Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 28-01-2020 and time 02:02:34 (Italy) in region 6 km W Premilcuore (FC)

A magnitude ML 1.0 earthquake occured in region: 6 km W Premilcuore (FC), on

  • 28-01-2020 01:02:34 (UTC)
  • 28-01-2020 02:02:34 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.9950, 11.7040 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.

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
Premilcuore FC 6 799 799
Portico e San Benedetto FC 7 756 1555
Tredozio FC 10 1212 2767
San Godenzo FI 10 1167 3934
Marradi FI 12 3139 7073
Rocca San Casciano FC 13 1910 8983
Galeata FC 17 2516 11499
Santa Sofia FC 17 4136 15635
Palazzuolo sul Senio FI 18 1154 16789
Dicomano FI 18 5515 22304
Londa FI 19 1840 24144
Civitella di Romagna FC 19 3786 27930
Modigliana FC 19 4560 32490

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km SW of Faenza (58541 inhabitants)
37 Km SW of Forlì (117913 inhabitants)
40 Km S of Imola (69797 inhabitants)
44 Km NE of Firenze (382808 inhabitants)
46 Km W of Cesena (96758 inhabitants)
49 Km NE of Scandicci (50609 inhabitants)
50 Km E of Prato (191150 inhabitants)
60 Km N of Arezzo (99543 inhabitants)
62 Km SW of Ravenna (159116 inhabitants)
63 Km SE of Bologna (386663 inhabitants)
63 Km E of Pistoia (90315 inhabitants)
69 Km W of Rimini (147750 inhabitants)
81 Km NE of Siena (53903 inhabitants)
94 Km S of Ferrara (133155 inhabitants)
95 Km SE of Modena (184973 inhabitants)
97 Km W of Pesaro (94582 inhabitants)
98 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 1.0 2020-01-28
01:02:34		 43.9952 11.7038 7 2020-07-18
21:08:19		 Bollettino Sismico Italiano INGV 76403641
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-28 01:02:34 ± 0.18
Latitude 43.9952 ± 0.0036
Longitude 11.7038 ± 0.0063
Depth (km) 7 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 76403641

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 500
Semi-minor axis of confidence ellipse (meter) 85
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 98
Circular confidence region, given by single value of horizontal uncertainty (meter) 500.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 120
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 14
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) 0.23382
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.4
Num. used stations 6
Type of magnitude ML
Reference to an origin 76403641
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-02-12 17:08:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.BRIS.HNZ. 2020-01-28T01:02:44.60 0.6 undecidable manual S 11 25.9518 106 0.77 40
IV.RUFI.EHZ. 2020-01-28T01:02:42.60 0.6 undecidable manual S 222 23.3544 107 -0.37 46
IV.RONT.HHZ. 2020-01-28T01:02:42.40 0.3 undecidable manual S 270 21.6672 108 0 74
IV.ASQU.HHZ. 2020-01-28T01:02:42.90 0.3 undecidable manual S 163 23.0547 107 0.03 74
IV.RINC.HHZ. 2020-01-28T01:02:40.30 0.1 undecidable manual S 213 14.3745 117 0.24 95
IV.SFI.HNZ. 2020-01-28T01:02:40.10 1.0 undecidable manual S 131 15.1737 115 -0.23 24
IV.ATPC.HHZ. 2020-01-28T01:02:40.08 3.0 undecidable manual P 0
IV.CPGN.EHZ. 2020-01-28T01:02:40.97 3.0 undecidable manual P 0
IV.RUFI.EHZ. 2020-01-28T01:02:39.25 0.1 undecidable manual P 222 23.3544 107 -0.14 96
IV.ASQU.HHZ. 2020-01-28T01:02:39.27 0.1 undecidable manual P 163 23.0547 107 -0.06 97
IV.RONT.HHZ. 2020-01-28T01:02:39.10 0.3 negative manual P 270 21.6672 108 0.04 98
IV.BRIS.HNZ. 2020-01-28T01:02:39.62 0.3 undecidable manual P 11 25.9518 106 -0.26 70
IV.LMD.HHZ. 2020-01-28T01:02:38.30 0.1 undecidable manual S 2 9.0798 128 -0.23 72
IV.SFI.HNZ. 2020-01-28T01:02:37.94 0.1 undecidable manual P 131 15.1737 115 0.08 98
IV.RINC.HHZ. 2020-01-28T01:02:37.85 0.1 undecidable manual P 213 14.3745 117 0.14 97
IV.LMD.HHZ. 2020-01-28T01:02:36.77 0.1 undecidable manual P 2 9.0798 128 -0.05 100
IV.FIR.HHZ. 2020-01-28T01:02:34.88 3.0 undecidable manual P 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LMD.HHE. ML:0.9 0.00014132737 0.1 AML other m 2020-01-28T01:02:38.54
IV.LMD.HHN. ML:1.0 0.000174423255 0.16 AML other m 2020-01-28T01:02:38.53
IV.RINC.HHE. ML:0.4 0.000022896235000000002 0.2 AML other m 2020-01-28T01:02:41.97
IV.RINC.HHN. ML:0.5 0.000033585958499999996 0.38 AML other m 2020-01-28T01:02:41.61
IV.RONT.HHN. ML:1.3 0.0001308908 0.1 AML other m 2020-01-28T01:02:43.45
IV.RONT.HHE. ML:1.3 0.00015243435 0.1 AML other m 2020-01-28T01:02:43.28
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