Earthquake with magnitude of ML 1.0 on date 29-04-2020 and time 09:41:20 (Italy) in region 6 km SW Palazzuolo sul Senio (FI)

A magnitude ML 1.0 earthquake occured in region: 6 km SW Palazzuolo sul Senio (FI), on

  • 29-04-2020 07:41:20 (UTC)
  • 29-04-2020 09:41:20 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.0640, 11.5150 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Palazzuolo sul Senio FI 6 1154 1154
Marradi FI 8 3139 4293
Firenzuola FI 12 4726 9019
Vicchio FI 15 8044 17063
Borgo San Lorenzo FI 16 18211 35274
Castel del Rio BO 17 1246 36520
San Godenzo FI 17 1167 37687
Tredozio FC 18 1212 38899
Scarperia e San Piero FI 19 12217 51116
Dicomano FI 19 5515 56631
Casola Valsenio RA 20 2617 59248

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km SW of Imola (69797 inhabitants)
38 Km SW of Faenza (58541 inhabitants)
39 Km NE of Firenze (382808 inhabitants)
39 Km NE of Prato (191150 inhabitants)
43 Km NE of Scandicci (50609 inhabitants)
46 Km W of Forlì (117913 inhabitants)
50 Km S of Bologna (386663 inhabitants)
50 Km E of Pistoia (90315 inhabitants)
59 Km W of Cesena (96758 inhabitants)
67 Km SW of Ravenna (159116 inhabitants)
73 Km NW of Arezzo (99543 inhabitants)
80 Km SE of Modena (184973 inhabitants)
84 Km W of Rimini (147750 inhabitants)
84 Km N of Siena (53903 inhabitants)
85 Km E of Lucca (89046 inhabitants)
86 Km S of Ferrara (133155 inhabitants)
94 Km SE of Carpi (70699 inhabitants)
97 Km E of Pisa (89158 inhabitants)
100 Km SE of Reggio nell'Emilia (171345 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 1.0 2020-04-29
07:41:20
44.0645 11.5152 10 2020-04-29
07:48:38
Sala Sismica INGV-Roma 78662121
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-29 07:41:20 ± 0.09
Latitude 44.0645 ± 0.0036
Longitude 11.5152 ± 0.0063
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 78662121

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 415
Semi-minor axis of confidence ellipse (meter) 387
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 265
Circular confidence region, given by single value of horizontal uncertainty (meter) 420.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 73
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.33275
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.4
Num. used stations 14
Type of magnitude ML
Reference to an origin 78662121
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-29 07:48:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ATVO.HHZ. 2020-04-29T07:41:52.07 3.0 undecidable manual S -0.06 0
IV.ASQU.HHZ. 2020-04-29T07:41:33.44 0.1 undecidable manual S 143 36.9297 50 -0.03 95
IV.BRSN.HNZ. 2020-04-29T07:41:31.00 3.0 undecidable manual Pg 0.51 0
IV.RINC.HHZ. 2020-04-29T07:41:29.04 0.1 undecidable manual S 160 21.0678 114 0.22 95
IV.RUFI.EHZ. 2020-04-29T07:41:29.67 0.3 undecidable manual S 181 25.1526 111 -0.45 67
IV.ASQU.HHZ. 2020-04-29T07:41:27.98 0.6 negative manual P 143 36.9297 50 -0.14 47
IV.LMD.HHZ. 2020-04-29T07:41:26.97 0.3 undecidable manual S 85 15.3735 122 -0.1 72
IV.VISG.HHZ. 2020-04-29T07:41:26.85 0.3 undecidable manual S 335 15.2736 122 -0.18 72
IV.BRIS.HHZ. 2020-04-29T07:41:26.88 0.3 undecidable manual P 48 26.751 110 0.39 68
IV.SEI.HHZ. 2020-04-29T07:41:26.15 0.1 undecidable manual S 265 12.4764 127 -0.1 99
IV.RUFI.EHZ. 2020-04-29T07:41:25.93 0.1 undecidable manual P 181 25.1526 111 -0.25 94
IV.RONT.HHZ. 2020-04-29T07:41:25.96 0.1 undecidable manual S 220 10.2786 133 0.32 95
IV.RINC.HHZ. 2020-04-29T07:41:25.46 0.1 positive manual P 160 21.0678 114 0.03 99
IV.LMD.HHZ. 2020-04-29T07:41:24.42 0.6 negative manual P 85 15.3735 122 0 50
IV.VISG.HHZ. 2020-04-29T07:41:24.39 0.1 undecidable manual P 335 15.2736 122 -0.01 100
IV.SEI.HHZ. 2020-04-29T07:41:23.96 0.1 negative manual P 265 12.4764 127 0.01 100
IV.RONT.HHZ. 2020-04-29T07:41:23.82 0.3 positive manual P 220 10.2786 133 0.22 72
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RONT.HHE. ML:1.7 0.00071102765 0.2432 AML other m 2020-04-29T07:41:27.63
IV.RONT.HHN. ML:1.9 0.0011111148 0.096 AML other m 2020-04-29T07:41:26.27
IV.SEI.HHE. ML:1.5 0.0003307153 0.2176 AML other m 2020-04-29T07:41:26.74
IV.SEI.HHN. ML:2.0 0.00100226565 0.2176 AML other m 2020-04-29T07:41:26.41
IV.VISG.HHE. ML:1.0 0.00008389185999999999 0.2176 AML other m 2020-04-29T07:41:27.45
IV.VISG.HHN. ML:0.9 0.00007889642999999999 0.2176 AML other m 2020-04-29T07:41:28.14
IV.LMD.HHE. ML:0.6 0.00004099342 0.1792 AML other m 2020-04-29T07:41:29.64
IV.LMD.HHN. ML:0.8 0.00006162558 0.0832 AML other m 2020-04-29T07:41:28.22
IV.RINC.HHE. ML:1.2 0.000125546755 0.2176 AML other m 2020-04-29T07:41:29.10
IV.RINC.HHN. ML:1.0 0.00006280018 0.3456 AML other m 2020-04-29T07:41:29.54
IV.BRIS.HHE. ML:0.9 0.00004316346535000001 0.4416 AML other m 2020-04-29T07:41:38.75
IV.BRIS.HHN. ML:0.9 0.000042377449999999995 0.3392 AML other m 2020-04-29T07:41:35.45
IV.ASQU.HHE. ML:0.7 0.00002080288 0.224 AML other m 2020-04-29T07:41:33.61
IV.ASQU.HHN. ML:0.8 0.0000236127885 0.2432 AML other m 2020-04-29T07:41:33.72
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