Earthquake with magnitude of ML 1.1 on date 20-04-2021 and time 22:46:41 (UTC) in region 5 km W Gubbio (PG)

A magnitude ML 1.1 earthquake occured in region: 5 km W Gubbio (PG), on

  • 20-04-2021 22:46:41 (UTC)
  • 21-04-2021 00:46:41 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.3670, 12.5170 at 6 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
Gubbio PG 5 32216 32216
Pietralunga PG 11 2111 34327
Scheggia e Pascelupo PG 13 1393 35720
Cantiano PU 15 2245 37965
Montone PG 15 1680 39645
Costacciaro PG 16 1216 40861
Umbertide PG 17 16681 57542
Sigillo PG 19 2404 59946

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km NE of Perugia (166134 inhabitants)
48 Km NW of Foligno (57155 inhabitants)
52 Km E of Arezzo (99543 inhabitants)
67 Km SW of Fano (60888 inhabitants)
68 Km SW of Pesaro (94582 inhabitants)
77 Km S of Rimini (147750 inhabitants)
86 Km W of Ancona (100861 inhabitants)
89 Km S of Cesena (96758 inhabitants)
90 Km N of Terni (111501 inhabitants)
96 Km E of Siena (53903 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 2021-04-20
22:46:41
43.367 12.5173 6 2021-04-20
23:08:04
Sala Sismica INGV-Roma 89312151
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-04-20 22:46:41 ± 0.09
Latitude 43.3670 ± 0.0027
Longitude 12.5173 ± 0.0037
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 89312151

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 310
Semi-minor axis of confidence ellipse (meter) 67
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 30
Circular confidence region, given by single value of horizontal uncertainty (meter) 310.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 83
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.34624
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 14
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 36
Type of magnitude ML
Reference to an origin 89312151
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-04-20 23:08:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SEI.HHZ. 2021-04-20T22:47:18.56 3.0 undecidable manual S -0.28 0
IV.MF5.EHZ. 2021-04-20T22:47:11.11 3.0 undecidable manual S 1.76 0
IV.MNTT.EHZ. 2021-04-20T22:47:11.09 3.0 undecidable manual S -0.19 0
IV.CSP1.EHZ. 2021-04-20T22:47:02.30 3.0 undecidable manual S 0 0
IV.FDMO.HHZ. 2021-04-20T22:47:01.18 3.0 undecidable manual S 0.23 0
IV.FDMO.HHZ. 2021-04-20T22:46:52.26 3.0 positive manual P -0.15 0
IV.MGAB.HHZ. 2021-04-20T22:46:52.92 3.0 positive manual P 0.28 0
IV.CRE.HHZ. 2021-04-20T22:46:52.06 3.0 positive manual P 0.51 0
IV.FRON.EHZ. 2021-04-20T22:46:50.36 0.6 undecidable manual S 45 23.6541 105 0.05 48
IV.FOSV.EHZ. 2021-04-20T22:46:49.61 0.6 undecidable manual S 112 21.2676 106 0.12 48
IV.PE3.EHZ. 2021-04-20T22:46:49.31 0.6 negative manual P 357 36.5412 100 0.08 47
IV.PARC.HHZ. 2021-04-20T22:46:49.31 1.0 positive manual P 324 38.4282 99 -0.3 22
IV.PIEI.HHZ. 2021-04-20T22:46:49.10 0.6 undecidable manual S 4 18.7701 108 0.44 45
IV.ATMI.HHZ. 2021-04-20T22:46:48.94 0.6 undecidable manual S 260 20.4684 107 -0.28 46
IV.ARVD.HHZ. 2021-04-20T22:46:48.82 3.0 positive manual P 0.04 0
IV.MPAG.EHZ. 2021-04-20T22:46:48.65 1.0 undecidable manual P 34 35.0427 100 -0.28 22
IV.ASSB.HHZ. 2021-04-20T22:46:48.83 3.0 negative manual P -0.04 0
IV.BADI.EHZ. 2021-04-20T22:46:47.42 0.6 negative manual P 306 27.0507 103 0.05 48
IV.NARO.HHZ. 2021-04-20T22:46:47.19 0.6 undecidable manual P 11 27.5502 103 -0.27 46
IV.FOSV.EHZ. 2021-04-20T22:46:46.17 1.0 negative manual P 112 21.2676 106 -0.07 24
IV.ATPI.EHZ. 2021-04-20T22:46:46.82 0.6 undecidable manual S 315 13.1757 115 -0.03 49
IV.FRON.EHZ. 2021-04-20T22:46:46.53 0.3 positive manual P 45 23.6541 105 -0.18 70
IV.ATMI.HHZ. 2021-04-20T22:46:46.26 1.0 undecidable manual P 260 20.4684 107 0.17 24
IV.ATCC.EHZ. 2021-04-20T22:46:46.56 0.6 undecidable manual P 154 22.4553 105 0.09 48
IV.SSFR.HHZ. 2021-04-20T22:46:46.39 0.1 negative manual P 70 22.6551 105 -0.13 95
IV.PIEI.HHZ. 2021-04-20T22:46:45.89 0.3 negative manual P 4 18.7701 108 0.12 72
IV.MURB.HHZ. 2021-04-20T22:46:44.59 0.1 positive manual P 177 11.5773 118 0.16 96
IV.ATFO.HHZ. 2021-04-20T22:46:44.27 0.6 undecidable manual S 91 4.3956 145 -0.17 48
IV.ATPI.EHZ. 2021-04-20T22:46:44.83 0.6 undecidable manual P 315 13.1757 115 0.11 48
IV.ATFO.HHZ. 2021-04-20T22:46:43.31 0.1 positive manual P 91 4.3956 145 -0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATPI.EHN. ML:1.1 0.00014150000000000002 0.3 AML other m 2021-04-20T22:46:47.31
IV.MURB.HHE. ML:1.5 0.00041000000000000005 0.72 AML other m 2021-04-20T22:46:47.16
IV.ATPI.EHE. ML:0.8 0.00007855 1.1 AML other m 2021-04-20T22:46:48.76
IV.MURB.HHN. ML:1.3 0.0003015 0.84 AML other m 2021-04-20T22:46:48.39
IV.PIEI.HHN. ML:1.2 0.0001385 0.22 AML other m 2021-04-20T22:46:49.63
IV.PIEI.HHE. ML:1.5 0.0002645 0.28 AML other m 2021-04-20T22:46:49.88
IV.FRON.EHE. ML:1.0 0.00006865 1.14 AML other m 2021-04-20T22:46:50.60
IV.ATMI.HHE. ML:1.2 0.0001095 0.74 AML other m 2021-04-20T22:46:50.25
IV.ATCC.EHN. ML:1.2 0.0001215 0.52 AML other m 2021-04-20T22:46:50.48
IV.FOSV.EHN. ML:0.7 0.00004145 1.08 AML other m 2021-04-20T22:46:50.22
IV.FRON.EHN. ML:1.2 0.0001125 0.1 AML other m 2021-04-20T22:46:51.12
IV.SSFR.HHE. ML:1.4 0.00015450000000000001 0.62 AML other m 2021-04-20T22:46:51.03
IV.FOSV.EHE. ML:0.7 0.00003485 0.22 AML other m 2021-04-20T22:46:51.35
IV.BADI.EHN. ML:1.5 0.000185 0.2 AML other m 2021-04-20T22:46:51.88
IV.SSFR.HHN. ML:1.5 0.0002125 1.38 AML other m 2021-04-20T22:46:51.11
IV.ATCC.EHE. ML:1.3 0.000135 0.24 AML other m 2021-04-20T22:46:52.27
IV.BADI.EHE. ML:1.4 0.00015899999999999996 0.14 AML other m 2021-04-20T22:46:52.27
IV.NARO.HHE. ML:0.9 0.00004615 0.06 AML other m 2021-04-20T22:46:52.62
IV.NARO.HHN. ML:0.9 0.000042749999999999996 0.52 AML other m 2021-04-20T22:46:54.14
IV.ATMI.HHN. ML:1.2 0.0001305 0.52 AML other m 2021-04-20T22:46:55.33
IV.MPAG.EHE. ML:0.8 0.00002385 0.3 AML other m 2021-04-20T22:46:55.20
IV.ARVD.HHE. ML:0.8 0.0000268 0.98 AML other m 2021-04-20T22:46:55.05
IV.PE3.EHN. ML:1.5 0.000131 0.32 AML other m 2021-04-20T22:46:55.54
IV.PARC.HHE. ML:1.0 0.000036049999999999995 1.58 AML other m 2021-04-20T22:46:56.02
IV.ARVD.HHN. ML:0.7 0.000022 0.12 AML other m 2021-04-20T22:46:56.26
IV.MPAG.EHN. ML:0.8 0.00002335 0.44 AML other m 2021-04-20T22:46:56.30
IV.PARC.HHN. ML:1.0 0.00003594999999999999 0.14 AML other m 2021-04-20T22:46:56.34
IV.PE3.EHE. ML:1.3 0.00007435 0.52 AML other m 2021-04-20T22:46:56.48
IV.ASSB.HHN. ML:1.0 0.000037 1.12 AML other m 2021-04-20T22:46:56.56
IV.ASSB.HHE. ML:0.9 0.000028650000000000002 1.4 AML other m 2021-04-20T22:46:56.04
IV.FDMO.HHE. ML:1.0 0.00002125 1.36 AML other m 2021-04-20T22:47:01.12
IV.FDMO.HHN. ML:1.1 0.000025149999999999998 1.34 AML other m 2021-04-20T22:47:01.14
IV.MPAG.HNN. ML:2.7 0.00227 0.4 AML other m 2021-04-20T22:47:01.66
IV.MPAG.HNE. ML:2.7 0.002 0.42 AML other m 2021-04-20T22:47:01.71
IV.MGAB.HHN. ML:1.3 0.0000435 0.74 AML other m 2021-04-20T22:47:02.36
IV.MGAB.HHE. ML:1.3 0.000040900000000000005 0.22 AML other m 2021-04-20T22:47:04.14
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