Earthquake with magnitude of ML 1.3 on date 04-08-2020 and time 10:20:54 (UTC) in region Scheggia e Pascelupo (PG)

A magnitude ML 1.3 earthquake occured in region: Scheggia e Pascelupo (PG), on

  • 04-08-2020 10:20:54 (UTC)
  • 04-08-2020 12:20:54 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4, 12.67 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 1 1393 1393
Costacciaro PG 6 1216 2609
Cantiano PU 9 2245 4854
Gubbio PG 9 32216 37070
Sigillo PG 10 2404 39474
Serra Sant'Abbondio PU 13 1027 40501
Fossato di Vico PG 14 2840 43341
Frontone PU 14 1300 44641
Sassoferrato AN 16 7285 51926
Cagli PU 16 8731 60657
Pietralunga PG 19 2111 62768

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km NE of Perugia (166134 inhabitants)
50 Km N of Foligno (57155 inhabitants)
57 Km SW of Fano (60888 inhabitants)
60 Km SW of Pesaro (94582 inhabitants)
64 Km E of Arezzo (99543 inhabitants)
73 Km W of Ancona (100861 inhabitants)
74 Km S of Rimini (147750 inhabitants)
89 Km SE of Cesena (96758 inhabitants)
93 Km N of Terni (111501 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 1.3 2020-08-04
10:20:54
43.4 12.67 12 2020-08-04
10:27:05
Sala Sismica INGV-Roma 81633301
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-04 10:20:54 ± 0.04
Latitude 43.40 ± 0.00
Longitude 12.67 ± 0.00
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 81633301

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 189
Semi-minor axis of confidence ellipse (meter) 179
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 313
Circular confidence region, given by single value of horizontal uncertainty (meter) 190
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 92
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
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 14
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 81633301
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-04 10:27:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.RIBO.EHZ.01 2020-08-04T10:21:35.49 3.0 undecidable manual S -0.27 0
IV.ARRO.EHZ. 2020-08-04T10:21:21.91 3.0 undecidable manual S -1.82 0
IV.SACS.HHZ. 2020-08-04T10:21:19.57 3.0 undecidable manual S -2.96 0
IV.RIBO.EHZ.01 2020-08-04T10:21:17.84 3.0 negative manual P 0.09 0
IV.FDMO.HHZ. 2020-08-04T10:21:04.10 3.0 negative manual P -0.4 0
IV.MPAG.EHZ. 2020-08-04T10:21:04.43 0.3 undecidable manual S 16 0.2365 94 0.14 72
IV.ATPI.EHZ. 2020-08-04T10:21:03.28 0.3 undecidable manual S 284 0.2014 96 0.03 74
IV.ATCC.EHZ. 2020-08-04T10:21:03.72 0.3 undecidable manual S 186 0.2167 95 0.02 74
IV.ARVD.HHZ. 2020-08-04T10:21:03.83 0.3 undecidable manual S 64 0.2185 95 0.07 73
IV.ATVO.HHZ. 2020-08-04T10:21:02.96 0.3 undecidable manual S 264 0.1934 96 -0.04 73
IV.MURB.HHZ. 2020-08-04T10:21:02.48 0.3 undecidable manual S 218 0.1745 98 0.03 74
IV.FOSV.EHZ. 2020-08-04T10:21:00.84 0.3 undecidable manual S 148 0.1241 111 -0.17 72
IV.MPAG.EHZ. 2020-08-04T10:21:00.19 0.1 undecidable manual P 16 0.2365 94 -0.09 96
IV.FRON.EHZ. 2020-08-04T10:21:00.91 0.3 undecidable manual S 19 0.1232 111 -0.07 74
IV.ARVD.HHZ. 2020-08-04T10:21:00.16 0.1 undecidable manual P 64 0.2185 95 0.19 95
IV.MURB.HHZ. 2020-08-04T10:20:59.40 0.1 undecidable manual P 218 0.1745 98 0.18 96
IV.ATPI.EHZ. 2020-08-04T10:20:59.65 0.1 undecidable manual P 284 0.2014 96 -0.03 97
IV.ATFO.HHZ. 2020-08-04T10:20:59.93 0.3 undecidable manual S 245 0.08 131 0.04 76
IV.ATCC.EHZ. 2020-08-04T10:20:59.84 0.1 undecidable manual P 186 0.2167 95 -0.1 96
IV.SSFR.HHZ. 2020-08-04T10:20:59.97 0.3 undecidable manual S 66 0.0881 127 -0.1 74
IV.ATVO.HHZ. 2020-08-04T10:20:59.48 0.1 undecidable manual P 264 0.1934 96 -0.06 97
IV.FOSV.EHZ. 2020-08-04T10:20:58.29 0.1 undecidable manual P 148 0.1241 111 -0.1 98
IV.FRON.EHZ. 2020-08-04T10:20:58.32 0.1 undecidable manual P 19 0.1232 111 -0.05 99
IV.SSFR.HHZ. 2020-08-04T10:20:57.91 0.1 undecidable manual P 66 0.0881 127 0.07 100
IV.ATFO.HHZ. 2020-08-04T10:20:57.82 0.1 undecidable manual P 245 0.08 131 0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SSFR.HNE. ML:1.7 0.0006175 1.06 AML other m 2020-08-04T10:21:00.67
IV.ATFO.HHE. ML:1.4 0.00031 0.56 AML other m 2020-08-04T10:21:00.46
IV.SSFR.HNN. ML:1.7 0.000633 0.06 AML other m 2020-08-04T10:21:00.29
IV.SSFR.HHN. ML:1.5 0.000395 0.18 AML other m 2020-08-04T10:21:00.69
IV.FRON.EHE. ML:1.2 0.0001345 0.42 AML other m 2020-08-04T10:21:00.94
IV.FRON.EHN. ML:1.2 0.000161 0.26 AML other m 2020-08-04T10:21:01.80
IV.ATFO.HHN. ML:1.4 0.0003335822 0.2816 AML other m 2020-08-04T10:21:00.12
IV.FOSV.EHE. ML:1.2 0.0001340956 0.32 AML other m 2020-08-04T10:21:00.99
IV.FOSV.EHN. ML:0.9 7.322818E-5 0.1024 AML other m 2020-08-04T10:21:01.28
IV.ATCC.EHE. ML:1.2 8.4865565E-5 0.1216 AML other m 2020-08-04T10:21:04.33
IV.ATCC.EHN. ML:1.1 7.372079E-5 0.2432 AML other m 2020-08-04T10:21:04.52
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