Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 22-01-2020 and time 11:00:07 (Italy) in region 1 km W Verghereto (FC)

A magnitude ML 1.0 earthquake occured in region: 1 km W Verghereto (FC), on

  • 22-01-2020 10:00:07 (UTC)
  • 22-01-2020 11:00:07 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.8, 12 at 15 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.

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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
Verghereto FC 1 1907 1907
Bagno di Romagna FC 7 6026 7933
Chiusi della Verna AR 12 2023 9956
Casteldelci RN 13 407 10363
Pieve Santo Stefano AR 15 3183 13546
Caprese Michelangelo AR 17 1426 14972
Sarsina FC 18 3446 18418
Chitignano AR 18 899 19317
Santa Sofia FC 18 4136 23453
Bibbiena AR 18 12241 35694
Badia Tedalda AR 18 1087 36781
Sant'Agata Feltria RN 19 2151 38932

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km N of Arezzo (99543 inhabitants)
43 Km SW of Cesena (96758 inhabitants)
47 Km S of Forlì (117913 inhabitants)
54 Km SW of Rimini (147750 inhabitants)
55 Km S of Faenza (58541 inhabitants)
59 Km E of Firenze (382808 inhabitants)
66 Km E of Scandicci (50609 inhabitants)
66 Km SE of Imola (69797 inhabitants)
71 Km S of Ravenna (159116 inhabitants)
73 Km E of Prato (191150 inhabitants)
75 Km W of Pesaro (94582 inhabitants)
76 Km NE of Siena (53903 inhabitants)
82 Km W of Fano (60888 inhabitants)
83 Km NW of Perugia (166134 inhabitants)
88 Km E of Pistoia (90315 inhabitants)
93 Km SE of Bologna (386663 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 1.0 2020-01-22
10:00:07		 43.8 12 15 2020-07-18
21:08:24		 Bollettino Sismico Italiano INGV 77076671
Reviewed
Rev100 		ML 1.0 2020-01-22
10:00:07		 43.8 12.01 11 2020-01-22
10:07:28		 Sala Sismica INGV-Roma 75719551
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-22 10:00:07 ± 0.07
Latitude 43.80 ± 0.00
Longitude 12.00 ± 0.01
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 77076671

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 431
Semi-minor axis of confidence ellipse (meter) 391
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 280
Circular confidence region, given by single value of horizontal uncertainty (meter) 430
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 168
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0.14929
Epicentral distance of station farthest from the epicenter (degree) 0.34714
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:1

Field Value
Value 1
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 77076671
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-03-06 15:11:27

ML:1

Field Value
Value 1
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 75719551
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-22 10:07:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.LMD.HHE. 2020-01-22T10:00:20.15 0.6 undecidable manual S 323 0.3471 99 0.22 46
IV.RINC.HHN. 2020-01-22T10:00:18.40 0.6 undecidable manual S 287 0.2941 101 0.04 49
IV.PARC.HHZ. 2020-01-22T10:00:16.58 0.3 undecidable manual S 131 0.2302 106 0.04 74
IV.CRE.HHZ. 2020-01-22T10:00:15.29 0.3 undecidable manual S 190 0.1826 113 0.09 74
IV.LMD.HHE. 2020-01-22T10:00:14.69 0.3 undecidable manual P 323 0.3471 99 0.19 70
IV.SFI.EHZ. 2020-01-22T10:00:14.30 0.1 undecidable manual S 315 0.1511 120 -0.06 99
IV.ASQU.HHZ. 2020-01-22T10:00:14.30 0.1 undecidable manual S 269 0.1493 121 -0.02 100
IV.RINC.HHN. 2020-01-22T10:00:13.54 0.3 undecidable manual P 287 0.2941 101 -0.06 72
IV.PARC.HHZ. 2020-01-22T10:00:12.37 0.1 undecidable manual P 131 0.2302 106 -0.17 95
IV.SFI.EHZ. 2020-01-22T10:00:11.21 0.1 undecidable manual P 315 0.1511 120 -0.08 99
IV.ASQU.HHZ. 2020-01-22T10:00:11.23 0.1 undecidable manual P 269 0.1493 121 -0.03 99
IV.CRE.HHZ. 2020-01-22T10:00:11.83 0.1 positive manual P 190 0.1826 113 0.05 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SFI.EHN. ML:0.7 3.3359865E-5 0.096 AML other m 2020-01-22T10:00:14.51
IV.ASQU.HHE. ML:0 0.000122 0.26 AML other m 2020-01-22T10:00:14.46
IV.SFI.EHE. ML:0.8 4.4860975E-5 0.0768 AML other m 2020-01-22T10:00:14.52
IV.ASQU.HHN. ML:0 0.000138 0.14 AML other m 2020-01-22T10:00:14.57
IV.CRE.HHN. ML:0 0.00010625 0.34 AML other m 2020-01-22T10:00:15.60
IV.CRE.HHE. ML:0 4.325E-5 1.58 AML other m 2020-01-22T10:00:16.08
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