Earthquake with magnitude of ML 1.0 on date 27-11-2020 and time 21:46:56 (Italy) in region 11 km S Gubbio (PG)

A magnitude ML 1.0 earthquake occured in region: 11 km S Gubbio (PG), on

  • 27-11-2020 20:46:56 (UTC)
  • 27-11-2020 21:46:56 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.26, 12.56 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.

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 11 32216 32216
Valfabbrica PG 11 3389 35605
Fossato di Vico PG 17 2840 38445
Costacciaro PG 17 1216 39661
Sigillo PG 17 2404 42065
Gualdo Tadino PG 18 15208 57273
Scheggia e Pascelupo PG 19 1393 58666

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km NE of Perugia (166134 inhabitants)
35 Km NW of Foligno (57155 inhabitants)
60 Km E of Arezzo (99543 inhabitants)
75 Km SW of Fano (60888 inhabitants)
78 Km N of Terni (111501 inhabitants)
78 Km SW of Pesaro (94582 inhabitants)
87 Km W of Ancona (100861 inhabitants)
90 Km S of Rimini (147750 inhabitants)
100 Km NE of Viterbo (67173 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.0 2020-11-27
20:46:56
43.26 12.56 11 2020-11-27
21:06:11
Sala Sismica INGV-Roma 85055871
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-27 20:46:56 ± 0.03
Latitude 43.26 ± 0.00
Longitude 12.56 ± 0.00
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 85055871

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 263
Semi-minor axis of confidence ellipse (meter) 169
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 228
Circular confidence region, given by single value of horizontal uncertainty (meter) 260
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 121
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.09
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.28688
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 85055871
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-27 21:06:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MAON.HHZ. 2020-11-27T20:47:33.70 3.0 undecidable manual Sg 1.08 0
IV.ATSC.EHZ. 2020-11-27T20:47:04.48 0.3 undecidable manual S 28 0.1898 50 -0.07 72
IV.TB01.DHZ.01 2020-11-27T20:47:03.56 0.1 undecidable manual S 323 0.1565 50 0 98
IV.FRON.EHZ. 2020-11-27T20:47:02.63 0.3 undecidable manual P 24 0.2869 50 -0.15 70
IV.ATFO.HHZ. 2020-11-27T20:47:02.14 0.3 undecidable manual S 3 0.1106 132 -0.01 74
IV.ATLO.EHZ. 2020-11-27T20:47:02.54 0.3 undecidable manual S 297 0.1286 128 -0.15 72
IV.ATPI.EHZ. 2020-11-27T20:47:01.88 0.3 undecidable manual P 329 0.2275 50 0.12 71
IV.ATCC.EHZ. 2020-11-27T20:47:01.59 0.1 undecidable manual S 142 0.0899 138 0 99
IV.ASSB.HHZ. 2020-11-27T20:47:01.59 0.1 undecidable manual P 162 0.2239 50 -0.12 95
IV.ATSC.EHZ. 2020-11-27T20:47:01.23 0.3 undecidable manual P 28 0.1898 50 0.1 72
IV.ATVO.HHZ. 2020-11-27T20:47:00.82 0.3 undecidable manual P 318 0.17 50 0.03 73
IV.ATLO.EHZ. 2020-11-27T20:47:00.17 0.1 undecidable manual P 297 0.1286 128 0.12 96
IV.MURB.HHZ. 2020-11-27T20:47:00.34 0.1 undecidable manual S 283 0.0297 163 -0.08 99
IV.FOSV.EHZ. 2020-11-27T20:47:00.41 0.6 undecidable manual P 75 0.1484 124 0 49
IV.TB01.DHZ.01 2020-11-27T20:47:00.58 0.1 undecidable manual P 323 0.1565 50 0.03 98
IV.ATCC.EHZ. 2020-11-27T20:46:59.52 0.1 undecidable manual P 142 0.0899 138 0.11 97
IV.ATFO.HHZ. 2020-11-27T20:46:59.77 0.1 undecidable manual P 3 0.1106 132 0.03 99
IV.MURB.HHZ. 2020-11-27T20:46:58.77 0.1 undecidable manual P 283 0.0297 163 0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MURB.HHN. ML:1.3 0.000352 1 AML other m 2020-11-27T20:47:00.74
IV.MURB.HHE. ML:1.2 0.0002775 0.94 AML other m 2020-11-27T20:47:01.30
IV.ATCC.EHN. ML:0.9 9.14E-5 0.22 AML other m 2020-11-27T20:47:01.98
IV.ATCC.EHE. ML:0.9 9.855E-5 0.08 AML other m 2020-11-27T20:47:01.88
IV.ATFO.HHN. ML:0.6 4.6E-5 0.24 AML other m 2020-11-27T20:47:02.15
IV.ATFO.HHE. ML:0.8 6.2E-5 0.22 AML other m 2020-11-27T20:47:02.55
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