INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 0.6 on date 17-04-2017 and time 15:45:52 (Italy) in region 6 km W Nocera Umbra (PG)

A magnitude ML 0.6 earthquake occured in region: 6 km W Nocera Umbra (PG), on

  • 17-04-2017 13:45:52 (UTC)
  • 17-04-2017 15:45:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.12, 12.72 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
Nocera Umbra PG 6 5839 5839
Valtopina PG 8 1398 7237
Valfabbrica PG 10 3389 10626
Assisi PG 10 28299 38925
Gualdo Tadino PG 13 15208 54133
Bastia Umbra PG 15 21874 76007
Spello PG 15 8645 84652
Cannara PG 18 4305 88957
Fiuminata MC 19 1402 90359
Sefro MC 19 422 90781
Foligno PG 19 57155 147936
Fossato di Vico PG 19 2840 150776
Serravalle di Chienti MC 20 1070 151846

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km N of Foligno (57155 inhabitants)
27 Km E of Perugia (166134 inhabitants)
63 Km N of Terni (111501 inhabitants)
78 Km E of Arezzo (99543 inhabitants)
84 Km SW of Fano (60888 inhabitants)
85 Km SW of Ancona (100861 inhabitants)
89 Km S of Pesaro (94582 inhabitants)
93 Km NE of Viterbo (67173 inhabitants)
96 Km NW of Teramo (54892 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 Date and Time (UTC) Latitude Longitude Magnitude Depth (km) Published time (UTC) Author Location ID
Rev 100 2017-04-17
13:45:52
43.13 12.72 ML 0.6 10 2017-04-17
14:05:15
Sala Sismica INGV-Roma 44010051
Best location and best magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-04-17 13:45:52 ± 0.05
Latitude 43.13 ± 0.00
Longitude 12.72 ± 0.00
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 44010051

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 234
Semi-minor axis of confidence ellipse (meter) 230
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 266
Circular confidence region, given by single value of horizontal uncertainty (meter) 230
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 105
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.09
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.31386
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.2
Num. used stations 3
Type of magnitude ML
Reference to an origin 44010051
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-04-17 14:05:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PIPA.HHZ. 2017-04-17T13:47:33.35 3.0 undecidable manual Sn -1.63 0
IV.SARZ.HHZ. 2017-04-17T13:46:46.42 3.0 negative manual Pn 0.93 0
IV.MRGE.HHZ. 2017-04-17T13:47:16.33 3.0 undecidable manual Pg 9.03 0
ST.RONC.HNZ. 2017-04-17T13:46:55.85 3.0 undecidable manual Pg 8.8 0
IV.VARE.HHZ. 2017-04-17T13:46:55.63 3.0 negative manual Pn -0.3 0
IV.CAR1.HNZ. 2017-04-17T13:46:54.81 3.0 undecidable manual Pg 10.41 0
IV.SGRT.HHZ. 2017-04-17T13:46:50.94 3.0 undecidable manual Sn 3.25 0
IV.ZONE.HHZ. 2017-04-17T13:46:46.87 3.0 undecidable manual Pn 0.01 0
IV.CELI.HNZ. 2017-04-17T13:46:41.63 3.0 negative manual Pn -3.17 0
CR.STON.BHZ. 2017-04-17T13:46:38.60 3.0 negative manual Pn -0.18 0
OX.VARN.HHZ. 2017-04-17T13:46:35.29 3.0 negative manual Pn -7.31 0
GU.CARD.HHZ. 2017-04-17T13:46:31.01 3.0 positive manual Pg 4.76 0
IV.SGTA.HNZ. 2017-04-17T13:46:28.36 3.0 undecidable manual Pg 8.58 0
IV.GIUL.HHZ. 2017-04-17T13:46:07.66 3.0 undecidable manual S -5.03 0
IV.SSFR.HHZ. 2017-04-17T13:45:59.15 3.0 undecidable manual P 8 0.3139 50 -0.14 0
IV.T1219.HNN. 2017-04-17T13:45:58.01 3.0 undecidable manual P 108 0.2185 50 0.35 0
IV.SNTG.HHZ. 2017-04-17T13:45:57.41 0.1 undecidable manual P 51 0.2059 114 -0.02 98
IV.MURB.HHZ. 2017-04-17T13:45:56.72 3.0 undecidable manual P 314 0.1979 115 -0.55 0
IV.INTR.HHZ. 2017-04-17T13:45:58.73 3.0 positive manual P 0.16 0
IV.ATCC.EHZ. 2017-04-17T13:45:55.30 0.1 undecidable manual P 316 0.0836 138 0.12 98
IV.ASSB.HHZ. 2017-04-17T13:45:55.42 0.1 undecidable manual P 209 0.0944 135 0.08 98
IV.LAV9.HHZ. 2017-04-17T13:45:56.77 3.0 undecidable manual P -1.78 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASSB.HHE. ML:0.6 5.6897735E-5 0.1024 AML other m 2017-04-17T13:45:57.58
IV.ASSB.HHN. ML:0.8 6.8920815E-5 0.0832 AML other m 2017-04-17T13:45:57.63
IV.ATCC.EHE. ML:0.8 9.2028895E-5 0.1984 AML other m 2017-04-17T13:45:57.48
IV.ATCC.EHN. ML:0.4 3.338709E-5 0.1856 AML other m 2017-04-17T13:45:57.77
IV.SNTG.HHN. ML:0.4 1.310901E-5 0.1216 AML other m 2017-04-17T13:46:01.24
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