Earthquake with magnitude of ML 1.7 on date 22-02-2020 and time 07:18:18 (Italy) in region 4 km SW Santa Sofia (FC)

A magnitude ML 1.7 earthquake occured in region: 4 km SW Santa Sofia (FC), on

  • 22-02-2020 06:18:18 (UTC)
  • 22-02-2020 07:18:18 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.9200, 11.8820 at 7 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
Santa Sofia FC 4 4136 4136
Galeata FC 9 2516 6652
Bagno di Romagna FC 10 6026 12678
Premilcuore FC 11 799 13477
Civitella di Romagna FC 11 3786 17263
Portico e San Benedetto FC 14 756 18019
Rocca San Casciano FC 16 1910 19929
Verghereto FC 17 1907 21836
Pratovecchio Stia AR 19 5845 27681

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km SW of Forlì (117913 inhabitants)
38 Km SW of Cesena (96758 inhabitants)
41 Km S of Faenza (58541 inhabitants)
50 Km S of Imola (69797 inhabitants)
50 Km N of Arezzo (99543 inhabitants)
53 Km E of Firenze (382808 inhabitants)
57 Km W of Rimini (147750 inhabitants)
59 Km E of Scandicci (50609 inhabitants)
61 Km SW of Ravenna (159116 inhabitants)
63 Km E of Prato (191150 inhabitants)
77 Km SE of Bologna (386663 inhabitants)
77 Km E of Pistoia (90315 inhabitants)
80 Km NE of Siena (53903 inhabitants)
83 Km W of Pesaro (94582 inhabitants)
92 Km W of Fano (60888 inhabitants)
99 Km NW of Perugia (166134 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
Bulletin
Rev1000
ML 1.7 2020-02-22
06:18:18
43.9197 11.8822 7 2020-07-18
21:08:22
Bollettino Sismico Italiano INGV 76865601
Reviewed
Rev100
ML 1.7 2020-02-22
06:18:18
43.9227 11.8873 8 2020-02-22
06:27:04
Sala Sismica INGV-Roma 76713671
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-22 06:18:18 ± 0.08
Latitude 43.9197 ± 0.0045
Longitude 11.8822 ± 0.0075
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 76865601

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 570
Semi-minor axis of confidence ellipse (meter) 382
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 246
Circular confidence region, given by single value of horizontal uncertainty (meter) 570.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 102
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.51171
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 15
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 76865601
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-02-27 12:36:32

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 76713671
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-22 06:27:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ATVO.HHZ. 2020-02-22T06:18:42.82 3.0 undecidable manual S 0.38 0
IV.BADI.EHZ. 2020-02-22T06:18:36.74 0.6 undecidable manual S 147 54.0015 50 0.34 43
IV.VISG.HHZ. 2020-02-22T06:18:34.91 0.6 undecidable manual S 310 46.5201 50 0.49 42
IV.SSP9.EHZ. 2020-02-22T06:18:33.54 0.6 undecidable manual S 152 43.2234 50 0 47
IV.PARC.HHZ. 2020-02-22T06:18:32.88 0.6 undecidable manual S 136 41.4252 50 -0.19 46
IV.CPGN.EHZ. 2020-02-22T06:18:32.44 0.3 undecidable manual S 110 37.4292 101 0.48 65
IV.RONT.HHZ. 2020-02-22T06:18:31.96 0.3 undecidable manual S 283 36.8298 101 0.23 68
IV.ATVO.HHZ. 2020-02-22T06:18:31.93 3.0 positive manual P -0.01 0
IV.BRIS.HHZ. 2020-02-22T06:18:31.51 0.6 undecidable manual S 345 35.0427 102 0.37 45
IV.MPPT.EHZ. 2020-02-22T06:18:30.34 3.0 positive manual P 0.06 0
IV.ATPI.EHZ. 2020-02-22T06:18:30.54 3.0 undecidable manual P -0.34 0
IV.CRE.HHZ. 2020-02-22T06:18:30.61 0.3 undecidable manual S 170 33.8439 102 -0.12 70
IV.NARO.HHZ. 2020-02-22T06:18:30.43 3.0 undecidable manual P -0.23 0
IV.MTRZ.HNN. 2020-02-22T06:18:29.83 0.6 undecidable manual P 320 56.7987 50 0.47 42
IV.RUFI.EHZ. 2020-02-22T06:18:29.64 0.3 undecidable manual S 253 31.1466 103 -0.18 70
IV.PE3.EHZ. 2020-02-22T06:18:29.39 3.0 positive manual P 0.51 0
IV.BADI.EHZ. 2020-02-22T06:18:28.41 0.3 undecidable manual P 147 54.0015 50 -0.52 63
IV.RINC.HHZ. 2020-02-22T06:18:27.20 0.3 undecidable manual S 261 22.2555 108 0.34 69
IV.VISG.HHZ. 2020-02-22T06:18:27.23 0.3 undecidable manual P 310 46.5201 50 -0.55 63
IV.RSM2.HHZ. 2020-02-22T06:18:27.94 0.3 undecidable manual P 87 45.0216 50 0.39 65
IV.SSP9.EHZ. 2020-02-22T06:18:27.23 0.6 undecidable manual P 152 43.2234 50 -0.05 47
IV.CPGN.EHZ. 2020-02-22T06:18:26.61 0.3 undecidable manual P 110 37.4292 101 0.25 69
IV.SEI.HHZ. 2020-02-22T06:18:26.92 3.0 positive manual P -0.12 0
IV.PARC.HHZ. 2020-02-22T06:18:26.41 0.3 undecidable manual P 136 41.4252 50 -0.59 62
IV.LMD.HHZ. 2020-02-22T06:18:26.77 0.3 undecidable manual S 321 22.3554 108 -0.12 72
IV.CRE.HHZ. 2020-02-22T06:18:25.29 0.3 undecidable manual P 170 33.8439 102 -0.36 67
IV.BRIS.HHZ. 2020-02-22T06:18:25.74 0.3 undecidable manual P 345 35.0427 102 -0.15 70
IV.RONT.HHZ. 2020-02-22T06:18:25.81 0.3 undecidable manual P 283 36.8298 101 -0.42 66
IV.ASQU.HHZ. 2020-02-22T06:18:25.13 0.3 undecidable manual S 209 15.5733 115 0.45 68
IV.RUFI.EHZ. 2020-02-22T06:18:24.85 0.1 undecidable manual P 253 31.1466 103 -0.28 92
IV.LMD.HHZ. 2020-02-22T06:18:23.22 0.1 undecidable manual P 321 22.3554 108 -0.21 94
IV.RINC.HHZ. 2020-02-22T06:18:23.47 0.1 undecidable manual P 261 22.2555 108 0.05 97
IV.ASQU.HHZ. 2020-02-22T06:18:22.43 0.1 undecidable manual P 209 15.5733 115 0.27 94
IV.SFI.HNZ. 2020-02-22T06:18:21.52 0.3 undecidable manual S 239 3.2967 156 0.01 76
IV.SFI.HNZ. 2020-02-22T06:18:20.43 0.1 undecidable manual P 239 3.2967 156 0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASQU.HHE. ML:1.8 0.0006014999999999999 0.2 AML other m 2020-02-22T06:18:25.82
IV.ASQU.HHN. ML:1.8 0.0006575 0.18 AML other m 2020-02-22T06:18:25.85
IV.LMD.HHN. ML:1.9 0.0005925 0.2 AML other m 2020-02-22T06:18:27.40
IV.LMD.HHE. ML:2.0 0.0007099999999999999 0.62 AML other m 2020-02-22T06:18:27.09
IV.RINC.HHN. ML:1.6 0.000256 0.9 AML other m 2020-02-22T06:18:27.53
IV.RINC.HHE. ML:1.6 0.00027403365000000003 0.3808 AML other m 2020-02-22T06:18:28.30
IV.RUFI.EHE. ML:1.6 0.0001815 1.58 AML other m 2020-02-22T06:18:29.83
IV.RUFI.EHN. ML:1.7 0.00023500000000000002 0.2 AML other m 2020-02-22T06:18:30.17
IV.CRE.HHN. ML:2.1 0.0006414999999999999 0.24 AML other m 2020-02-22T06:18:30.98
IV.CRE.HHE. ML:1.7 0.000228 0.3 AML other m 2020-02-22T06:18:31.48
IV.BRIS.HHE. ML:1.7 0.00022454235 1.52 AML other m 2020-02-22T06:18:31.94
IV.BRIS.HHN. ML:1.5 0.00013719565 0.2016 AML other m 2020-02-22T06:18:32.62
IV.MPPT.EHN. ML:1.8 0.00013000000000000002 0.36 AML other m 2020-02-22T06:18:39.61
IV.MPPT.EHE. ML:1.6 0.0000737 1.32 AML other m 2020-02-22T06:18:39.99
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