Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.5 on date 02-06-2020 and time 00:51:55 (UTC) in region 6 km E Palazzuolo sul Senio (FI)

A magnitude ML 0.5 earthquake occured in region: 6 km E Palazzuolo sul Senio (FI), on

  • 02-06-2020 00:51:55 (UTC)
  • 02-06-2020 02:51:55 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.1380, 11.6200 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 6 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 14 1943 15871
Brisighella RA 15 7639 23510
Borgo Tossignano BO 16 3288 26798
Riolo Terme RA 18 5720 32518
Portico e San Benedetto FC 18 756 33274
Casalfiumanese BO 18 3438 36712
Firenzuola FI 19 4726 41438
Rocca San Casciano FC 20 1910 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 0.5 2020-06-02
00:51:55		 44.1375 11.6205 10 2020-11-19
12:36:50		 Bollettino Sismico Italiano INGV 80671341
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-06-02 00:51:55 ± 0.1
Latitude 44.1375 ± 0.0045
Longitude 11.6205 ± 0.0050
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 80671341

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 412
Semi-minor axis of confidence ellipse (meter) 356
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 350
Circular confidence region, given by single value of horizontal uncertainty (meter) 410.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 119
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.08633
Epicentral distance of station farthest from the epicenter (degree) 0.25091
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 80671341
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-07-01 08:38:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RINC.HHZ. 2020-06-02T00:52:06.10 0.3 undecidable manual S 182 27.8499 50 -0.09 72
IV.SEI.HHZ. 2020-06-02T00:52:04.57 0.3 undecidable manual S 246 22.8549 113 0.01 74
IV.RONT.HHZ. 2020-06-02T00:52:04.61 0.3 undecidable manual S 223 21.867 114 0.35 69
IV.BRIS.HHZ. 2020-06-02T00:52:02.47 0.3 undecidable manual S 50 15.0738 123 0.28 71
IV.VISG.HHZ. 2020-06-02T00:52:02.27 0.3 undecidable manual S 291 15.873 121 -0.14 73
IV.RINC.HHZ. 2020-06-02T00:52:01.98 0.6 undecidable manual P 182 27.8499 50 0.11 48
IV.RONT.HHZ. 2020-06-02T00:52:00.98 0.3 undecidable manual P 223 21.867 114 0.22 71
IV.LMD.HHZ. 2020-06-02T00:52:00.48 0.3 undecidable manual S 134 9.5793 135 -0.21 73
IV.SEI.HHZ. 2020-06-02T00:52:00.74 0.3 undecidable manual P 246 22.8549 113 -0.19 71
IV.VISG.HHZ. 2020-06-02T00:51:59.57 0.3 undecidable manual P 291 15.873 121 -0.12 73
IV.BRIS.HHZ. 2020-06-02T00:51:59.56 0.1 undecidable manual P 50 15.0738 123 0 100
IV.LMD.HHZ. 2020-06-02T00:51:58.54 0.3 undecidable manual P 134 9.5793 135 -0.15 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BRIS.HHE. ML:0.6 0.00004210743 0.12 AML other m 2020-06-02T00:52:02.68
IV.BRIS.HHN. ML:0.3 0.000021893565 0.1 AML other m 2020-06-02T00:52:02.60
IV.VISG.HHN. ML:0.5 0.00002789562 0.08 AML other m 2020-06-02T00:52:02.65
IV.VISG.HHE. ML:0.2 0.000016049465 0.1 AML other m 2020-06-02T00:52:02.91
IV.SEI.HHN. ML:0.8 0.00004056982 0.26 AML other m 2020-06-02T00:52:04.99
IV.SEI.HHE. ML:0.4 0.0000168928 0.22 AML other m 2020-06-02T00:52:05.73
IV.RONT.HHN. ML:0.7 0.0000350751 0.18 AML other m 2020-06-02T00:52:05.11
IV.RONT.HHE. ML:0.6 0.000026616679999999997 0.18 AML other m 2020-06-02T00:52:06.53
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