Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 07-07-2020 and time 01:36:26 (UTC) in region 4 km W Premilcuore (FC)

A magnitude ML 0.8 earthquake occured in region: 4 km W Premilcuore (FC), on

  • 07-07-2020 01:36:26 (UTC)
  • 07-07-2020 03:36:26 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.9910, 11.7300 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.

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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 4 799 799
Portico e San Benedetto FC 6 756 1555
Tredozio FC 10 1212 2767
San Godenzo FI 11 1167 3934
Rocca San Casciano FC 12 1910 5844
Marradi FI 13 3139 8983
Galeata FC 15 2516 11499
Santa Sofia FC 15 4136 15635
Civitella di Romagna FC 17 3786 19421
Modigliana FC 19 4560 23981
Dovadola FC 19 1653 25634
Londa FI 19 1840 27474
Dicomano FI 20 5515 32989
Palazzuolo sul Senio FI 20 1154 34143

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km SW of Faenza (58541 inhabitants)
36 Km SW of Forlì (117913 inhabitants)
40 Km S of Imola (69797 inhabitants)
44 Km W of Cesena (96758 inhabitants)
45 Km NE of Firenze (382808 inhabitants)
51 Km NE of Scandicci (50609 inhabitants)
52 Km E of Prato (191150 inhabitants)
60 Km N of Arezzo (99543 inhabitants)
61 Km SW of Ravenna (159116 inhabitants)
64 Km SE of Bologna (386663 inhabitants)
65 Km E of Pistoia (90315 inhabitants)
67 Km W of Rimini (147750 inhabitants)
81 Km NE of Siena (53903 inhabitants)
95 Km S of Ferrara (133155 inhabitants)
95 Km W of Pesaro (94582 inhabitants)
97 Km SE of Modena (184973 inhabitants)
100 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
Reviewed
Rev100 		ML 0.8 2020-07-07
01:36:26		 43.9908 11.7295 10 2020-07-07
01:46:46		 Sala Sismica INGV-Roma 80845481
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-07 01:36:26 ± 0.08
Latitude 43.9908 ± 0.0036
Longitude 11.7295 ± 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 80845481

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 541
Semi-minor axis of confidence ellipse (meter) 146
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 71
Circular confidence region, given by single value of horizontal uncertainty (meter) 540.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 129
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.08813
Epicentral distance of station farthest from the epicenter (degree) 0.40469
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 80845481
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-07 01:46:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CRE.HHZ. 2020-07-07T01:36:41.25 0.3 undecidable manual S 157 44.9217 50 0.39 68
IV.SEI.HHN. 2020-07-07T01:36:37.03 0.6 undecidable manual S 283 30.4473 50 0.04 50
IV.VISG.HHE. 2020-07-07T01:36:37.80 0.6 undecidable manual S 313 32.1456 50 0.34 47
IV.BRIS.HHZ. 2020-07-07T01:36:36.37 0.3 undecidable manual S 6 26.0517 110 0.68 64
IV.RONT.HHZ. 2020-07-07T01:36:35.21 0.3 undecidable manual S 271 23.6541 112 0.3 72
IV.RUFI.EHZ. 2020-07-07T01:36:35.25 0.6 undecidable manual S 226 24.4533 111 0.09 50
IV.ASQU.HHZ. 2020-07-07T01:36:34.29 0.6 undecidable manual S 167 22.0668 113 -0.11 50
IV.CRE.HHZ. 2020-07-07T01:36:34.35 0.1 undecidable manual P 157 44.9217 50 -0.26 93
IV.RINC.HHZ. 2020-07-07T01:36:32.39 0.6 undecidable manual S 220 15.1737 122 0.12 51
IV.VISG.HHE. 2020-07-07T01:36:32.52 0.1 undecidable manual P 313 32.1456 50 -0.12 98
IV.RUFI.EHZ. 2020-07-07T01:36:31.29 0.3 positive manual P 226 24.4533 111 -0.02 76
IV.SEI.HHN. 2020-07-07T01:36:31.93 0.1 undecidable manual P 283 30.4473 50 -0.44 92
IV.BRIS.HHZ. 2020-07-07T01:36:31.81 0.6 negative manual P 6 26.0517 110 0.19 49
IV.RONT.HHZ. 2020-07-07T01:36:31.07 0.1 undecidable manual P 271 23.6541 112 -0.1 100
IV.SFI.EHZ. 2020-07-07T01:36:31.74 0.6 undecidable manual S 135 13.3755 125 -0.02 52
IV.LMD.HHZ. 2020-07-07T01:36:30.16 0.6 undecidable manual S 350 9.7791 134 -0.63 45
IV.ASQU.HHZ. 2020-07-07T01:36:30.90 0.3 positive manual P 167 22.0668 113 0.03 76
IV.SFI.EHZ. 2020-07-07T01:36:29.40 0.6 positive manual P 135 13.3755 125 0.05 51
IV.RINC.HHZ. 2020-07-07T01:36:29.83 0.3 positive manual P 220 15.1737 122 0.18 75
IV.LMD.HHZ. 2020-07-07T01:36:28.54 0.1 positive manual P 350 9.7791 134 -0.25 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LMD.HHE. ML:1.4 0.0003735 0.34 AML other m 2020-07-07T01:36:30.40
IV.LMD.HHN. ML:1.2 0.000193 1.16 AML other m 2020-07-07T01:36:30.87
IV.SFI.EHN. ML:0.5 0.0000374 1.1 AML other m 2020-07-07T01:36:32.91
IV.RINC.HHN. ML:0.7 0.000052 1.14 AML other m 2020-07-07T01:36:33.23
IV.RINC.HHE. ML:0.7 0.000043349999999999997 0.92 AML other m 2020-07-07T01:36:33.48
IV.SFI.EHE. ML:0.5 0.000034750000000000004 1.24 AML other m 2020-07-07T01:36:33.26
IV.ASQU.HHN. ML:0.8 0.00004085 0.22 AML other m 2020-07-07T01:36:34.87
IV.ASQU.HHE. ML:0.7 0.000033799999999999995 0.98 AML other m 2020-07-07T01:36:35.86
IV.BRIS.HHN. ML:1.0 0.000059909644999999996 0.3 AML other m 2020-07-07T01:36:37.26
IV.BRIS.HHE. ML:1.0 0.00004989044 0.22 AML other m 2020-07-07T01:36:36.49
IV.CRE.HHE. ML:0.7 0.000016505100000000002 0.32 AML other m 2020-07-07T01:36:41.56
IV.CRE.HHN. ML:0.9 0.00002603929 0.16 AML other m 2020-07-07T01:36:41.61
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