Earthquake with magnitude of ML 0.8 on date 27-01-2020 and time 22:20:15 (Italy) in region 1 km W Premilcuore (FC)

A magnitude ML 0.8 earthquake occured in region: 1 km W Premilcuore (FC), on

  • 27-01-2020 21:20:15 (UTC)
  • 27-01-2020 22:20:15 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.9810, 11.7610 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.

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 5 756 1555
Tredozio FC 11 1212 2767
Rocca San Casciano FC 11 1910 4677
Galeata FC 12 2516 7193
Santa Sofia FC 12 4136 11329
San Godenzo FI 13 1167 12496
Civitella di Romagna FC 15 3786 16282
Marradi FI 16 3139 19421
Dovadola FC 19 1653 21074
Modigliana FC 20 4560 25634

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km SW of Forlì (117913 inhabitants)
35 Km S of Faenza (58541 inhabitants)
42 Km S of Imola (69797 inhabitants)
42 Km W of Cesena (96758 inhabitants)
47 Km NE of Firenze (382808 inhabitants)
53 Km E of Scandicci (50609 inhabitants)
54 Km E of Prato (191150 inhabitants)
58 Km N of Arezzo (99543 inhabitants)
60 Km SW of Ravenna (159116 inhabitants)
65 Km W of Rimini (147750 inhabitants)
66 Km SE of Bologna (386663 inhabitants)
68 Km E of Pistoia (90315 inhabitants)
81 Km NE of Siena (53903 inhabitants)
93 Km W of Pesaro (94582 inhabitants)
96 Km S of Ferrara (133155 inhabitants)
99 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 0.8 2020-01-27
21:20:15
43.9812 11.7612 8 2020-01-27
21:27:52
Sala Sismica INGV-Roma 75923451
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-27 21:20:15 ± 0.26
Latitude 43.9812 ± 0.0045
Longitude 11.7612 ± 0.0087
Depth (km) 8 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 75923451

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 665
Semi-minor axis of confidence ellipse (meter) 326
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 250
Circular confidence region, given by single value of horizontal uncertainty (meter) 670.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 140
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.29857
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 11
Type of magnitude ML
Reference to an origin 75923451
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-27 21:27:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FIR.HHZ. 2020-01-27T21:20:30.84 3.0 undecidable manual S -0.09 0
IV.SEI.HHZ. 2020-01-27T21:20:26.96 0.6 undecidable manual S 284 33.1446 103 0.07 48
IV.RONT.HHN. 2020-01-27T21:20:25.28 0.6 undecidable manual S 273 26.2515 106 0.7 41
IV.BRIS.HHZ. 2020-01-27T21:20:25.57 0.6 undecidable manual S 1 26.9508 106 0.74 41
IV.RUFI.EHZ. 2020-01-27T21:20:24.44 0.6 undecidable manual S 232 25.6521 107 0.06 49
IV.ASQU.HHZ. 2020-01-27T21:20:22.77 0.3 undecidable manual S 174 20.5683 110 0.06 74
IV.SEI.HHZ. 2020-01-27T21:20:21.43 0.3 undecidable manual P 284 33.1446 103 -0.48 67
IV.RUFI.EHZ. 2020-01-27T21:20:20.24 0.1 undecidable manual P 232 25.6521 107 -0.21 95
IV.RONT.HHN. 2020-01-27T21:20:20.72 0.6 undecidable manual P 273 26.2515 106 0.15 48
IV.BRIS.HHZ. 2020-01-27T21:20:20.79 0.3 undecidable manual P 1 26.9508 106 0.07 73
IV.ASQU.HHZ. 2020-01-27T21:20:19.51 0.1 undecidable manual P 174 20.5683 110 0.01 100
IV.LMD.HHZ. 2020-01-27T21:20:19.41 0.6 undecidable manual S 338 11.4774 124 -0.49 46
IV.SFI.EHZ. 2020-01-27T21:20:19.84 0.6 undecidable manual S 141 10.878 125 0.13 50
IV.RINC.HHE. 2020-01-27T21:20:18.74 0.1 undecidable manual P 230 16.1727 115 0.06 100
IV.SFI.EHZ. 2020-01-27T21:20:17.72 0.3 undecidable manual P 141 10.878 125 -0.05 76
IV.LMD.HHZ. 2020-01-27T21:20:17.61 0.3 positive manual P 338 11.4774 124 -0.26 72
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LMD.HHE. ML:0.7 0.00007060769 0.256 AML other m 2020-01-27T21:20:19.51
IV.LMD.HHN. ML:0.6 0.00005156691 0.128 AML other m 2020-01-27T21:20:20.61
IV.SFI.EHE. ML:0.5 0.000037959045 0.2048 AML other m 2020-01-27T21:20:23.28
IV.SFI.EHN. ML:0.5 0.000045908620000000004 0.1152 AML other m 2020-01-27T21:20:20.02
IV.SFI.HNE. ML:1.1 0.00018955925 0.7552 AML other m 2020-01-27T21:20:22.10
IV.SFI.HNN. ML:0.8 0.000095531375 0.384 AML other m 2020-01-27T21:20:22.05
IV.ASQU.HHE. ML:0.5 0.00002373608 0.1152 AML other m 2020-01-27T21:20:23.61
IV.ASQU.HHN. ML:0.6 0.000030637455 0.32 AML other m 2020-01-27T21:20:23.27
IV.RUFI.EHN. ML:0.9 0.000049271525 7.8336 AML other m 2020-01-27T21:20:24.79
IV.SEI.HHE. ML:1.2 0.00006830227999999999 0.4608 AML other m 2020-01-27T21:20:27.20
IV.SEI.HHN. ML:1.3 0.000083077805 0.32 AML other m 2020-01-27T21:20:27.22
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