Earthquake with magnitude of ML 2.0 on date 21-09-2019 and time 21:23:39 (Italy) in region 6 km SE Premilcuore (FC)

A magnitude ML 2.0 earthquake occured in region: 6 km SE Premilcuore (FC), on

  • 21-09-2019 19:23:39 (UTC)
  • 21-09-2019 21:23:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.94, 11.83 at 8 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.

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
Santa Sofia FC 7 4136 4935
Galeata FC 10 2516 7451
Portico e San Benedetto FC 11 756 8207
Civitella di Romagna FC 12 3786 11993
Rocca San Casciano FC 14 1910 13903
Bagno di Romagna FC 15 6026 19929
San Godenzo FI 16 1167 21096
Tredozio FC 17 1212 22308
Pratovecchio Stia AR 18 5845 28153

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km SW of Forlì (117913 inhabitants)
39 Km S of Faenza (58541 inhabitants)
40 Km SW of Cesena (96758 inhabitants)
48 Km S of Imola (69797 inhabitants)
49 Km E of Firenze (382808 inhabitants)
52 Km N of Arezzo (99543 inhabitants)
55 Km E of Scandicci (50609 inhabitants)
59 Km E of Prato (191150 inhabitants)
61 Km W of Rimini (147750 inhabitants)
62 Km SW of Ravenna (159116 inhabitants)
73 Km E of Pistoia (90315 inhabitants)
73 Km SE of Bologna (386663 inhabitants)
79 Km NE of Siena (53903 inhabitants)
87 Km W of Pesaro (94582 inhabitants)
96 Km W of Fano (60888 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
Rev 1000 ML 2.0 2019-09-21
19:23:39
43.93 11.83 8 2020-02-28
16:41:59
Bollettino Sismico Italiano INGV 73516271
Rev 100 ML 1.8 2019-09-21
19:23:39
43.94 11.83 8 2019-09-21
19:46:58
Sala Sismica INGV-Roma 72624671
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-21 19:23:39 ± 0.06
Latitude 43.93 ± 0.00
Longitude 11.83 ± 0.01
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 73516271

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 474
Semi-minor axis of confidence ellipse (meter) 155
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 235
Circular confidence region, given by single value of horizontal uncertainty (meter) 470
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 118
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.67989
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:2

Field Value
Value 2
Uncertainty 0.2
Num. used stations 17
Type of magnitude ML
Reference to an origin 73516271
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-10-29 15:33:25

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 20
Type of magnitude ML
Reference to an origin 72624671
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-21 19:46:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.RIBO.EHZ.01 2019-09-21T19:24:02.03 3.0 undecidable manual P -1.18 0
IV.PIEI.HHZ. 2019-09-21T19:24:01.73 0.6 undecidable manual S 128 0.6493 50 0.17 43
IV.MPPT.EHZ. 2019-09-21T19:23:58.50 0.3 undecidable manual S 273 0.5297 50 0.48 62
IV.FIR.HHZ. 2019-09-21T19:23:58.55 3.0 undecidable manual S -1.41 0
IV.PARC.HHZ. 2019-09-21T19:23:54.66 0.6 undecidable manual S 134 0.4128 50 0.1 46
IV.SSP9.EHZ. 2019-09-21T19:23:54.96 0.3 undecidable manual S 148 0.4227 50 0.11 68
IV.ATMI.HHZ. 2019-09-21T19:23:53.04 1.0 undecidable manual P 152 0.6799 50 0.42 20
IV.SEI.HHZ. 2019-09-21T19:23:52.87 0.3 undecidable manual S 290 0.3561 50 -0.02 71
IV.PIEI.HHZ. 2019-09-21T19:23:51.84 0.3 undecidable manual P 128 0.6493 50 -0.25 63
IV.NARO.HHZ. 2019-09-21T19:23:51.48 0.6 undecidable manual P 120 0.634 50 -0.35 42
IV.BRIS.HHZ. 2019-09-21T19:23:51.25 0.3 undecidable manual S 352 0.2932 104 0.49 65
IV.PE3.EHZ. 2019-09-21T19:23:50.18 0.6 undecidable manual P 116 0.5396 50 -0.03 45
IV.OSSC.HHZ. 2019-09-21T19:23:50.94 0.6 undecidable manual P 226 0.5864 50 -0.08 44
IV.MPPT.EHZ. 2019-09-21T19:23:49.92 0.3 undecidable manual P 273 0.5297 50 -0.12 67
IV.RUFI.EHZ. 2019-09-21T19:23:48.98 0.3 undecidable manual S 247 0.2473 106 -0.09 71
IV.CPGN.EHZ. 2019-09-21T19:23:48.03 0.6 undecidable manual P 110 0.3804 50 0.53 42
IV.SSP9.EHZ. 2019-09-21T19:23:48.03 0.3 undecidable manual P 148 0.4227 50 -0.19 67
IV.IMOL.EHZ. 2019-09-21T19:23:48.71 0.6 undecidable manual P 352 0.429 50 0.39 43
IV.MOCL.EHZ. 2019-09-21T19:23:48.94 3.0 positive manual P -1.96 0
IV.PARC.HHZ. 2019-09-21T19:23:47.61 0.3 undecidable manual P 134 0.4128 50 -0.44 64
IV.LMD.HHZ. 2019-09-21T19:23:46.03 0.3 undecidable manual S 329 0.1664 113 -0.09 72
IV.SEI.HHZ. 2019-09-21T19:23:46.67 0.1 negative manual P 290 0.3561 50 -0.41 87
IV.ASQU.HHZ. 2019-09-21T19:23:45.61 0.3 undecidable manual S 191 0.1403 117 0.4 68
IV.BRIS.HHZ. 2019-09-21T19:23:45.79 0.1 positive manual P 352 0.2932 104 -0.07 94
IV.RUFI.EHZ. 2019-09-21T19:23:44.75 0.1 positive manual P 247 0.2473 106 -0.13 94
IV.LMD.HHZ. 2019-09-21T19:23:43.05 0.1 positive manual P 329 0.1664 113 -0.13 96
IV.ASQU.HHZ. 2019-09-21T19:23:42.84 0.1 positive manual P 191 0.1403 117 0.19 95
IV.SFI.HNZ. 2019-09-21T19:23:42.00 0.3 undecidable manual S 153 0.0333 155 -0.18 73
IV.SFI.HNZ. 2019-09-21T19:23:40.93 0.1 undecidable manual P 153 0.0333 155 0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SFI.HNN. ML:0 0.0065259625 0.1536 AML other m 2019-09-21T19:23:42.14
IV.SFI.EHN. ML:0 0.006650844 0.1536 AML other m 2019-09-21T19:23:42.14
IV.SFI.HNE. ML:0 0.0031782045 0.1664 AML other m 2019-09-21T19:23:42.49
IV.SFI.EHE. ML:0 0.003233456 0.1792 AML other m 2019-09-21T19:23:42.48
IV.ASQU.HHE. ML:2 0.0009123622 0.1152 AML other m 2019-09-21T19:23:45.95
IV.ASQU.HHN. ML:2 0.0010371916 0.2176 AML other m 2019-09-21T19:23:45.86
IV.LMD.HHE. ML:2 0.00085900125 0.1152 AML other m 2019-09-21T19:23:46.57
IV.LMD.HHN. ML:2.2 0.001226547 0.2816 AML other m 2019-09-21T19:23:46.62
IV.RUFI.EHN. ML:2.2 0.0008196066 0.2432 AML other m 2019-09-21T19:23:49.30
IV.RUFI.EHE. ML:1.8 0.0003793089 0.256 AML other m 2019-09-21T19:23:49.26
IV.BRIS.HNE. ML:2 0.00053222455 0.2816 AML other m 2019-09-21T19:23:51.56
IV.BRIS.HNN. ML:2 0.0005061967 0.3328 AML other m 2019-09-21T19:23:51.53
IV.BRIS.HHE. ML:2.1 0.0006023134 0.2816 AML other m 2019-09-21T19:23:51.55
IV.BRIS.HHN. ML:2 0.00045237375 0.32 AML other m 2019-09-21T19:23:51.68
IV.SEI.HHN. ML:2.2 0.0006167088 0.3968 AML other m 2019-09-21T19:23:53.41
IV.SEI.HHE. ML:1.9 0.0003044385 0.2816 AML other m 2019-09-21T19:23:53.37
IV.PARC.HHN. ML:1.3 5.6833345E-5 0.4096 AML other m 2019-09-21T19:23:59.08
IV.PARC.HHE. ML:1.1 4.0363825E-5 0.1664 AML other m 2019-09-21T19:23:56.04
IV.SSP9.EHN. ML:1.2 4.742121E-5 0.2432 AML other m 2019-09-21T19:23:55.56
IV.SSP9.EHE. ML:1.2 4.831468E-5 0.4096 AML other m 2019-09-21T19:23:57.62
IV.MPPT.EHE. ML:1.4 6.0767135E-5 0.4096 AML other m 2019-09-21T19:23:59.06
IV.MPPT.EHN. ML:1.6 9.730643E-5 0.4608 AML other m 2019-09-21T19:23:58.92
IV.PE3.EHE. ML:2 0.00019945665 0.4096 AML other m 2019-09-21T19:24:00.03
IV.OSSC.HHE. ML:1.4 4.501598E-5 0.3072 AML other m 2019-09-21T19:24:02.92
IV.OSSC.HHN. ML:1.4 5.2154305E-5 0.5376 AML other m 2019-09-21T19:24:02.73
IV.PIEI.HHN. ML:0.8 1.2180106E-5 0.1408 AML other m 2019-09-21T19:24:05.11
IV.PIEI.HHE. ML:1.2 2.360364E-5 0.64 AML other m 2019-09-21T19:24:09.50
IV.ATMI.HHE. ML:1.7 7.622625E-5 0.32 AML other m 2019-09-21T19:24:04.13
IV.ATMI.HHN. ML:1.8 0.000101307825 0.3456 AML other m 2019-09-21T19:24:07.50
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download