INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 0.8 on date 11-05-2018 and time 20:50:49 (Italy) in region 5 km N Nocera Umbra (PG)

A magnitude ML 0.8 earthquake occured in region: 5 km N Nocera Umbra (PG), on

  • 11-05-2018 18:50:49 (UTC)
  • 11-05-2018 20:50:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.16, 12.79 at 9 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
Nocera Umbra PG 5 5839 5839
Gualdo Tadino PG 8 15208 21047
Valtopina PG 11 1398 22445
Fiuminata MC 12 1402 23847
Sefro MC 13 422 24269
Valfabbrica PG 15 3389 27658
Fossato di Vico PG 16 2840 30498
Pioraco MC 16 1134 31632
Serravalle di Chienti MC 16 1070 32702
Esanatoglia MC 17 2034 34736
Assisi PG 17 28299 63035
Sigillo PG 20 2404 65439

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km NE of Foligno (57155 inhabitants)
33 Km E of Perugia (166134 inhabitants)
67 Km N of Terni (111501 inhabitants)
78 Km SW of Ancona (100861 inhabitants)
79 Km S of Fano (60888 inhabitants)
81 Km E of Arezzo (99543 inhabitants)
84 Km S of Pesaro (94582 inhabitants)
93 Km NW of Teramo (54892 inhabitants)
99 Km NE of Viterbo (67173 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 0.8 2018-05-11
18:50:49
43.16 12.79 9 2018-05-11
19:05:25
Sala Sismica INGV-Roma 56768091
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-05-11 18:50:49 ± 0.06
Latitude 43.16 ± 0.00
Longitude 12.79 ± 0.00
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 56768091

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 297
Semi-minor axis of confidence ellipse (meter) 235
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 200
Circular confidence region, given by single value of horizontal uncertainty (meter) 300
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 79
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.47844
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 12
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.4
Num. used stations 26
Type of magnitude ML
Reference to an origin 56768091
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-05-11 19:05:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.BRIS.HHZ. 2018-05-11T18:51:33.93 3.0 undecidable manual S 1.98 0
IV.LPEL.HHZ. 2018-05-11T18:51:17.22 3.0 undecidable manual P 0.46 0
IV.NARO.HHZ. 2018-05-11T18:51:07.08 0.3 undecidable manual S 341 0.4784 50 0.43 86
IV.APEC.HHZ. 2018-05-11T18:51:06.94 3.0 undecidable manual S -0.18 0
IV.PIEI.HHZ. 2018-05-11T18:51:05.06 0.3 undecidable manual S 334 0.4218 50 0.1 93
IV.MOMA.HHE. 2018-05-11T18:51:04.19 0.3 undecidable manual S 205 0.3885 50 0.22 91
IV.ATVO.HHZ. 2018-05-11T18:51:02.95 0.6 undecidable manual S 309 0.3597 50 -0.16 62
IV.EL6.EHZ. 2018-05-11T18:51:00.91 0.3 undecidable manual S 53 0.2842 105 0.13 95
IV.ATFO.HHZ. 2018-05-11T18:51:00.26 0.3 undecidable manual S 323 0.2635 106 0.23 93
IV.NARO.HHZ. 2018-05-11T18:50:59.33 0.6 undecidable manual P 341 0.4784 50 -0.05 62
IV.MURB.HHZ. 2018-05-11T18:50:58.73 0.3 undecidable manual S 299 0.2212 109 0.25 94
IV.T1220.EHZ. 2018-05-11T18:50:58.52 0.3 undecidable manual S 102 0.2221 109 0.03 98
IV.PIEI.HHZ. 2018-05-11T18:50:58.10 1.0 undecidable manual P 334 0.4218 50 -0.3 30
IV.MOMA.HHE. 2018-05-11T18:50:57.79 1.0 undecidable manual P 205 0.3885 50 -0.04 32
IV.CESI.HHZ. 2018-05-11T18:50:56.88 0.3 undecidable manual S 151 0.1727 114 0.14 97
IV.ATVO.HHZ. 2018-05-11T18:50:56.83 0.3 undecidable manual P 309 0.3597 50 -0.51 86
IV.EL6.EHZ. 2018-05-11T18:50:55.81 0.6 undecidable manual P 53 0.2842 105 -0.17 63
IV.FOSV.EHZ. 2018-05-11T18:50:55.50 0.3 undecidable manual S 351 0.1394 119 -0.08 99
IV.SNTG.HHZ. 2018-05-11T18:50:55.94 0.3 undecidable manual S 48 0.1466 118 0.13 98
IV.ATFO.HHZ. 2018-05-11T18:50:54.77 0.6 undecidable manual P 323 0.2635 106 -0.78 53
IV.ATCC.EHZ. 2018-05-11T18:50:54.83 0.3 undecidable manual S 284 0.1142 124 0.08 99
IV.MURB.HHZ. 2018-05-11T18:50:54.50 0.3 undecidable manual P 299 0.2212 109 -0.16 96
IV.T1220.EHZ. 2018-05-11T18:50:54.52 0.6 undecidable manual P 102 0.2221 109 -0.14 64
IV.SNTG.HHZ. 2018-05-11T18:50:53.13 0.3 undecidable manual P 48 0.1466 118 0.01 100
IV.CESI.HHZ. 2018-05-11T18:50:53.55 0.3 undecidable manual P 151 0.1727 114 -0.11 98
IV.ATCC.EHZ. 2018-05-11T18:50:52.59 0.3 undecidable manual P 284 0.1142 124 0.09 99
IV.FOSV.EHZ. 2018-05-11T18:50:52.90 0.3 undecidable manual P 351 0.1394 119 -0.09 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATCC.EHN. ML:1.2 0.0001714785 0.2176 AML other m 2018-05-11T18:50:55.07
IV.ATCC.EHE. ML:1.2 0.0001921047 0.0896 AML other m 2018-05-11T18:50:55.16
IV.FOSV.EHN. ML:1 9.502439E-5 0.2432 AML other m 2018-05-11T18:50:55.78
IV.FOSV.EHE. ML:0.9 6.9856515E-5 0.2048 AML other m 2018-05-11T18:50:55.76
IV.SNTG.HNE. ML:1.2 0.00015266194 0.7168 AML other m 2018-05-11T18:50:58.18
IV.SNTG.HHN. ML:0.3 2.190542E-5 0.1408 AML other m 2018-05-11T18:50:56.47
IV.SNTG.HHE. ML:0.4 2.651457E-5 0.2048 AML other m 2018-05-11T18:50:58.40
IV.CESI.HHE. ML:0.4 2.24286305E-5 0.1408 AML other m 2018-05-11T18:50:57.69
IV.CESI.HHN. ML:0.4 1.9539055E-5 0.1792 AML other m 2018-05-11T18:50:57.79
IV.MURB.HHN. ML:1.2 9.3717545E-5 0.2432 AML other m 2018-05-11T18:50:59.99
IV.MURB.HNE. ML:1.4 0.0001672062 0.2432 AML other m 2018-05-11T18:50:59.56
IV.MURB.HHE. ML:1.4 0.00014386655 0.2304 AML other m 2018-05-11T18:50:59.56
IV.T1220.EHE. ML:1.5 0.0001763783 0.256 AML other m 2018-05-11T18:50:59.74
IV.T1220.HNN. ML:1 6.695674E-5 0.2944 AML other m 2018-05-11T18:50:58.91
IV.T1220.EHN. ML:1.3 0.00011671982 0.3072 AML other m 2018-05-11T18:50:59.06
IV.T1220.HNE. ML:1.2 9.4551945E-5 0.2688 AML other m 2018-05-11T18:50:59.74
IV.ATFO.HHE. ML:0.8 3.666923E-5 0.2176 AML other m 2018-05-11T18:51:01.77
IV.ATFO.HHN. ML:0.8 2.9614585E-5 0.1792 AML other m 2018-05-11T18:51:01.86
IV.EL6.EHE. ML:0.6 1.9975735E-5 0.128 AML other m 2018-05-11T18:51:02.60
IV.EL6.EHN. ML:0.7 2.275081E-5 0.1792 AML other m 2018-05-11T18:51:01.18
IV.ATVO.HHE. ML:0.6 1.4362746E-5 0.2432 AML other m 2018-05-11T18:51:04.19
IV.ATVO.HHN. ML:0.5 9.120204E-6 0.192 AML other m 2018-05-11T18:51:03.19
IV.PIEI.HHE. ML:0.7 1.6291304E-5 0.1024 AML other m 2018-05-11T18:51:06.12
IV.PIEI.HHN. ML:0.5 8.0610155E-6 0.128 AML other m 2018-05-11T18:51:06.19
IV.NARO.HHN. ML:0.3 4.313008E-6 0.0896 AML other m 2018-05-11T18:51:08.27
IV.NARO.HHE. ML:0.3 5.4679785E-6 0.064 AML other m 2018-05-11T18:51:08.43
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