Earthquake with magnitude of ML 1.0 on date 20-10-2019 and time 19:21:48 (Italy) in region 4 km NE Sigillo (PG)

A magnitude ML 1.0 earthquake occured in region: 4 km NE Sigillo (PG), on

  • 20-10-2019 17:21:48 (UTC)
  • 20-10-2019 19:21:48 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.35, 12.78 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
Sigillo PG 4 2404 2404
Costacciaro PG 6 1216 3620
Fossato di Vico PG 7 2840 6460
Fabriano AN 10 31480 37940
Scheggia e Pascelupo PG 11 1393 39333
Sassoferrato AN 11 7285 46618
Gualdo Tadino PG 14 15208 61826
Genga AN 15 1797 63623
Serra Sant'Abbondio PU 15 1027 64650
Gubbio PG 16 32216 96866
Cerreto d'Esi AN 17 3817 100683
Esanatoglia MC 18 2034 102717
Cantiano PU 18 2245 104962
Frontone PU 18 1300 106262

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km NE of Perugia (166134 inhabitants)
45 Km N of Foligno (57155 inhabitants)
58 Km SW of Fano (60888 inhabitants)
63 Km S of Pesaro (94582 inhabitants)
67 Km W of Ancona (100861 inhabitants)
74 Km E of Arezzo (99543 inhabitants)
81 Km S of Rimini (147750 inhabitants)
89 Km N of Terni (111501 inhabitants)
97 Km SE of Cesena (96758 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
Rev 100 ML 1.0 2019-10-20
17:21:48
43.35 12.78 13 2019-10-20
17:31:14
Sala Sismica INGV-Roma 73359351
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-20 17:21:48 ± 0.07
Latitude 43.35 ± 0.00
Longitude 12.78 ± 0.00
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 73359351

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 319
Semi-minor axis of confidence ellipse (meter) 71
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 249
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) 91
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.49103
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 73359351
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-20 17:31:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ECTS.EHZ. 2019-10-20T17:23:14.88 3.0 positive manual Pn 5.4 0
GU.SATI.HHZ. 2019-10-20T17:22:58.38 3.0 undecidable manual Pg 19.99 0
CR.ZAG.BHZ. 2019-10-20T17:22:47.50 3.0 negative manual Pg 18.24 0
IT.ORP.HGZ. 2019-10-20T17:22:35.47 3.0 undecidable manual Pg 6.89 0
IT.VNF1.HGZ. 2019-10-20T17:22:18.68 3.0 negative manual Pn -0.73 0
IV.MAON.HHZ. 2019-10-20T17:22:08.26 3.0 undecidable manual Pn 1.07 0
IV.ATPC.HHZ. 2019-10-20T17:21:58.57 0.3 undecidable manual S 299 0.2671 97 0.11 73
IV.PARC.HHZ. 2019-10-20T17:21:58.11 1.0 undecidable manual P 307 0.491 93 0.21 23
IV.CSNT.HHZ. 2019-10-20T17:21:56.82 3.0 negative manual P -0.42 0
IV.ARVD.HHE. 2019-10-20T17:21:56.41 0.3 undecidable manual S 39 0.1862 104 0.29 71
IV.ATCC.EHZ. 2019-10-20T17:21:56.37 0.3 undecidable manual S 211 0.1961 102 -0.03 75
IV.MURB.HNE. 2019-10-20T17:21:56.76 0.3 undecidable manual S 244 0.2059 101 0.07 75
IV.ATBU.HNZ. 2019-10-20T17:21:56.65 0.3 undecidable manual S 306 0.2077 101 -0.09 74
IV.FRON.EHZ. 2019-10-20T17:21:55.52 0.3 undecidable manual S 347 0.1691 107 -0.11 75
IV.SNTG.HHZ. 2019-10-20T17:21:55.13 0.3 undecidable manual S 130 0.1529 110 -0.03 76
IV.NARO.HHZ. 2019-10-20T17:21:54.45 0.3 undecidable manual P 331 0.295 96 -0.11 73
IV.ATPC.HHZ. 2019-10-20T17:21:54.21 0.3 undecidable manual P 299 0.2671 97 0.14 72
IV.MPAG.HNZ. 2019-10-20T17:21:54.31 0.6 undecidable manual P 357 0.2761 96 0.07 49
IV.SSFR.HHZ. 2019-10-20T17:21:53.59 0.3 undecidable manual S 1 0.0836 135 0.17 75
IV.ATBU.HNZ. 2019-10-20T17:21:53.16 0.6 undecidable manual P 306 0.2077 101 0.08 49
IV.ATSC.EHE. 2019-10-20T17:21:53.41 0.3 undecidable manual S 316 0.098 128 -0.34 72
IV.ATCC.EHZ. 2019-10-20T17:21:52.93 0.1 undecidable manual P 211 0.1961 102 0.05 100
IV.MURB.HNE. 2019-10-20T17:21:52.99 0.1 undecidable manual P 244 0.2059 101 -0.06 99
IV.FRON.EHZ. 2019-10-20T17:21:52.42 0.3 undecidable manual P 347 0.1691 107 -0.01 76
IV.ARVD.HHE. 2019-10-20T17:21:52.27 0.3 undecidable manual P 39 0.1862 104 -0.45 69
IV.SNTG.HHZ. 2019-10-20T17:21:52.07 0.3 undecidable manual P 130 0.1529 110 -0.09 75
IV.SSFR.HHZ. 2019-10-20T17:21:51.37 0.3 undecidable manual P 1 0.0836 135 0.21 74
IV.ATSC.EHE. 2019-10-20T17:21:51.38 0.3 undecidable manual P 316 0.098 128 0.03 77
IV.SFI.EHZ. 2019-10-20T17:21:50.49 3.0 undecidable manual P -1.41 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SSFR.HHE. ML:1.2 0.00018 0.26 AML other m 2019-10-20T17:21:53.92
IV.SSFR.HNN. ML:1.4 0.0002965 0.14 AML other m 2019-10-20T17:21:53.98
IV.SSFR.HHN. ML:1.1 0.00015 0.9 AML other m 2019-10-20T17:21:54.65
IV.SSFR.HNE. ML:1.4 0.0002615 0.78 AML other m 2019-10-20T17:21:54.10
IV.FRON.EHN. ML:0.8 4.49E-5 0.72 AML other m 2019-10-20T17:21:56.07
IV.FRON.EHE. ML:0.6 2.815E-5 1.08 AML other m 2019-10-20T17:21:56.71
IV.SNTG.HHE. ML:0.1 9.168297E-6 0.2816 AML other m 2019-10-20T17:21:55.44
IV.SNTG.HHN. ML:0.1 1.1293108E-5 0.2432 AML other m 2019-10-20T17:21:55.28
IV.ATCC.EHE. ML:0.8 3.952457E-5 0.2304 AML other m 2019-10-20T17:21:56.74
IV.ATCC.EHN. ML:0.6 2.566712E-5 0.1792 AML other m 2019-10-20T17:21:56.60
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