Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 03-07-2020 and time 06:57:09 (Italy) in region 1 km W Premilcuore (FC)

A magnitude ML 1.0 earthquake occured in region: 1 km W Premilcuore (FC), on

  • 03-07-2020 04:57:09 (UTC)
  • 03-07-2020 06:57:09 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.9770, 11.7680 at 8 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.

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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
Premilcuore FC 1 799 799
Portico e San Benedetto FC 6 756 1555
Rocca San Casciano FC 11 1910 3465
Tredozio FC 12 1212 4677
Santa Sofia FC 12 4136 8813
Galeata FC 12 2516 11329
San Godenzo FI 13 1167 12496
Civitella di Romagna FC 14 3786 16282
Marradi FI 17 3139 19421
Dovadola FC 19 1653 21074

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km SW of Forlì (117913 inhabitants)
36 Km S of Faenza (58541 inhabitants)
42 Km W of Cesena (96758 inhabitants)
42 Km S of Imola (69797 inhabitants)
47 Km E of Firenze (382808 inhabitants)
53 Km E of Scandicci (50609 inhabitants)
55 Km E of Prato (191150 inhabitants)
57 Km N of Arezzo (99543 inhabitants)
60 Km SW of Ravenna (159116 inhabitants)
65 Km W of Rimini (147750 inhabitants)
67 Km SE of Bologna (386663 inhabitants)
68 Km E of Pistoia (90315 inhabitants)
81 Km NE of Siena (53903 inhabitants)
92 Km W of Pesaro (94582 inhabitants)
96 Km S of Ferrara (133155 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 2020-07-03
04:57:09		 43.9773 11.7683 8 2020-07-03
05:09:28		 Sala Sismica INGV-Roma 80719681
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-03 04:57:09 ± 0.1
Latitude 43.9773 ± 0.0018
Longitude 11.7683 ± 0.0037
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 80719681

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 263
Semi-minor axis of confidence ellipse (meter) 162
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 248
Circular confidence region, given by single value of horizontal uncertainty (meter) 260.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 166
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.08
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.24192
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 13
Type of magnitude ML
Reference to an origin 80719681
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-03 05:09:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MPNC.HHZ. 2020-07-03T04:58:46.85 3.0 undecidable manual Pg 14.38 0
GU.MGRO.HHZ. 2020-07-03T04:58:32.77 3.0 undecidable manual Sn 0.69 0
CH.MUGIO.HHZ. 2020-07-03T04:58:28.87 3.0 undecidable manual Sg 8.19 0
IV.SPS2.HHZ. 2020-07-03T04:58:24.62 3.0 positive manual Pn 2.5 0
XK.GIZZ.HHZ. 2020-07-03T04:58:17.51 3.0 negative manual Pn -7.77 0
GU.RNCA.HHZ. 2020-07-03T04:58:12.18 3.0 undecidable manual Sn -0.01 0
IV.MCRV.HHZ. 2020-07-03T04:58:06.34 3.0 undecidable manual Pg 7.79 0
IV.TOLF.HHZ. 2020-07-03T04:57:57.80 3.0 undecidable manual Sn -6.88 0
CR.STON.BHZ. 2020-07-03T04:57:56.00 3.0 undecidable manual Pn -2.01 0
IV.MCIV.CHZ. 2020-07-03T04:57:51.02 3.0 undecidable manual Sg 0.28 0
IV.EUCT.HNZ. 2020-07-03T04:57:41.94 3.0 undecidable manual Pg 1.95 0
IV.ROSPO.HHZ. 2020-07-03T04:57:39.50 3.0 negative manual Pn -1.34 0
IV.PLMA.HHZ. 2020-07-03T04:57:38.47 3.0 undecidable manual Pg 6.58 0
IV.MBAL.EHZ. 2020-07-03T04:57:29.05 3.0 positive manual Pg -0.91 0
IV.NDIM.HHZ. 2020-07-03T04:57:19.67 3.0 positive manual P -4.13 0
IV.ASQU.HHZ. 2020-07-03T04:57:16.87 0.6 undecidable manual S 175 20.0688 112 -0.07 49
IV.RONT.HHZ. 2020-07-03T04:57:15.06 0.6 undecidable manual P 274 26.8509 107 0.01 49
IV.RINC.HHZ. 2020-07-03T04:57:15.80 0.6 undecidable manual S 232 16.3725 116 0.05 49
IV.RUFI.EHZ. 2020-07-03T04:57:14.73 0.1 positive manual P 233 25.8519 107 -0.12 95
IV.LMD.HHE. 2020-07-03T04:57:14.43 0.6 undecidable manual S 336 12.1767 123 -0.05 50
IV.ASQU.HHZ. 2020-07-03T04:57:13.78 0.1 undecidable manual P 175 20.0688 112 0.01 99
IV.SFI.EHZ. 2020-07-03T04:57:13.88 0.6 undecidable manual S 142 10.1787 128 -0.05 50
IV.RINC.HHZ. 2020-07-03T04:57:13.21 0.3 undecidable manual P 232 16.3725 116 0.13 73
IV.SFI.EHZ. 2020-07-03T04:57:12.10 0.3 positive manual P 142 10.1787 128 0.07 74
IV.LMD.HHE. 2020-07-03T04:57:12.35 0.1 undecidable manual P 336 12.1767 123 0 100
IV.BRIS.HHZ. 2020-07-03T04:57:12.16 3.0 positive manual P -4.2 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SFI.EHE. ML:1.0 0.0001414046 0.1216 AML other m 2020-07-03T04:57:14.08
IV.SFI.EHN. ML:1.0 0.0001358463 0.1216 AML other m 2020-07-03T04:57:14.08
IV.SFI.HNE. ML:1.0 0.0001414957805 0.112 AML other m 2020-07-03T04:57:14.08
IV.SFI.HNN. ML:0.9 0.00012012585000000001 0.1216 AML other m 2020-07-03T04:57:14.08
IV.BRIS.HHE. ML:1.0 0.00005577368 0.2016 AML other m 2020-07-03T04:57:20.25
IV.BRIS.HHN. ML:1.1 0.00006548877000000001 5.8784 AML other m 2020-07-03T04:57:20.72
IV.BRIS.HNE. ML:1.3 0.000114343655 0.5376 AML other m 2020-07-03T04:57:22.63
IV.RINC.HHE. ML:0.6 0.00003616358 0.3008 AML other m 2020-07-03T04:57:15.97
IV.RINC.HHN. ML:0.6 0.000034675089999999995 0.4416 AML other m 2020-07-03T04:57:19.94
IV.ASQU.HHE. ML:1.3 0.00015507635000000001 0.2592 AML other m 2020-07-03T04:57:17.29
IV.ASQU.HHN. ML:1.2 0.00011191389999999999 0.32 AML other m 2020-07-03T04:57:17.41
IV.RONT.HHE. ML:1.1 0.00007359976 0.1376 AML other m 2020-07-03T04:57:20.88
IV.RONT.HHN. ML:1.0 0.00005345333500000001 0.1408 AML other m 2020-07-03T04:57:20.90
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