0
IV.ARVD.HHZ. 2020-03-06T06:34:59.83 3.0 undecidable manual Pn -0.57 0
IV.ASQU.HHZ. 2020-03-06T06:34:55.28 0.3 undecidable manual S 151 28.9488 50 0.05 73
IV.NDIM.HHZ. 2020-03-06T06:34:55.74 3.0 negative manual P -0.11 0
IV.RUFI.EHZ. 2020-03-06T06:34:53.00 0.3 undecidable manual S 202 22.3554 114 -0.32 69
IV.VISG.HHZ. 2020-03-06T06:34:53.53 0.3 undecidable manual S 322 23.0547 114 -0.03 74
IV.SEI.HHZ. 2020-03-06T06:34:52.74 0.3 undecidable manual S 279 20.5683 116 -0.02 74
IV.RONT.HHZ. 2020-03-06T06:34:51.18 0.3 undecidable manual S 256 14.874 124 0.15 73
IV.RINC.HHZ. 2020-03-06T06:34:51.28 0.3 undecidable manual S 182 15.3735 123 0.09 74
IV.ASQU.HHZ. 2020-03-06T06:34:50.78 0.3 positive manual P 151 28.9488 50 -0.05 73
IV.VISG.HHZ. 2020-03-06T06:34:49.83 0.3 undecidable manual P 322 23.0547 114 -0.03 74
IV.SEI.HHZ. 2020-03-06T06:34:49.28 0.1 positive manual P 279 20.5683 116 -0.12 97
IV.LMD.HHE. 2020-03-06T06:34:49.51 0.3 undecidable manual S 52 9.4794 137 -0.09 74
IV.RUFI.EHZ. 2020-03-06T06:34:49.61 0.1 undecidable manual P 202 22.3554 114 -0.12 97
IV.RONT.HHZ. 2020-03-06T06:34:48.59 0.1 positive manual P 256 14.874 124 0.19 96
IV.RINC.HHZ. 2020-03-06T06:34:48.74 0.3 undecidable manual P 182 15.3735 123 0.24 71
IV.LMD.HHE. 2020-03-06T06:34:47.63 0.1 undecidable manual P 52 9.4794 137 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SEI.HHE. ML:0.9 0.000055279515 0.24 AML other m 2020-03-06T06:34:52.79
IV.SEI.HHN. ML:1.3 0.00014027479999999997 1.5808 AML other m 2020-03-06T06:34:53.28
IV.VISG.HHE. ML:1.0 0.00006151187000000001 0.9184 AML other m 2020-03-06T06:34:53.93
IV.VISG.HHN. ML:1.0 0.00005925803 0.0992 AML other m 2020-03-06T06:34:54.11
IV.ASQU.HHE. ML:1.2 0.00009186770999999999 0.64 AML other m 2020-03-06T06:34:55.72
IV.ASQU.HHN. ML:1.2 0.00008171327500000001 0.2784 AML other m 2020-03-06T06:34:55.71
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 not available