Earthquake with magnitude of ML 0.8 on date 16-10-2021 and time 18:50:26 (UTC) in region 3 km E Scheggia e Pascelupo (PG)

A magnitude ML 0.8 earthquake occured in region: 3 km E Scheggia e Pascelupo (PG), on

  • 16-10-2021 18:50:26 (UTC)
  • 16-10-2021 20:50:26 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.418, 12.706 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
Scheggia e Pascelupo PG 3 1393 1393
Costacciaro PG 7 1216 2609
Cantiano PU 9 2245 4854
Serra Sant'Abbondio PU 10 1027 5881
Sigillo PG 10 2404 8285
Frontone PU 11 1300 9585
Gubbio PG 12 32216 41801
Sassoferrato AN 13 7285 49086
Fossato di Vico PG 14 2840 51926
Cagli PU 15 8731 60657
Fabriano AN 19 31480 92137
Genga AN 19 1797 93934
Pergola PU 19 6333 100267

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km NE of Perugia (166134 inhabitants)
51 Km N of Foligno (57155 inhabitants)
54 Km SW of Fano (60888 inhabitants)
57 Km SW of Pesaro (94582 inhabitants)
67 Km E of Arezzo (99543 inhabitants)
69 Km W of Ancona (100861 inhabitants)
73 Km S of Rimini (147750 inhabitants)
88 Km SE of Cesena (96758 inhabitants)
95 Km N of Terni (111501 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 0.8 2021-10-16
18:50:26
43.418 12.7057 11 2021-10-16
19:23:16
Sala Sismica INGV-Roma 96658411
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-16 18:50:26 ± 0.06
Latitude 43.4180 ± 0.0027
Longitude 12.7057 ± 0.0050
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 96658411

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 446
Semi-minor axis of confidence ellipse (meter) 134
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 244
Circular confidence region, given by single value of horizontal uncertainty (meter) 450
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 122
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.1295
Epicentral distance of station farthest from the epicenter (degree) 0.48833
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 96658411
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-16 19:23:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2021-10-16T18:50:43.99 0.3 undecidable manual S 132 0.4883 50 0.48 64
IV.MML1.EHZ. 2021-10-16T18:50:39.87 0.3 undecidable manual S 147 0.3606 50 0.13 71
IV.EL6.EHZ. 2021-10-16T18:50:38.04 0.3 undecidable manual S 107 0.3013 50 0.07 73
IV.ATCC.EHZ. 2021-10-16T18:50:36.41 0.3 undecidable manual S 192 0.2374 50 0.32 70
IV.CSP1.EHZ. 2021-10-16T18:50:36.37 0.1 undecidable manual P 132 0.4883 50 0.03 94
IV.FDMO.HHZ. 2021-10-16T18:50:35.74 0.6 negative manual P 144 0.4721 50 -0.32 44
IV.NARO.HHZ. 2021-10-16T18:50:35.32 0.3 undecidable manual S 335 0.2131 50 -0.04 74
IV.SNTG.HHZ. 2021-10-16T18:50:35.93 0.1 undecidable manual S 134 0.2356 50 -0.11 96
IV.MPAG.EHZ. 2021-10-16T18:50:35.62 0.3 undecidable manual S 10 0.2149 50 0.21 72
IV.ARVD.HHZ. 2021-10-16T18:50:34.64 0.3 undecidable manual S 65 0.1889 50 0 75
IV.PIEI.HHZ. 2021-10-16T18:50:34.12 0.1 undecidable manual S 314 0.1709 50 0.01 99
IV.MML1.EHZ. 2021-10-16T18:50:33.77 0.1 undecidable manual P 147 0.3606 50 -0.38 89
IV.ATCC.EHZ. 2021-10-16T18:50:32.03 0.1 undecidable manual P 192 0.2374 50 -0.02 99
IV.FOSV.EHZ. 2021-10-16T18:50:32.81 0.1 undecidable manual S 162 0.1295 127 0.02 99
IV.EL6.EHZ. 2021-10-16T18:50:32.97 0.3 undecidable manual P 107 0.3013 50 -0.17 71
IV.SNTG.HHZ. 2021-10-16T18:50:31.73 0.1 undecidable manual P 134 0.2356 50 -0.3 93
IV.MPAG.EHZ. 2021-10-16T18:50:31.59 0.1 undecidable manual P 10 0.2149 50 -0.07 98
IV.PIEI.HHZ. 2021-10-16T18:50:31.00 0.1 undecidable manual P 314 0.1709 50 0.09 97
IV.NARO.HHZ. 2021-10-16T18:50:31.53 0.1 undecidable manual P 335 0.2131 50 -0.1 98
IV.ARVD.HHZ. 2021-10-16T18:50:31.53 0.1 undecidable manual P 65 0.1889 50 0.31 94
IV.FOSV.EHZ. 2021-10-16T18:50:30.15 0.1 undecidable manual P 162 0.1295 127 0 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FOSV.EHN. ML:0.7 4.34E-5 1.54 AML other m 2021-10-16T18:50:32.88
IV.FOSV.EHE. ML:0.6 4.005E-5 1.18 AML other m 2021-10-16T18:50:33.27
IV.PIEI.HHN. ML:0.9 6.095E-5 0.16 AML other m 2021-10-16T18:50:34.30
IV.PIEI.HHE. ML:1 6.85E-5 0.08 AML other m 2021-10-16T18:50:34.62
IV.SNTG.HHE. ML:0.7 2.885E-5 0.5 AML other m 2021-10-16T18:50:35.87
IV.SNTG.HHN. ML:0.9 4.005E-5 0.98 AML other m 2021-10-16T18:50:35.41
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