Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 09-06-2020 and time 07:05:49 (UTC) in region 6 km E Palazzuolo sul Senio (FI)

A magnitude ML 1.6 earthquake occured in region: 6 km E Palazzuolo sul Senio (FI), on

  • 09-06-2020 07:05:49 (UTC)
  • 09-06-2020 09:05:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.1360, 11.6230 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.

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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 7 1154 1154
Marradi FI 7 3139 4293
Casola Valsenio RA 10 2617 6910
Tredozio FC 12 1212 8122
Castel del Rio BO 13 1246 9368
Modigliana FC 14 4560 13928
Fontanelice BO 15 1943 15871
Brisighella RA 15 7639 23510
Borgo Tossignano BO 16 3288 26798
Portico e San Benedetto FC 18 756 27554
Riolo Terme RA 18 5720 33274
Casalfiumanese BO 18 3438 36712
Rocca San Casciano FC 19 1910 38622
Firenzuola FI 20 4726 43348

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km SW of Imola (69797 inhabitants)
27 Km SW of Faenza (58541 inhabitants)
35 Km W of Forlì (117913 inhabitants)
46 Km SE of Bologna (386663 inhabitants)
50 Km W of Cesena (96758 inhabitants)
50 Km NE of Firenze (382808 inhabitants)
51 Km NE of Prato (191150 inhabitants)
55 Km NE of Scandicci (50609 inhabitants)
56 Km SW of Ravenna (159116 inhabitants)
61 Km E of Pistoia (90315 inhabitants)
76 Km W of Rimini (147750 inhabitants)
77 Km N of Arezzo (99543 inhabitants)
78 Km S of Ferrara (133155 inhabitants)
79 Km SE of Modena (184973 inhabitants)
93 Km SE of Carpi (70699 inhabitants)
94 Km N of Siena (53903 inhabitants)
95 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
Bulletin
Rev1000 		ML 1.6 2020-06-09
07:05:49		 44.1358 11.6228 10 2020-11-19
12:36:49		 Bollettino Sismico Italiano INGV 80404731
Reviewed
Rev100 		ML 1.6 2020-06-09
07:05:49		 44.1383 11.6232 10 2020-06-09
07:12:19		 Sala Sismica INGV-Roma 80021911
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-06-09 07:05:49 ± 0.09
Latitude 44.1358 ± 0.0054
Longitude 11.6228 ± 0.0063
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 80404731

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 550
Semi-minor axis of confidence ellipse (meter) 428
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 348
Circular confidence region, given by single value of horizontal uncertainty (meter) 550.0
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 18
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.35973
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 80021911
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-06-09 07:12:19

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 80404731
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-06-22 13:26:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FERS.HNZ. 2020-06-09T07:06:14.28 3.0 undecidable manual S -0.01 0
IV.RUFI.EHZ. 2020-06-09T07:06:01.66 0.6 undecidable manual S 195 34.2435 50 0.16 47
IV.SFI.EHZ. 2020-06-09T07:06:00.91 0.3 undecidable manual S 145 31.2465 50 0.21 70
IV.SEI.HHZ. 2020-06-09T07:05:58.40 0.1 undecidable manual S 247 22.9548 114 0.02 97
IV.RONT.HHZ. 2020-06-09T07:05:58.57 0.3 undecidable manual S 224 21.867 115 0.52 64
IV.ASQU.HHZ. 2020-06-09T07:05:57.32 0.1 undecidable manual P 160 39.9267 50 -0.06 93
IV.BRIS.HHZ. 2020-06-09T07:05:56.10 0.1 undecidable manual S 49 15.0738 124 0.1 96
IV.RUFI.EHZ. 2020-06-09T07:05:56.32 0.1 undecidable manual P 195 34.2435 50 -0.19 91
IV.VISG.HHZ. 2020-06-09T07:05:55.90 0.3 undecidable manual S 292 16.0728 122 -0.39 69
IV.MTRZ.HNZ. 2020-06-09T07:05:55.77 0.1 undecidable manual P 321 25.1526 50 0.67 83
IV.IMOL.HNZ. 2020-06-09T07:05:55.19 3.0 undecidable manual P -0.14 0
IV.SFI.EHZ. 2020-06-09T07:05:55.83 0.1 undecidable manual P 145 31.2465 50 -0.21 91
IV.RONT.HHZ. 2020-06-09T07:05:54.55 0.1 undecidable manual P 224 21.867 115 0.03 97
IV.LMD.HHZ. 2020-06-09T07:05:54.41 0.1 undecidable manual S 134 9.3795 137 -0.06 99
IV.SEI.HHZ. 2020-06-09T07:05:54.49 0.1 undecidable manual P 247 22.9548 114 -0.22 94
IV.VISG.HHZ. 2020-06-09T07:05:53.29 0.1 undecidable manual P 292 16.0728 122 -0.21 95
IV.BRIS.HHZ. 2020-06-09T07:05:53.27 0.1 positive manual P 49 15.0738 124 -0.06 98
IV.LMD.HHZ. 2020-06-09T07:05:52.40 0.1 positive manual P 134 9.3795 137 -0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LMD.HHE. ML:1.7 0.0006725000000000001 0.48 AML other m 2020-06-09T07:05:54.74
IV.LMD.HHN. ML:1.5 0.0004305 0.64 AML other m 2020-06-09T07:05:54.57
IV.BRIS.HHE. ML:2.0 0.0010945 0.34 AML other m 2020-06-09T07:05:56.41
IV.BRIS.HHN. ML:2.0 0.000905 0.22 AML other m 2020-06-09T07:05:56.26
IV.VISG.HHE. ML:1.4 0.00020150000000000002 1.16 AML other m 2020-06-09T07:05:56.95
IV.VISG.HHN. ML:1.4 0.000221 1.28 AML other m 2020-06-09T07:05:58.05
IV.SEI.HHN. ML:2.0 0.0006165000000000001 1.7 AML other m 2020-06-09T07:05:58.88
IV.SEI.HHE. ML:1.6 0.0002855 0.44 AML other m 2020-06-09T07:05:59.38
IV.RONT.HHE. ML:1.9 0.0005309999999999999 0.8 AML other m 2020-06-09T07:06:00.36
IV.SFI.EHE. ML:1.3 0.000097 0.86 AML other m 2020-06-09T07:06:01.71
IV.SFI.EHN. ML:1.3 0.00008535000000000001 0.12 AML other m 2020-06-09T07:06:01.74
IV.RONT.HHN. ML:1.9 0.0005795 0.2 AML other m 2020-06-09T07:06:01.94
IV.RUFI.EHE. ML:1.1 0.0000534 1.68 AML other m 2020-06-09T07:06:02.13
IV.RUFI.EHN. ML:1.1 0.0000538425 0.5 AML other m 2020-06-09T07:06:03.40
IV.ASQU.HHN. ML:1.4 0.00008575 0.18 AML other m 2020-06-09T07:06:04.65
IV.ASQU.HHE. ML:1.4 0.00009279999999999999 1.02 AML other m 2020-06-09T07:06:04.40
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