Earthquake with magnitude of ML 1.7 on date 29-01-2019 and time 14:31:56 (UTC) in region 6 km SE Marradi (FI)

A magnitude ML 1.7 earthquake occured in region: 6 km SE Marradi (FI), on

  • 29-01-2019 14:31:56 (UTC)
  • 29-01-2019 15:31:56 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.03, 11.65 at 7 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
Marradi FI 6 3139 3139
Tredozio FC 10 1212 4351
Portico e San Benedetto FC 11 756 5107
San Godenzo FI 11 1167 6274
Premilcuore FC 12 799 7073
Palazzuolo sul Senio FI 12 1154 8227
Rocca San Casciano FC 16 1910 10137
Vicchio FI 18 8044 18181
Dicomano FI 18 5515 23696
Modigliana FC 19 4560 28256
Londa FI 20 1840 30096

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km SW of Faenza (58541 inhabitants)
37 Km S of Imola (69797 inhabitants)
38 Km SW of Forlì (117913 inhabitants)
42 Km NE of Firenze (382808 inhabitants)
47 Km E of Prato (191150 inhabitants)
48 Km NE of Scandicci (50609 inhabitants)
49 Km W of Cesena (96758 inhabitants)
57 Km SE of Bologna (386663 inhabitants)
59 Km E of Pistoia (90315 inhabitants)
62 Km SW of Ravenna (159116 inhabitants)
65 Km NW of Arezzo (99543 inhabitants)
74 Km W of Rimini (147750 inhabitants)
83 Km NE of Siena (53903 inhabitants)
90 Km SE of Modena (184973 inhabitants)
90 Km S of Ferrara (133155 inhabitants)
94 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
Rev 1000 ML 1.7 2019-01-29
14:31:56
44.03 11.65 7 2019-08-22
08:24:52
Bollettino Sismico Italiano INGV 66496941
Rev 100 ML 1.8 2019-01-29
14:31:56
44.03 11.65 7 2019-01-29
14:38:43
Sala Sismica INGV-Roma 65050891
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-01-29 14:31:56 ± 0.08
Latitude 44.03 ± 0.00
Longitude 11.65 ± 0.01
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 66496941

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 448
Semi-minor axis of confidence ellipse (meter) 403
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 172
Circular confidence region, given by single value of horizontal uncertainty (meter) 450
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 88
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.06565
Epicentral distance of station farthest from the epicenter (degree) 0.58096
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 13
Type of magnitude ML
Reference to an origin 66496941
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-03-13 07:16:42

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 65050891
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-01-29 14:38:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.OSSC.HHZ. 2019-01-29T14:32:17.30 0.3 undecidable manual S 210 0.581 50 0.18 67
IV.CRMI.HNN. 2019-01-29T14:32:16.22 0.3 undecidable manual S 244 0.5333 50 0.52 63
IV.MTCR.EHZ. 2019-01-29T14:32:13.49 0.1 undecidable manual S 270 0.4623 50 -0.11 93
IV.MPPT.EHZ. 2019-01-29T14:32:11.83 0.1 undecidable manual S 260 0.4056 50 -0.09 94
IV.FNVD.HHZ. 2019-01-29T14:32:11.54 0.3 undecidable manual S 291 0.4002 50 -0.23 69
IV.MOCL.EHZ. 2019-01-29T14:32:09.49 0.1 undecidable manual S 266 0.3354 100 -0.14 95
IV.OSSC.HHZ. 2019-01-29T14:32:08.72 0.1 positive manual P 210 0.581 50 0.31 87
IV.CRMI.HNN. 2019-01-29T14:32:07.79 0.3 undecidable manual P 244 0.5333 50 0.21 67
IV.ASQU.HHZ. 2019-01-29T14:32:06.60 0.1 undecidable manual S 156 0.2536 104 0.06 98
IV.MTCR.EHZ. 2019-01-29T14:32:06.01 0.1 negative manual P 270 0.4623 50 -0.36 88
IV.SEI.HHZ. 2019-01-29T14:32:05.11 0.1 undecidable manual S 277 0.2086 106 0.25 95
IV.RUFI.EHZ. 2019-01-29T14:32:05.36 0.1 undecidable manual S 207 0.214 106 0.28 94
IV.BRIS.HHZ. 2019-01-29T14:32:05.82 0.1 undecidable manual S 24 0.214 106 0.73 82
IV.MPPT.EHZ. 2019-01-29T14:32:05.04 0.1 undecidable manual P 260 0.4056 50 -0.36 89
IV.FNVD.HHZ. 2019-01-29T14:32:04.94 0.3 undecidable manual P 291 0.4002 50 -0.37 67
IV.MTRZ.HNN. 2019-01-29T14:32:04.72 0.3 undecidable manual P 331 0.3256 101 0.85 57
IV.SFI.EHZ. 2019-01-29T14:32:04.27 0.1 undecidable manual S 130 0.1898 108 0.08 99
IV.MOCL.EHZ. 2019-01-29T14:32:03.82 0.1 positive manual P 266 0.3354 100 -0.26 92
IV.ASQU.HHZ. 2019-01-29T14:32:02.06 0.1 positive manual P 156 0.2536 104 -0.24 94
IV.SEI.HHZ. 2019-01-29T14:32:01.33 0.1 positive manual P 277 0.2086 106 0 100
IV.RUFI.EHZ. 2019-01-29T14:32:01.45 0.1 positive manual P 207 0.214 106 0 100
IV.BRIS.HHZ. 2019-01-29T14:32:01.61 0.1 positive manual P 24 0.214 106 0.15 97
IV.SFI.EHZ. 2019-01-29T14:32:00.86 0.1 negative manual P 130 0.1898 108 -0.08 99
IV.LMD.HHZ. 2019-01-29T14:31:59.49 0.1 undecidable manual S 42 0.0657 133 -0.49 93
IV.LMD.HHZ. 2019-01-29T14:31:58.18 0.1 positive manual P 42 0.0657 133 -0.33 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LMD.HHE. ML:2.1 0.002447366 0.0832 AML other m 2019-01-29T14:31:59.67
IV.LMD.HHN. ML:2.2 0.0032922155 0.1408 AML other m 2019-01-29T14:31:59.57
IV.SFI.EHN. ML:1.7 0.0003423922 0.16 AML other m 2019-01-29T14:32:04.83
IV.SFI.HNE. ML:1.4 0.00020274795 0.1664 AML other m 2019-01-29T14:32:04.83
IV.SFI.EHE. ML:1.5 0.00021323095 0.16 AML other m 2019-01-29T14:32:04.83
IV.SFI.HNN. ML:1.7 0.0003490713 0.16 AML other m 2019-01-29T14:32:04.82
IV.SEI.HHN. ML:2.1 0.0009279223 0.3392 AML other m 2019-01-29T14:32:05.80
IV.RUFI.EHE. ML:0.9 5.6044515E-5 0.16 AML other m 2019-01-29T14:32:06.51
IV.RUFI.EHN. ML:1 7.094056E-5 0.16 AML other m 2019-01-29T14:32:06.54
IV.BRIS.HNE. ML:1.9 0.00049046725 0.2368 AML other m 2019-01-29T14:32:06.04
IV.BRIS.HHN. ML:2 0.00074168125 0.3008 AML other m 2019-01-29T14:32:06.63
IV.BRIS.HHE. ML:1.9 0.00049459785 0.2176 AML other m 2019-01-29T14:32:06.04
IV.ASQU.HHE. ML:1.8 0.0003415088 0.2176 AML other m 2019-01-29T14:32:06.79
IV.ASQU.HHN. ML:1.6 0.00022216195 0.1984 AML other m 2019-01-29T14:32:06.96
IV.MOCL.EHN. ML:1.9 0.00032514395 0.16 AML other m 2019-01-29T14:32:10.17
IV.MOCL.EHE. ML:1.7 0.00017582675 0.16 AML other m 2019-01-29T14:32:09.93
IV.MTCR.EHN. ML:1.4 7.228461E-5 0.3456 AML other m 2019-01-29T14:32:14.18
IV.MTCR.EHE. ML:1.4 6.4129005E-5 0.4608 AML other m 2019-01-29T14:32:14.32
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