Earthquake with magnitude of ML 0.4 on date 18-10-2021 and time 13:51:59 (Italy) in region 4 km E Scheggia e Pascelupo (PG)

A magnitude ML 0.4 earthquake occured in region: 4 km E Scheggia e Pascelupo (PG), on

  • 18-10-2021 11:51:59 (UTC)
  • 18-10-2021 13:51:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.394, 12.713 at 12 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 4 1393 1393
Costacciaro PG 4 1216 2609
Sigillo PG 7 2404 5013
Cantiano PU 11 2245 7258
Fossato di Vico PG 12 2840 10098
Gubbio PG 12 32216 42314
Serra Sant'Abbondio PU 12 1027 43341
Sassoferrato AN 13 7285 50626
Frontone PU 14 1300 51926
Fabriano AN 17 31480 83406
Cagli PU 18 8731 92137
Genga AN 18 1797 93934
Gualdo Tadino PG 19 15208 109142

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km NE of Perugia (166134 inhabitants)
49 Km N of Foligno (57155 inhabitants)
56 Km SW of Fano (60888 inhabitants)
60 Km S of Pesaro (94582 inhabitants)
68 Km E of Arezzo (99543 inhabitants)
70 Km W of Ancona (100861 inhabitants)
75 Km S of Rimini (147750 inhabitants)
91 Km SE of Cesena (96758 inhabitants)
93 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 0.4 2021-10-18
11:51:59
43.3942 12.7133 12 2021-10-18
12:09:47
Sala Sismica INGV-Roma 96724801
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-18 11:51:59 ± 0.06
Latitude 43.3942 ± 0.0018
Longitude 12.7133 ± 0.0050
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96724801

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 317
Semi-minor axis of confidence ellipse (meter) 176
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 256
Circular confidence region, given by single value of horizontal uncertainty (meter) 320
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 185
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 14
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) 0.23652
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 96724801
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-18 12:09:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CSNT.HHZ. 2021-10-18T11:52:21.78 3.0 negative manual P 0.92 0
IV.CRTC.HHZ. 2021-10-18T11:52:15.50 3.0 undecidable manual S 0.28 0
IV.MPAG.EHZ. 2021-10-18T11:52:09.13 3.0 undecidable manual S 0
IV.ATCC.EHZ. 2021-10-18T11:52:08.40 0.3 undecidable manual S 194 0.2158 96 0.17 71
IV.NARO.HHZ. 2021-10-18T11:52:08.91 0.3 undecidable manual S 336 0.2365 95 0.06 72
IV.PIEI.HHZ. 2021-10-18T11:52:07.44 0.1 undecidable manual S 318 0.1916 98 -0.08 97
IV.MURB.HHZ. 2021-10-18T11:52:07.56 0.6 undecidable manual S 226 0.1898 98 0.09 48
IV.MML1.EHZ. 2021-10-18T11:52:06.53 3.0 negative manual P -1.24 0
IV.ATFO.HHZ. 2021-10-18T11:52:05.08 0.1 undecidable manual S 255 0.107 120 -0.04 99
IV.PIEI.HHZ. 2021-10-18T11:52:04.03 0.3 undecidable manual P 318 0.1916 98 -0.04 74
IV.ATCC.EHZ. 2021-10-18T11:52:04.38 0.3 undecidable manual P 194 0.2158 96 -0.1 72
IV.MURB.HHZ. 2021-10-18T11:52:04.08 0.3 undecidable manual P 226 0.1898 98 0.04 73
IV.NARO.HHZ. 2021-10-18T11:52:04.77 0.1 undecidable manual P 336 0.2365 95 -0.07 97
IV.FOSV.EHZ. 2021-10-18T11:52:04.99 0.1 undecidable manual S 161 0.1052 121 -0.1 98
IV.ARVD.HHZ. 2021-10-18T11:52:04.31 3.0 positive manual P -0.1 0
IV.ATSC.EHN. 2021-10-18T11:52:03.82 0.3 undecidable manual S 327 0.036 157 0.09 76
IV.APEC.HHZ. 2021-10-18T11:52:03.15 3.0 undecidable manual P 0
IV.FOSV.EHZ. 2021-10-18T11:52:02.65 0.1 undecidable manual P 161 0.1052 121 -0.02 100
IV.ATFO.HHZ. 2021-10-18T11:52:02.64 0.3 undecidable manual P 255 0.107 120 -0.05 74
IV.ATSC.EHN. 2021-10-18T11:52:02.02 0.1 undecidable manual P 327 0.036 157 0.14 99
IV.MPAG.EHZ. 2021-10-18T11:52:01.45 3.0 undecidable manual P 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PIEI.HHN. ML:0.2 1.167E-5 0.2 AML other m 2021-10-18T11:52:07.59
IV.PIEI.HHE. ML:0.2 1.15594435E-5 0.1408 AML other m 2021-10-18T11:52:07.64
IV.MURB.HHN. ML:1.1 7.8E-5 1.68 AML other m 2021-10-18T11:52:07.87
IV.MURB.HHE. ML:1 5.795E-5 0.22 AML other m 2021-10-18T11:52:08.43
IV.ARVD.HHN. ML:0.2 1.1614611E-5 0.0576 AML other m 2021-10-18T11:52:08.28
IV.ARVD.HHE. ML:0.4 1.4565E-5 0.42 AML other m 2021-10-18T11:52:13.14
IV.ATFO.HHE. ML:0.4 2.692418E-5 0.1984 AML other m 2021-10-18T11:52:05.51
IV.ATFO.HHN. ML:0.3 2.1431015E-5 0.1024 AML other m 2021-10-18T11:52:05.25
IV.FOSV.EHE. ML:0.4 2.302964E-5 0.1216 AML other m 2021-10-18T11:52:05.12
IV.FOSV.EHN. ML:0.2 1.7073045E-5 0.1152 AML other m 2021-10-18T11:52:05.36
IV.MURB.HNE. ML:1.2 0.000110828585 0.5504 AML other m 2021-10-18T11:52:04.66
IV.MURB.HNN. ML:1.4 0.00014879777 1.2352 AML other m 2021-10-18T11:52:10.05
IV.ATCC.EHE. ML:0.6 2.3846545E-5 0.48 AML other m 2021-10-18T11:52:12.81
IV.ATCC.EHN. ML:0.5 1.9458415E-5 0.32 AML other m 2021-10-18T11:52:06.83
IV.NARO.HHE. ML:0.3 1.13255735E-5 0.1024 AML other m 2021-10-18T11:52:09.05
IV.NARO.HHN. ML:0 6.072931E-6 0.1152 AML other m 2021-10-18T11:52:09.19
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