INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.0 on date 19-04-2017 and time 17:58:50 (Italy) in region N Preci (PG)

A magnitude ML 1.0 earthquake occured in region: N Preci (PG), on

  • 19-04-2017 15:58:50 (UTC)
  • 19-04-2017 17:58:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.88, 13.04 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
Preci PG 1 724 724
Visso MC 7 1107 1831
Sellano PG 9 1079 2910
Castelsantangelo sul Nera MC 9 281 3191
Ussita MC 11 444 3635
Norcia PG 11 4957 8592
Cerreto di Spoleto PG 12 1075 9667
Monte Cavallo MC 13 145 9812
Fiordimonte MC 18 202 10014
Pieve Torina MC 18 1458 11472
Cascia PG 18 3217 14689
Vallo di Nera PG 19 364 15053
Fiastra MC 20 559 15612
Bolognola MC 20 142 15754
Acquacanina MC 20 121 15875

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km E of Foligno (57155 inhabitants)
48 Km NE of Terni (111501 inhabitants)
59 Km E of Perugia (166134 inhabitants)
60 Km W of Teramo (54892 inhabitants)
66 Km NW of L'Aquila (69753 inhabitants)
90 Km SW of Ancona (100861 inhabitants)
92 Km NE of Viterbo (67173 inhabitants)
100 Km W of Montesilvano (53738 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 2017-04-19
15:58:50
42.88 13.04 ML 1.0 9 2017-04-19
16:48:49
Sala Sismica INGV-Roma 44100971
Best location and best magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-04-19 15:58:50 ± 0.18
Latitude 42.88 ± 0.00
Longitude 13.04 ± 0.01
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 44100971

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 520
Semi-minor axis of confidence ellipse (meter) 485
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 49
Circular confidence region, given by single value of horizontal uncertainty (meter) 520
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 159
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.21044
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.3
Num. used stations 5
Type of magnitude ML
Reference to an origin 44100971
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-04-19 16:48:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.EUCT.HNZ. 2017-04-19T16:00:33.99 3.0 undecidable manual Sg 7.68 0
IV.VOBA.HNZ. 2017-04-19T16:00:26.06 3.0 undecidable manual Sg 5.36 0
GU.RNCA.HHZ. 2017-04-19T15:59:30.72 3.0 positive manual Pn -6.35 0
IV.SARZ.HHZ. 2017-04-19T16:00:16.94 3.0 undecidable manual Sn -6.86 0
IV.NDIM.HNZ. 2017-04-19T15:59:20.92 3.0 negative manual Pn -6.94 0
IV.ORI.HHZ. 2017-04-19T15:59:56.18 3.0 positive manual Pg 10.3 0
IV.MFNL.SHZ. 2017-04-19T15:59:53.54 3.0 positive manual Pn -5.81 0
IV.VITU.HHZ. 2017-04-19T15:59:49.33 3.0 undecidable manual Sg -0.4 0
ST.GAGG.HHZ. 2017-04-19T15:59:39.50 3.0 undecidable manual Pn -3.07 0
IV.LIK.EHZ.01 2017-04-19T15:59:31.45 3.0 undecidable manual Sg 0.06 0
IV.MODR.HHZ. 2017-04-19T15:59:11.67 3.0 undecidable manual Pn -5.28 0
IV.MMO1.EHZ. 2017-04-19T15:58:55.66 0.3 undecidable manual P 86 0.2104 111 0.38 67
IV.FDMO.HHZ. 2017-04-19T15:58:54.13 0.1 undecidable manual P 13 0.1565 118 -0.06 97
IV.T1214.EHZ. 2017-04-19T15:58:54.48 0.1 undecidable manual P 135 0.1754 115 -0.08 96
IV.CESI.HHE. 2017-04-19T15:58:54.15 0.3 undecidable manual P 321 0.1565 118 -0.04 73
MN.AQU.HHZ. 2017-04-19T15:58:56.88 3.0 positive manual P -2.35 0
IV.T1245.HHZ. 2017-04-19T15:58:53.99 0.3 undecidable manual P 104 0.1115 126 0.65 63
IV.T1256.HNE. 2017-04-19T15:58:54.54 0.3 undecidable manual P 48 0.1835 114 -0.18 71
IV.NRCA.HNZ. 2017-04-19T15:58:52.72 0.3 undecidable manual P 133 0.0737 138 0.01 75
IV.T1219.EHZ. 2017-04-19T15:58:54.38 0.3 undecidable manual P 351 0.1736 115 -0.15 71
IV.T1216.EHZ. 2017-04-19T15:58:52.17 0.1 undecidable manual P 294 0.0171 168 0.06 100
IV.MC2.EHN. 2017-04-19T15:58:53.49 0.1 undecidable manual P 76 0.1124 126 0.14 96
IV.LNSS.HHZ. 2017-04-19T15:58:53.56 3.0 undecidable manual P 1.66 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.AQU.HHN. ML:2 0.000175 1.42 AML other m 2017-04-19T15:58:59.74
MN.AQU.HHE. ML:2.2 0.000279 0.1 AML other m 2017-04-19T15:58:59.54
MN.AQU.HLE. ML:2.1 0.0002525 0.08 AML other m 2017-04-19T15:58:59.54
IV.FDMO.HHE. ML:0.8 5.221329E-5 0.2176 AML other m 2017-04-19T15:58:57.43
IV.FDMO.HHN. ML:0.8 4.884528E-5 2.688 AML other m 2017-04-19T15:58:58.65
IV.NDIM.HNE. ML:4.1 0.00199 0.06 AML other m 2017-04-19T15:59:31.60
IV.NDIM.HNN. ML:3.8 0.0010155 0.08 AML other m 2017-04-19T15:59:31.60
IV.T1214.EHN. ML:1.2 0.000111810455 11.264 AML other m 2017-04-19T15:59:02.02
IV.T1214.HNE. ML:1.1 9.35232E-5 1.1008 AML other m 2017-04-19T15:58:56.35
IV.T1214.HNN. ML:1.2 0.000111316875 6.8992 AML other m 2017-04-19T15:59:01.91
IV.T1214.EHE. ML:1.6 0.00032142605 19.4304 AML other m 2017-04-19T15:58:57.25
IV.T1216.EHN. ML:0 8.61582E-5 0.3072 AML other m 2017-04-19T15:58:53.67
IV.T1216.EHE. ML:0 0.0001201776 2.176 AML other m 2017-04-19T15:58:52.58
IV.T1245.HNN. ML:1.2 0.0001967102 3.328 AML other m 2017-04-19T15:58:55.01
IV.T1245.HHE. ML:0.8 6.9987075E-5 2.9696 AML other m 2017-04-19T15:58:56.22
IV.T1245.HHN. ML:0.8 6.419492E-5 0.3328 AML other m 2017-04-19T15:58:56.15
IV.T1245.HNE. ML:1.1 0.00013592792 2.5088 AML other m 2017-04-19T15:58:57.32
IV.VITU.HNE. ML:3.4 0.000499 1.34 AML other m 2017-04-19T15:59:43.91
IV.VITU.HNN. ML:3.4 0.000502 1.4 AML other m 2017-04-19T16:00:04.72
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