Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 11-06-2020 and time 23:58:00 (Italy) in region 3 km NE Rocca San Casciano (FC)

A magnitude ML 1.0 earthquake occured in region: 3 km NE Rocca San Casciano (FC), on

  • 11-06-2020 21:58:00 (UTC)
  • 11-06-2020 23:58:00 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.0900, 11.8630 at 28 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
Rocca San Casciano FC 3 1910 1910
Dovadola FC 4 1653 3563
Modigliana FC 9 4560 8123
Tredozio FC 10 1212 9335
Predappio FC 10 6346 15681
Portico e San Benedetto FC 10 756 16437
Civitella di Romagna FC 11 3786 20223
Galeata FC 11 2516 22739
Castrocaro Terme e Terra del Sole FC 12 6426 29165
Premilcuore FC 14 799 29964
Santa Sofia FC 16 4136 34100
Meldola FC 16 9970 44070
Brisighella RA 17 7639 51709

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km SW of Forlì (117913 inhabitants)
22 Km S of Faenza (58541 inhabitants)
31 Km W of Cesena (96758 inhabitants)
32 Km SE of Imola (69797 inhabitants)
45 Km SW of Ravenna (159116 inhabitants)
56 Km W of Rimini (147750 inhabitants)
60 Km NE of Firenze (382808 inhabitants)
61 Km SE of Bologna (386663 inhabitants)
66 Km E of Prato (191150 inhabitants)
66 Km NE of Scandicci (50609 inhabitants)
69 Km N of Arezzo (99543 inhabitants)
78 Km E of Pistoia (90315 inhabitants)
85 Km S of Ferrara (133155 inhabitants)
86 Km W of Pesaro (94582 inhabitants)
96 Km NE of Siena (53903 inhabitants)
97 Km W of Fano (60888 inhabitants)
97 Km SE of Modena (184973 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 2020-06-11
21:58:00		 44.0898 11.8632 28 2020-06-11
22:07:56		 Sala Sismica INGV-Roma 80097451
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-06-11 21:58:00 ± 0.38
Latitude 44.0898 ± 0.0117
Longitude 11.8632 ± 0.0288
Depth (km) 28 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 80097451

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1937
Semi-minor axis of confidence ellipse (meter) 1496
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 286
Circular confidence region, given by single value of horizontal uncertainty (meter) 1940.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 211
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.29768
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 80097451
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-06-11 22:07:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.GSCL.HHZ. 2020-06-11T21:58:18.15 3.0 positive manual P 0 0
IV.ASQU.HHE. 2020-06-11T21:58:13.47 0.6 undecidable manual S 190 33.0447 125 0.27 47
IV.RINC.HHZ. 2020-06-11T21:58:12.92 0.6 undecidable manual S 222 30.4473 128 0.28 47
IV.BRIS.HHZ. 2020-06-11T21:58:10.91 0.6 undecidable manual S 333 16.7721 146 0.78 42
IV.SFI.EHZ. 2020-06-11T21:58:10.80 0.6 undecidable manual S 184 20.5683 140 0.07 50
IV.LMD.HHZ. 2020-06-11T21:58:09.26 0.6 undecidable manual S 264 12.4764 153 -0.28 48
IV.RINC.HHZ. 2020-06-11T21:58:07.50 0.1 undecidable manual P 222 30.4473 128 0.03 98
IV.ASQU.HHE. 2020-06-11T21:58:07.87 0.1 undecidable manual P 190 33.0447 125 0.07 97
IV.BRIS.HHZ. 2020-06-11T21:58:06.12 0.1 undecidable manual P 333 16.7721 146 0.1 100
IV.SFI.EHZ. 2020-06-11T21:58:06.23 0.1 undecidable manual P 184 20.5683 140 -0.14 99
IV.LMD.HHZ. 2020-06-11T21:58:05.23 0.1 positive manual P 264 12.4764 153 -0.45 93
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LMD.HHN. ML:1.0 0.00004565 0.16 AML other m 2020-06-11T21:58:09.66
IV.LMD.HHE. ML:0.8 0.00003575 0.18 AML other m 2020-06-11T21:58:09.79
IV.BRIS.HHE. ML:1.4 0.00010985 0.22 AML other m 2020-06-11T21:58:11.13
IV.SFI.EHN. ML:0.7 0.0000218 0.36 AML other m 2020-06-11T21:58:11.49
IV.BRIS.HHN. ML:1.5 0.00014549999999999999 0.46 AML other m 2020-06-11T21:58:11.24
IV.SFI.EHE. ML:0.8 0.00002505 1.4 AML other m 2020-06-11T21:58:11.08
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