Earthquake with magnitude of ML 0.6 on date 26-10-2021 and time 03:33:48 (Italy) in region 7 km SW Gubbio (PG)

A magnitude ML 0.6 earthquake occured in region: 7 km SW Gubbio (PG), on

  • 26-10-2021 01:33:48 (UTC)
  • 26-10-2021 03:33:48 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.301, 12.54 at 9 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 7 32216 32216
Costacciaro PG 16 1216 33432
Scheggia e Pascelupo PG 16 1393 34825
Valfabbrica PG 16 3389 38214
Sigillo PG 17 2404 40618
Umbertide PG 17 16681 57299
Pietralunga PG 18 2111 59410
Fossato di Vico PG 18 2840 62250
Montone PG 19 1680 63930

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km NE of Perugia (166134 inhabitants)
41 Km NW of Foligno (57155 inhabitants)
56 Km E of Arezzo (99543 inhabitants)
72 Km SW of Fano (60888 inhabitants)
74 Km SW of Pesaro (94582 inhabitants)
83 Km N of Terni (111501 inhabitants)
85 Km S of Rimini (147750 inhabitants)
87 Km W of Ancona (100861 inhabitants)
96 Km S of Cesena (96758 inhabitants)
98 Km E of Siena (53903 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web 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 0.6 2021-10-26
01:33:48
43.3008 12.5398 9 2021-10-26
01:37:37
Sala Sismica INGV-Roma 96991801
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-26 01:33:48 ± 0.14
Latitude 43.3008 ± 0.0045
Longitude 12.5398 ± 0.0111
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96991801

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 866
Semi-minor axis of confidence ellipse (meter) 446
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 247
Circular confidence region, given by single value of horizontal uncertainty (meter) 870
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 130
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.03957
Epicentral distance of station farthest from the epicenter (degree) 0.31117
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.6

Field Value
Value 0.6
Uncertainty 0
Num. used stations 2
Type of magnitude ML
Reference to an origin 96991801
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-26 01:37:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.NARO.HHZ. 2021-10-26T01:34:00.47 0.1 undecidable manual S 5 0.3112 50 -0.14 98
IV.FRON.EHZ. 2021-10-26T01:33:58.51 0.1 undecidable manual S 32 0.2554 107 -0.19 98
IV.PIEI.HHZ. 2021-10-26T01:33:58.16 0.1 undecidable manual S 359 0.2347 108 0.22 98
IV.ATPI.EHZ. 2021-10-26T01:33:56.15 0.1 undecidable manual S 326 0.1799 114 0.18 100
IV.NARO.HHZ. 2021-10-26T01:33:55.36 0.6 positive manual P 5 0.3112 50 -0.1 50
IV.FRON.EHZ. 2021-10-26T01:33:54.10 1.0 negative manual P 32 0.2554 107 -0.25 24
IV.ATCC.EHZ. 2021-10-26T01:33:54.86 0.1 undecidable manual S 148 0.1367 120 0.38 97
IV.PIEI.HHZ. 2021-10-26T01:33:54.15 1.0 undecidable manual P 359 0.2347 108 0.24 24
IV.ATPI.EHZ. 2021-10-26T01:33:53.08 1.0 undecidable manual P 326 0.1799 114 0.31 24
IV.MURB.HHZ. 2021-10-26T01:33:51.38 0.1 undecidable manual S 196 0.0396 153 -0.41 98
IV.ATCC.EHZ. 2021-10-26T01:33:51.96 0.3 positive manual P 148 0.1367 120 0.05 78
IV.MURB.HHZ. 2021-10-26T01:33:50.16 0.6 undecidable manual P 196 0.0396 153 -0.2 51
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATCC.EHE. ML:0.7 4.42E-5 1.12 AML other m 2021-10-26T01:33:55.99
IV.ATCC.EHN. ML:0.6 3.96E-5 0.62 AML other m 2021-10-26T01:33:56.90
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