Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 22-01-2020 and time 18:03:00 (Italy) in region 3 km E Sigillo (PG)

A magnitude ML 1.1 earthquake occured in region: 3 km E Sigillo (PG), on

  • 22-01-2020 17:03:00 (UTC)
  • 22-01-2020 18:03:00 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.3250, 12.7820 at 11 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
Sigillo PG 3 2404 2404
Fossato di Vico PG 4 2840 5244
Costacciaro PG 7 1216 6460
Fabriano AN 10 31480 37940
Gualdo Tadino PG 10 15208 53148
Scheggia e Pascelupo PG 13 1393 54541
Sassoferrato AN 14 7285 61826
Esanatoglia MC 16 2034 63860
Cerreto d'Esi AN 17 3817 67677
Gubbio PG 17 32216 99893
Genga AN 17 1797 101690
Serra Sant'Abbondio PU 19 1027 102717
Fiuminata MC 19 1402 104119
Matelica MC 20 9981 114100

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km NE of Perugia (166134 inhabitants)
41 Km N of Foligno (57155 inhabitants)
61 Km SW of Fano (60888 inhabitants)
66 Km S of Pesaro (94582 inhabitants)
68 Km W of Ancona (100861 inhabitants)
74 Km E of Arezzo (99543 inhabitants)
84 Km S of Rimini (147750 inhabitants)
86 Km N of Terni (111501 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 1.1 2020-01-22
17:03:00		 43.3248 12.782 11 2020-01-22
17:08:16		 Sala Sismica INGV-Roma 75731571
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-22 17:03:00 ± 0.04
Latitude 43.3248 ± 0.0018
Longitude 12.7820 ± 0.0037
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 75731571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 263
Semi-minor axis of confidence ellipse (meter) 197
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 62
Circular confidence region, given by single value of horizontal uncertainty (meter) 260.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 65
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.03327
Epicentral distance of station farthest from the epicenter (degree) 0.38581
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 22
Type of magnitude ML
Reference to an origin 75731571
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-22 17:08:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2020-01-22T17:03:15.37 0.3 undecidable manual S 127 42.8238 50 0.62 61
IV.FDMO.HHZ. 2020-01-22T17:03:14.03 0.3 undecidable manual S 142 40.4262 50 -0.07 70
IV.MPAG.EHZ. 2020-01-22T17:03:12.67 0.3 undecidable manual S 357 33.8439 50 0.33 67
IV.NARO.HHZ. 2020-01-22T17:03:12.81 0.3 undecidable manual S 333 35.6421 50 -0.02 71
IV.PIEI.HHZ. 2020-01-22T17:03:11.42 0.1 undecidable manual S 320 30.747 50 -0.09 94
IV.EL6.EHZ. 2020-01-22T17:03:10.24 0.1 undecidable manual S 89 25.752 50 0.03 96
IV.FRON.EHZ. 2020-01-22T17:03:09.09 0.1 undecidable manual S 348 21.867 50 -0.07 96
IV.MURB.HHZ. 2020-01-22T17:03:09.36 0.1 undecidable manual S 252 21.867 50 0.2 94
IV.ARVD.HHZ. 2020-01-22T17:03:09.53 0.1 undecidable manual S 34 23.1546 50 0.04 96
IV.ATCC.EHZ. 2020-01-22T17:03:08.48 0.1 undecidable manual S 217 19.2696 50 0.02 98
IV.FDMO.HHZ. 2020-01-22T17:03:08.19 0.3 undecidable manual P 142 40.4262 50 -0.3 66
IV.CSP1.EHZ. 2020-01-22T17:03:08.94 0.3 undecidable manual P 127 42.8238 50 0.07 69
IV.ATFO.HHZ. 2020-01-22T17:03:08.01 0.1 undecidable manual S 285 17.5713 50 -0.01 98
IV.MPAG.EHZ. 2020-01-22T17:03:07.47 0.3 undecidable manual P 357 33.8439 50 -0.01 71
IV.NARO.HHZ. 2020-01-22T17:03:07.53 0.3 undecidable manual P 333 35.6421 50 -0.23 68
IV.SNTG.HHZ. 2020-01-22T17:03:07.09 0.1 undecidable manual S 121 14.9739 126 -0.17 95
IV.SSFR.HHZ. 2020-01-22T17:03:06.88 0.1 undecidable manual S 0 12.3765 132 0.31 93
IV.EL6.EHZ. 2020-01-22T17:03:06.24 0.3 undecidable manual P 89 25.752 50 0 73
IV.PIEI.HHZ. 2020-01-22T17:03:06.73 0.3 undecidable manual P 320 30.747 50 -0.27 68
IV.MURB.HHZ. 2020-01-22T17:03:05.81 0.1 undecidable manual P 252 21.867 50 0.17 94
IV.ARVD.HHZ. 2020-01-22T17:03:05.72 0.1 undecidable manual P 34 23.1546 50 -0.11 95
IV.ATCC.EHZ. 2020-01-22T17:03:05.15 0.1 undecidable manual P 217 19.2696 50 -0.09 96
IV.FRON.EHZ. 2020-01-22T17:03:05.42 0.1 undecidable manual P 348 21.867 50 -0.22 93
IV.SNTG.HHZ. 2020-01-22T17:03:04.42 0.3 undecidable manual P 121 14.9739 126 -0.12 72
IV.FOSV.EHZ. 2020-01-22T17:03:04.87 0.1 undecidable manual S 207 3.6963 161 0.03 100
IV.ATFO.HHZ. 2020-01-22T17:03:04.97 0.3 positive manual P 285 17.5713 50 -0.01 73
IV.SSFR.HHZ. 2020-01-22T17:03:04.22 0.6 undecidable manual P 0 12.3765 132 0.08 49
IV.FOSV.EHZ. 2020-01-22T17:03:03.20 0.3 undecidable manual P 207 3.6963 161 0.05 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FOSV.EHE. ML:1.4 0.000413 1.9 AML other m 2020-01-22T17:03:04.00
IV.FOSV.EHN. ML:1.5 0.000484 1.8 AML other m 2020-01-22T17:03:05.97
IV.SSFR.HHE. ML:1.2 0.00016450000000000001 0.98 AML other m 2020-01-22T17:03:07.54
IV.SSFR.HHN. ML:1.3 0.000199 0.3 AML other m 2020-01-22T17:03:07.19
IV.SNTG.HHE. ML:0.8 0.0000654 0.76 AML other m 2020-01-22T17:03:07.65
IV.SNTG.HHN. ML:1.1 0.0001247 0.24 AML other m 2020-01-22T17:03:07.53
IV.ATFO.HHN. ML:0.9 0.00007155 0.72 AML other m 2020-01-22T17:03:08.18
IV.ATFO.HHE. ML:1.0 0.000079 0.3 AML other m 2020-01-22T17:03:08.69
IV.ATCC.EHN. ML:1.2 0.00012304999999999998 0.16 AML other m 2020-01-22T17:03:08.65
IV.ATCC.EHE. ML:1.4 0.0001645 0.28 AML other m 2020-01-22T17:03:08.67
IV.FRON.EHE. ML:0.7 0.000036750000000000006 0.46 AML other m 2020-01-22T17:03:09.10
IV.ARVD.HHN. ML:0.7 0.00003175 0.58 AML other m 2020-01-22T17:03:09.62
IV.MURB.HHE. ML:1.4 0.000182 0.18 AML other m 2020-01-22T17:03:09.86
IV.ARVD.HHE. ML:0.8 0.00003825000000000001 1.24 AML other m 2020-01-22T17:03:10.73
IV.FRON.EHN. ML:1.0 0.000059749999999999995 0.46 AML other m 2020-01-22T17:03:10.37
IV.MURB.HHN. ML:1.4 0.00015150000000000002 0.94 AML other m 2020-01-22T17:03:10.88
IV.PIEI.HHN. ML:0.9 0.00004145 0.16 AML other m 2020-01-22T17:03:11.71
IV.PIEI.HHE. ML:1.0 0.000043650000000000004 0.1 AML other m 2020-01-22T17:03:11.96
IV.NARO.HHN. ML:0.8 0.000024125 1.3 AML other m 2020-01-22T17:03:13.82
IV.NARO.HHE. ML:0.7 0.0000214 0.84 AML other m 2020-01-22T17:03:13.15
IV.CSP1.EHN. ML:1.1 0.000038824999999999995 1.42 AML other m 2020-01-22T17:03:16.81
IV.CSP1.EHE. ML:1.1 0.000039149999999999996 0.42 AML other m 2020-01-22T17:03:16.62
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