Earthquake with magnitude of ML 1.1 on date 23-09-2020 and time 18:24:51 (UTC) in region 3 km E Sigillo (PG)

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

  • 23-09-2020 18:24:51 (UTC)
  • 23-09-2020 20:24:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.3420, 12.7740 at 12 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
Sigillo PG 3 2404 2404
Fossato di Vico PG 5 2840 5244
Costacciaro PG 5 1216 6460
Fabriano AN 11 31480 37940
Scheggia e Pascelupo PG 11 1393 39333
Gualdo Tadino PG 12 15208 54541
Sassoferrato AN 13 7285 61826
Gubbio PG 16 32216 94042
Genga AN 16 1797 95839
Serra Sant'Abbondio PU 17 1027 96866
Esanatoglia MC 17 2034 98900
Cerreto d'Esi AN 17 3817 102717
Cantiano PU 19 2245 104962
Frontone PU 20 1300 106262

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km NE of Perugia (166134 inhabitants)
43 Km N of Foligno (57155 inhabitants)
59 Km SW of Fano (60888 inhabitants)
64 Km S of Pesaro (94582 inhabitants)
68 Km W of Ancona (100861 inhabitants)
73 Km E of Arezzo (99543 inhabitants)
82 Km S of Rimini (147750 inhabitants)
87 Km N of Terni (111501 inhabitants)
98 Km SE of Cesena (96758 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 2020-09-23
18:24:51
43.3418 12.7742 12 2020-09-23
18:31:28
Sala Sismica INGV-Roma 83167171
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-23 18:24:51 ± 0.1
Latitude 43.3418 ± 0.0063
Longitude 12.7742 ± 0.0074
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 83167171

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 636
Semi-minor axis of confidence ellipse (meter) 274
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 31
Circular confidence region, given by single value of horizontal uncertainty (meter) 640.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 104
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.56477
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 83167171
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-23 18:31:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LPEL.HHZ. 2020-09-23T18:25:16.96 3.0 undecidable manual Pn -0.44 0
IV.ASSB.HHZ. 2020-09-23T18:25:02.55 0.3 undecidable manual S 196 34.4433 93 -0.23 68
IV.CPGN.EHZ. 2020-09-23T18:25:01.11 0.1 undecidable manual P 325 62.6928 91 -1.08 65
IV.EL6.EHZ. 2020-09-23T18:25:01.05 0.3 undecidable manual S 93 26.4513 94 0.41 67
IV.ATVO.HHZ. 2020-09-23T18:25:01.72 0.3 undecidable manual S 279 29.9478 93 0.14 71
IV.CRTC.HHZ. 2020-09-23T18:25:00.11 3.0 undecidable manual S -0.65 0
IV.ATCC.EHZ. 2020-09-23T18:24:59.11 0.3 undecidable manual S 212 20.4684 98 0.06 74
IV.FRON.EHZ. 2020-09-23T18:24:59.06 0.3 undecidable manual S 349 19.869 98 0.16 71
IV.MURB.HHZ. 2020-09-23T18:24:59.86 0.3 undecidable manual S 247 21.9669 96 0.41 68
IV.FDMO.HHZ. 2020-09-23T18:24:58.87 0.1 undecidable manual P 143 42.3243 92 -0.18 92
IV.ATFO.HHZ. 2020-09-23T18:24:58.15 0.3 undecidable manual S 280 16.5723 104 0.12 73
IV.ATVO.HHZ. 2020-09-23T18:24:57.41 0.6 undecidable manual P 279 29.9478 93 0.25 46
IV.ASSB.HHZ. 2020-09-23T18:24:57.63 0.1 undecidable manual P 196 34.4433 93 -0.21 92
IV.MURB.HHZ. 2020-09-23T18:24:56.09 0.1 undecidable manual P 247 21.9669 96 0.17 95
IV.EL6.EHZ. 2020-09-23T18:24:56.55 0.1 undecidable manual P 93 26.4513 94 -0.06 97
IV.ATFO.HHZ. 2020-09-23T18:24:55.28 0.6 negative manual P 280 16.5723 104 0.18 48
IV.ATCC.EHZ. 2020-09-23T18:24:55.73 1.0 negative manual P 212 20.4684 98 0.03 25
IV.FOSV.EHZ. 2020-09-23T18:24:55.44 0.1 undecidable manual S 191 5.2947 149 -0.16 97
IV.FRON.EHZ. 2020-09-23T18:24:55.70 0.1 undecidable manual P 349 19.869 98 0.1 96
IV.FOSV.EHZ. 2020-09-23T18:24:53.77 0.1 undecidable manual P 191 5.2947 149 0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FOSV.EHN. ML:1.4 0.000391 0.08 AML other m 2020-09-23T18:24:55.52
IV.FOSV.EHE. ML:1.4 0.000356 0.08 AML other m 2020-09-23T18:24:55.50
IV.ATFO.HHE. ML:1.0 0.00007819999999999999 0.34 AML other m 2020-09-23T18:24:58.40
IV.ATFO.HHN. ML:0.9 0.0000711 0.36 AML other m 2020-09-23T18:24:58.67
IV.ATCC.EHN. ML:1.1 0.00009379999999999999 0.3 AML other m 2020-09-23T18:24:59.33
IV.ATCC.EHE. ML:1.3 0.0001244 0.6 AML other m 2020-09-23T18:24:59.30
IV.FRON.EHE. ML:0.7 0.0000369 0.78 AML other m 2020-09-23T18:24:59.51
IV.FRON.EHN. ML:0.8 0.0000424 0.78 AML other m 2020-09-23T18:25:00.51
IV.MURB.HHN. ML:1.1 0.0000747 0.64 AML other m 2020-09-23T18:25:00.78
IV.ATVO.HHN. ML:1.0 0.00004965 0.98 AML other m 2020-09-23T18:25:01.93
IV.ATVO.HHE. ML:1.1 0.00005745 1.74 AML other m 2020-09-23T18:25:02.01
IV.MURB.HHE. ML:1.0 0.00006555 1.3 AML other m 2020-09-23T18:25:02.68
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