Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 06-01-2021 and time 17:00:58 (Italy) in region 4 km W Gubbio (PG)

A magnitude ML 1.1 earthquake occured in region: 4 km W Gubbio (PG), on

  • 06-01-2021 16:00:58 (UTC)
  • 06-01-2021 17:00:58 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.3580, 12.5300 at 8 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
Gubbio PG 4 32216 32216
Pietralunga PG 12 2111 34327
Scheggia e Pascelupo PG 12 1393 35720
Costacciaro PG 15 1216 36936
Cantiano PU 15 2245 39181
Montone PG 16 1680 40861
Umbertide PG 17 16681 57542
Sigillo PG 17 2404 59946

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km NE of Perugia (166134 inhabitants)
47 Km NW of Foligno (57155 inhabitants)
54 Km E of Arezzo (99543 inhabitants)
67 Km SW of Fano (60888 inhabitants)
69 Km SW of Pesaro (94582 inhabitants)
78 Km S of Rimini (147750 inhabitants)
85 Km W of Ancona (100861 inhabitants)
89 Km N of Terni (111501 inhabitants)
90 Km S of Cesena (96758 inhabitants)
97 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 2021-01-06
16:00:58		 43.3583 12.5297 8 2021-01-06
16:05:11		 Sala Sismica INGV-Roma 86048541
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-06 16:00:58 ± 0.07
Latitude 43.3583 ± 0.0027
Longitude 12.5297 ± 0.0049
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 86048541

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 370
Semi-minor axis of confidence ellipse (meter) 136
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 263
Circular confidence region, given by single value of horizontal uncertainty (meter) 370.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 124
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.03148
Epicentral distance of station farthest from the epicenter (degree) 0.32915
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 86048541
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-06 16:05:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ASSB.HHZ. 2021-01-06T16:01:11.80 0.3 undecidable manual S 163 36.5412 50 -0.09 71
IV.BADI.EHZ. 2021-01-06T16:01:09.17 0.3 undecidable manual S 306 28.4493 105 -0.02 73
IV.NARO.HHZ. 2021-01-06T16:01:08.90 0.3 undecidable manual S 8 28.3494 105 -0.24 70
IV.FRON.EHZ. 2021-01-06T16:01:07.66 0.3 undecidable manual S 42 23.6541 108 0.05 74
IV.PIEI.HHZ. 2021-01-06T16:01:06.59 0.3 undecidable manual S 1 19.6692 112 0.29 70
IV.ASSB.HHZ. 2021-01-06T16:01:06.35 1.0 undecidable manual P 163 36.5412 50 -0.07 24
IV.BADI.EHZ. 2021-01-06T16:01:04.80 0.1 undecidable manual P 306 28.4493 105 -0.07 97
IV.NARO.HHZ. 2021-01-06T16:01:04.76 0.1 undecidable manual P 8 28.3494 105 -0.07 97
IV.FRON.EHZ. 2021-01-06T16:01:04.04 0.6 positive manual P 42 23.6541 108 0.09 49
IV.ATPI.EHZ. 2021-01-06T16:01:04.65 0.3 undecidable manual S 315 14.4744 118 -0.02 75
IV.PIEI.HHZ. 2021-01-06T16:01:03.40 1.0 negative manual P 1 19.6692 112 0.2 24
IV.MURB.HHZ. 2021-01-06T16:01:03.44 0.3 undecidable manual S 182 10.5783 126 -0.08 75
IV.MURB.HHZ. 2021-01-06T16:01:02.07 0.6 positive manual P 182 10.5783 126 0.48 46
IV.ATPI.EHZ. 2021-01-06T16:01:02.21 1.0 positive manual P 315 14.4744 118 -0.04 25
IV.ATFO.HHZ. 2021-01-06T16:01:01.66 0.3 undecidable manual S 75 3.4965 156 -0.27 73
IV.ATFO.HHZ. 2021-01-06T16:01:00.79 0.1 positive manual P 75 3.4965 156 0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MURB.HHE. ML:1.2 0.000209 0.62 AML other m 2021-01-06T16:01:04.33
IV.MURB.HHN. ML:1.1 0.0001585 1.7 AML other m 2021-01-06T16:01:06.86
IV.PIEI.HHN. ML:0.9 0.00005830000000000001 0.22 AML other m 2021-01-06T16:01:07.15
IV.PIEI.HHE. ML:1.1 0.00009520000000000001 0.28 AML other m 2021-01-06T16:01:07.40
IV.BADI.EHN. ML:1.2 0.0000732 0.18 AML other m 2021-01-06T16:01:09.39
IV.BADI.EHE. ML:1.0 0.00005069999999999999 0.96 AML other m 2021-01-06T16:01:09.38
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