INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 0.6 on date 08-12-2018 and time 07:55:56 (Italy) in region 5 km NW Gualdo Tadino (PG)

A magnitude ML 0.6 earthquake occured in region: 5 km NW Gualdo Tadino (PG), on

  • 08-12-2018 06:55:56 (UTC)
  • 08-12-2018 07:55:56 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.25, 12.73 at 10 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
Gualdo Tadino PG 5 15208 15208
Fossato di Vico PG 5 2840 18048
Sigillo PG 9 2404 20452
Costacciaro PG 12 1216 21668
Valfabbrica PG 15 3389 25057
Nocera Umbra PG 17 5839 30896
Fabriano AN 17 31480 62376
Gubbio PG 17 32216 94592
Esanatoglia MC 17 2034 96626
Scheggia e Pascelupo PG 18 1393 98019
Fiuminata MC 18 1402 99421

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km NE of Perugia (166134 inhabitants)
33 Km N of Foligno (57155 inhabitants)
70 Km SW of Fano (60888 inhabitants)
73 Km E of Arezzo (99543 inhabitants)
74 Km S of Pesaro (94582 inhabitants)
75 Km SW of Ancona (100861 inhabitants)
77 Km N of Terni (111501 inhabitants)
91 Km S of Rimini (147750 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 0.6 2018-12-08
06:55:56
43.25 12.73 10 2018-12-08
07:16:16
Sala Sismica INGV-Roma 63763311
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-12-08 06:55:56 ± 0.07
Latitude 43.25 ± 0.00
Longitude 12.73 ± 0.01
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 63763311

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 476
Semi-minor axis of confidence ellipse (meter) 154
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 61
Circular confidence region, given by single value of horizontal uncertainty (meter) 480
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 64
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.33725
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 11
Magnitude information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 63763311
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-12-08 07:16:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.FDMO.HHN. 2018-12-08T06:56:09.36 0.6 undecidable manual S 130 0.3372 50 0.35 44
IV.ATVO.HHZ. 2018-12-08T06:56:07.00 0.6 undecidable manual S 298 0.2698 50 0 48
IV.CESI.HHZ. 2018-12-08T06:56:07.39 0.3 undecidable manual S 153 0.2788 50 0.12 71
IV.PIEI.HHZ. 2018-12-08T06:56:07.91 0.6 undecidable manual S 333 0.3157 50 -0.45 44
IV.ASSB.HHZ. 2018-12-08T06:56:05.04 0.6 undecidable manual S 194 0.2185 112 -0.29 46
IV.MML1.EHZ. 2018-12-08T06:56:05.07 0.6 undecidable manual S 129 0.223 111 -0.43 45
IV.SNTG.HHZ. 2018-12-08T06:56:03.20 0.6 undecidable manual S 90 0.1502 120 0.24 47
IV.SSFR.HHZ. 2018-12-08T06:56:03.86 0.3 undecidable manual S 11 0.1853 115 -0.28 70
IV.PIEI.HHZ. 2018-12-08T06:56:03.68 0.1 undecidable manual P 333 0.3157 50 0.44 88
IV.FDMO.HHN. 2018-12-08T06:56:03.24 0.1 undecidable manual P 130 0.3372 50 -0.38 88
IV.MURB.HHZ. 2018-12-08T06:56:02.78 0.6 undecidable manual S 273 0.152 120 -0.24 47
IV.ATVO.HHZ. 2018-12-08T06:56:02.22 0.1 undecidable manual P 298 0.2698 50 -0.24 92
IV.CESI.HHZ. 2018-12-08T06:56:02.80 0.1 undecidable manual P 153 0.2788 50 0.19 93
IV.MML1.EHZ. 2018-12-08T06:56:01.29 0.1 undecidable manual P 129 0.223 111 -0.3 92
IV.SSFR.HHZ. 2018-12-08T06:56:01.05 0.1 undecidable manual P 11 0.1853 115 0.25 94
IV.ATCC.EHZ. 2018-12-08T06:56:01.61 0.3 undecidable manual S 225 0.0971 132 0.31 70
IV.ASSB.HHZ. 2018-12-08T06:56:01.34 0.3 undecidable manual P 194 0.2185 112 -0.15 71
IV.MURB.HHZ. 2018-12-08T06:56:00.32 1.0 undecidable manual P 273 0.152 120 0.16 24
IV.SNTG.HHZ. 2018-12-08T06:56:00.53 0.6 undecidable manual P 90 0.1502 120 0.4 46
IV.FOSV.EHZ. 2018-12-08T06:55:59.93 0.6 undecidable manual S 26 0.045 153 -0.12 49
IV.ATCC.EHZ. 2018-12-08T06:55:59.34 0.1 undecidable manual P 225 0.0971 132 0.18 97
IV.PE3.EHZ. 2018-12-08T06:55:58.01 3.0 undecidable manual P 0.01 0
IV.FOSV.EHZ. 2018-12-08T06:55:58.50 0.1 undecidable manual P 26 0.045 153 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FOSV.EHE. ML:0.8 0.0001102 0.22 AML other m 2018-12-08T06:56:00.04
IV.FOSV.EHN. ML:0.9 0.000145 0.14 AML other m 2018-12-08T06:56:00.11
IV.ATCC.EHN. ML:0.6 5.095095E-5 0.1408 AML other m 2018-12-08T06:56:01.81
IV.ATCC.EHE. ML:0.6 4.635387E-5 0.0576 AML other m 2018-12-08T06:56:01.73
IV.SNTG.HHN. ML:0.4 2.6998775E-5 1.44 AML other m 2018-12-08T06:56:02.84
IV.SNTG.HHE. ML:0.4 2.4959335E-5 0.4608 AML other m 2018-12-08T06:56:03.46
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