ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of ML 0.4 on date 11-12-2018 and time 23:17:49 (UTC) in region 1 km NE Scheggia e Pascelupo (PG)

A magnitude ML 0.4 earthquake occured in region: 1 km NE Scheggia e Pascelupo (PG), on

  • 11-12-2018 23:17:49 (UTC)
  • 12-12-2018 00:17:49 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.41, 12.67 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 1 1393 1393
Costacciaro PG 6 1216 2609
Cantiano PU 8 2245 4854
Gubbio PG 10 32216 37070
Sigillo PG 10 2404 39474
Serra Sant'Abbondio PU 12 1027 40501
Frontone PU 13 1300 41801
Fossato di Vico PG 15 2840 44641
Sassoferrato AN 15 7285 51926
Cagli PU 16 8731 60657
Pietralunga PG 19 2111 62768

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km NE of Perugia (166134 inhabitants)
50 Km N of Foligno (57155 inhabitants)
56 Km SW of Fano (60888 inhabitants)
59 Km SW of Pesaro (94582 inhabitants)
64 Km E of Arezzo (99543 inhabitants)
72 Km W of Ancona (100861 inhabitants)
73 Km S of Rimini (147750 inhabitants)
88 Km SE of Cesena (96758 inhabitants)
94 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
Rev 100 ML 0.4 2018-12-11
23:17:49
43.41 12.67 13 2018-12-11
23:22:46
Sala Sismica INGV-Roma 63848131
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-12-11 23:17:49 ± 0.12
Latitude 43.41 ± 0.00
Longitude 12.67 ± 0.01
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 63848131

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 489
Semi-minor axis of confidence ellipse (meter) 231
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 175
Circular confidence region, given by single value of horizontal uncertainty (meter) 490
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 131
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.08454
Epicentral distance of station farthest from the epicenter (degree) 0.19515
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.2
Num. used stations 9
Type of magnitude ML
Reference to an origin 63848131
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-12-11 23:22:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ATVO.HHZ. 2018-12-11T23:17:57.54 0.3 undecidable manual S 262 0.1952 102 -0.27 69
IV.MURB.HHZ. 2018-12-11T23:17:57.90 0.3 undecidable manual S 217 0.1808 104 0.49 68
IV.PIEI.HHZ. 2018-12-11T23:17:56.91 0.3 undecidable manual S 322 0.1619 107 0.05 74
IV.FOSV.EHZ. 2018-12-11T23:17:55.71 0.1 undecidable manual S 150 0.1304 116 -0.29 94
IV.FRON.EHZ. 2018-12-11T23:17:55.75 0.3 undecidable manual S 19 0.116 121 0.14 74
IV.MURB.HHZ. 2018-12-11T23:17:54.07 0.1 undecidable manual P 217 0.1808 104 0 98
IV.ATVO.HHZ. 2018-12-11T23:17:54.28 0.1 undecidable manual P 262 0.1952 102 -0.03 97
IV.ATFO.HHZ. 2018-12-11T23:17:54.80 0.3 undecidable manual S 240 0.0845 134 -0.08 73
IV.PIEI.HHZ. 2018-12-11T23:17:53.73 0.1 undecidable manual P 322 0.1619 107 -0.03 97
IV.FOSV.EHZ. 2018-12-11T23:17:53.15 0.1 undecidable manual P 150 0.1304 116 -0.12 97
IV.FRON.EHZ. 2018-12-11T23:17:53.17 0.1 undecidable manual P 19 0.116 121 0.14 98
IV.ATFO.HHZ. 2018-12-11T23:17:52.63 0.1 undecidable manual P 240 0.0845 134 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATFO.HHN. ML:0.7 5.5292285E-5 0.1024 AML other m 2018-12-11T23:17:54.94
IV.ATFO.HHE. ML:0.6 4.3919795E-5 0.1664 AML other m 2018-12-11T23:17:55.03
IV.FOSV.EHN. ML:0.1 1.181221E-5 0.0768 AML other m 2018-12-11T23:17:56.14
IV.FOSV.EHE. ML:0.5 2.67780015E-5 0.128 AML other m 2018-12-11T23:17:55.87
IV.FRON.EHN. ML:0.5 3.1966505E-5 0.1024 AML other m 2018-12-11T23:17:55.91
IV.FRON.EHE. ML:0.5 2.986216E-5 0.1536 AML other m 2018-12-11T23:17:55.77
IV.PIEI.HHN. ML:0.1 1.23296695E-5 0.1664 AML other m 2018-12-11T23:17:57.02
IV.PIEI.HHE. ML:0.1 1.2255315E-5 0.0768 AML other m 2018-12-11T23:17:57.22
IV.MURB.HHN. ML:0.6 2.744521E-5 0.256 AML other m 2018-12-11T23:17:58.20
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