Earthquake with magnitude of ML 1.0 on date 12-10-2021 and time 23:38:23 (UTC) in region 2 km NE Scheggia e Pascelupo (PG)

A magnitude ML 1.0 earthquake occured in region: 2 km NE Scheggia e Pascelupo (PG), on

  • 12-10-2021 23:38:23 (UTC)
  • 13-10-2021 01:38:23 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.42, 12.687 at 13 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 2 1393 1393
Costacciaro PG 7 1216 2609
Cantiano PU 8 2245 4854
Serra Sant'Abbondio PU 11 1027 5881
Sigillo PG 11 2404 8285
Gubbio PG 11 32216 40501
Frontone PU 11 1300 41801
Sassoferrato AN 14 7285 49086
Cagli PU 14 8731 57817
Fossato di Vico PG 15 2840 60657
Fabriano AN 20 31480 92137

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km NE of Perugia (166134 inhabitants)
52 Km N of Foligno (57155 inhabitants)
54 Km SW of Fano (60888 inhabitants)
58 Km SW of Pesaro (94582 inhabitants)
65 Km E of Arezzo (99543 inhabitants)
71 Km W of Ancona (100861 inhabitants)
72 Km S of Rimini (147750 inhabitants)
87 Km SE of Cesena (96758 inhabitants)
96 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 1.0 2021-10-12
23:38:23
43.4203 12.6867 13 2021-10-13
01:16:08
Sala Sismica INGV-Roma 96483361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-12 23:38:23 ± 0.09
Latitude 43.4203 ± 0.0027
Longitude 12.6867 ± 0.0037
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96483361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 319
Semi-minor axis of confidence ellipse (meter) 210
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 280
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) 90
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) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.09982
Epicentral distance of station farthest from the epicenter (degree) 0.23742
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

Field Value
Value 1
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 96483361
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-13 01:16:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MPAG.EHZ. 2021-10-12T23:38:32.08 0.1 undecidable manual S 14 0.2149 101 0.14 97
IV.ATCC.EHZ. 2021-10-12T23:38:32.74 0.1 undecidable manual S 188 0.2374 99 0.17 94
IV.ARVD.HHZ. 2021-10-12T23:38:31.57 0.1 undecidable manual S 67 0.2005 103 0.07 98
IV.NARO.HHZ. 2021-10-12T23:38:31.64 0.3 undecidable manual S 338 0.205 102 0 74
IV.PIEI.HHZ. 2021-10-12T23:38:30.26 0.1 undecidable manual S 316 0.1592 110 -0.07 98
IV.FOSV.EHZ. 2021-10-12T23:38:29.44 0.1 undecidable manual S 157 0.1367 116 -0.27 97
IV.FRON.EHZ. 2021-10-12T23:38:28.94 0.1 undecidable manual S 16 0.1016 128 0.12 100
IV.ATCC.EHZ. 2021-10-12T23:38:28.50 0.6 positive manual P 188 0.2374 99 -0.05 49
IV.ATFO.HHZ. 2021-10-12T23:38:28.92 0.1 undecidable manual S 237 0.0998 129 0.15 99
IV.MPAG.EHZ. 2021-10-12T23:38:28.10 1.0 negative manual P 14 0.2149 101 -0.07 25
IV.PIEI.HHZ. 2021-10-12T23:38:27.13 0.1 negative manual P 316 0.1592 110 -0.12 98
IV.ARVD.HHZ. 2021-10-12T23:38:27.85 0.6 negative manual P 67 0.2005 103 -0.07 49
IV.NARO.HHZ. 2021-10-12T23:38:27.93 0.3 undecidable manual P 338 0.205 102 -0.08 74
IV.FRON.EHZ. 2021-10-12T23:38:26.35 0.6 undecidable manual P 16 0.1016 128 -0.03 50
IV.ATFO.HHZ. 2021-10-12T23:38:26.45 1.0 positive manual P 237 0.0998 129 0.1 25
IV.FOSV.EHZ. 2021-10-12T23:38:26.75 0.6 negative manual P 157 0.1367 116 -0.14 50
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATFO.HHN. ML:1.2 0.0001495 0.08 AML other m 2021-10-12T23:38:29.05
IV.ATFO.HHE. ML:1 8.89E-5 0.2 AML other m 2021-10-12T23:38:29.21
IV.PIEI.HHN. ML:0.9 5.455E-5 0.18 AML other m 2021-10-12T23:38:30.41
IV.PIEI.HHE. ML:0.8 4.99E-5 0.14 AML other m 2021-10-12T23:38:30.41
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