INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.4 on date 17-04-2017 and time 11:47:32 (Italy) in region 2 km N Ussita (MC)

A magnitude ML 1.4 earthquake occured in region: 2 km N Ussita (MC), on

  • 17-04-2017 09:47:32 (UTC)
  • 17-04-2017 11:47:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.96, 13.14 at 8 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
Ussita MC 2 444 444
Visso MC 5 1107 1551
Castelsantangelo sul Nera MC 7 281 1832
Bolognola MC 9 142 1974
Acquacanina MC 9 121 2095
Fiastra MC 9 559 2654
Fiordimonte MC 10 202 2856
Monte Cavallo MC 12 145 3001
Preci PG 12 724 3725
Pieve Torina MC 12 1458 5183
Pievebovigliana MC 12 866 6049
Muccia MC 16 915 6964
Sarnano MC 16 3264 10228
Montemonaco AP 17 604 10832
Montefortino FM 17 1178 12010
Amandola FM 18 3629 15639
Sellano PG 19 1079 16718
Norcia PG 19 4957 21675
Serravalle di Chienti MC 20 1070 22745
Cessapalombo MC 20 512 23257

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km E of Foligno (57155 inhabitants)
57 Km NW of Teramo (54892 inhabitants)
59 Km NE of Terni (111501 inhabitants)
63 Km E of Perugia (166134 inhabitants)
71 Km NW of L'Aquila (69753 inhabitants)
80 Km SW of Ancona (100861 inhabitants)
97 Km NW of Montesilvano (53738 inhabitants)
99 Km S of Fano (60888 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 1.4 2017-04-17
09:47:32
42.96 13.13 8 2017-04-17
09:55:11
Sala Sismica INGV-Roma 44003181
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-04-17 09:47:32 ± 0.09
Latitude 42.96 ± 0.00
Longitude 13.13 ± 0.00
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 44003181

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 230
Semi-minor axis of confidence ellipse (meter) 69
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 94
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) 86
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.21674
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.1
Num. used stations 12
Type of magnitude ML
Reference to an origin 44003181
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-04-17 09:55:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ARVD.HHZ. 2017-04-17T09:47:53.49 3.0 undecidable manual S 0.26 0
IV.T1211.EHZ. 2017-04-17T09:47:50.38 3.0 undecidable manual S -0.13 0
IV.T1212.EHZ. 2017-04-17T09:47:41.46 0.1 undecidable manual S 198 0.2167 109 0.11 95
IV.EL6.EHZ. 2017-04-17T09:47:40.39 3.0 positive manual P -0.34 0
IV.CESI.HHZ. 2017-04-17T09:47:40.10 0.3 undecidable manual S 286 0.1745 113 0.28 70
IV.ASSB.HHZ. 2017-04-17T09:47:40.24 3.0 negative manual P -0.2 0
IV.SNTG.HHZ. 2017-04-17T09:47:39.54 3.0 positive manual P -0.37 0
IV.T1219.EHZ. 2017-04-17T09:47:38.40 0.3 undecidable manual S 316 0.1358 118 -0.09 73
IV.T1217.EHZ. 2017-04-17T09:47:38.91 3.0 positive manual P -0.18 0
IV.T1241.EHZ. 2017-04-17T09:47:38.09 3.0 positive manual P -0.12 0
IV.T1218.EHZ. 2017-04-17T09:47:38.82 3.0 positive manual P -0.33 0
IV.T1216.EHZ. 2017-04-17T09:47:37.51 0.1 undecidable manual S 231 0.1079 124 -0.06 98
IV.T1212.EHZ. 2017-04-17T09:47:37.51 0.1 undecidable manual P 198 0.2167 109 -0.11 95
IV.T1214.EHZ. 2017-04-17T09:47:37.24 0.1 undecidable manual P 165 0.2059 110 -0.16 95
IV.GUMA.HHZ. 2017-04-17T09:47:37.22 3.0 undecidable manual P 0.33 0
IV.FDMO.HHZ. 2017-04-17T09:47:36.68 0.3 undecidable manual S 336 0.0854 131 -0.19 72
IV.CSP1.EHZ. 2017-04-17T09:47:36.17 0.1 undecidable manual P 21 0.143 117 0.07 98
IV.CESI.HHZ. 2017-04-17T09:47:36.78 0.1 undecidable manual P 286 0.1745 113 0.04 98
IV.T1256.HHZ. 2017-04-17T09:47:36.88 0.3 undecidable manual S 54 0.0818 132 0.1 73
IV.T1256.HHZ. 2017-04-17T09:47:35.07 0.1 undecidable manual P 54 0.0818 132 0.09 98
IV.T1219.EHZ. 2017-04-17T09:47:35.93 0.1 undecidable manual P 316 0.1358 118 -0.04 98
IV.T1216.EHZ. 2017-04-17T09:47:35.52 0.1 undecidable manual P 231 0.1079 124 0.08 98
IV.NRCA.HHZ. 2017-04-17T09:47:35.76 0.1 undecidable manual P 187 0.1259 120 0 99
IV.FEMA.HNZ. 2017-04-17T09:47:34.65 0.1 undecidable manual P 274 0.0621 140 -0.02 100
IV.FDMO.HHZ. 2017-04-17T09:47:34.96 0.1 undecidable manual P 336 0.0854 131 -0.08 98
IV.MC2.EHZ. 2017-04-17T09:47:34.68 0.1 undecidable manual P 140 0.0612 140 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASSB.HHE. ML:1.4 8.775E-5 0.36 AML other m 2017-04-17T09:47:46.24
IV.ASSB.HHN. ML:1.4 8.825E-5 0.64 AML other m 2017-04-17T09:47:46.58
IV.CESI.HHN. ML:1.5 0.0002705 0.22 AML other m 2017-04-17T09:47:41.20
IV.CESI.HHE. ML:1.3 0.000176 0.82 AML other m 2017-04-17T09:47:41.50
IV.CSP1.EHE. ML:1.3 0.000198 0.54 AML other m 2017-04-17T09:47:41.06
IV.CSP1.EHN. ML:1.3 0.0001935 0.7 AML other m 2017-04-17T09:47:41.89
IV.EL6.EHE. ML:1.5 0.00010595 1.22 AML other m 2017-04-17T09:47:48.83
IV.EL6.EHN. ML:1.4 9.215E-5 1.28 AML other m 2017-04-17T09:47:51.07
IV.FDMO.HHE. ML:1.5 0.0004355 0.16 AML other m 2017-04-17T09:47:37.33
IV.FDMO.HHN. ML:1.5 0.0005315 0.16 AML other m 2017-04-17T09:47:37.85
IV.NRCA.HHE. ML:1.6 0.0004645 0.58 AML other m 2017-04-17T09:47:38.68
IV.NRCA.HHN. ML:1.6 0.000457 0.14 AML other m 2017-04-17T09:47:39.15
IV.SNTG.HHN. ML:1.2 5.625E-5 0.44 AML other m 2017-04-17T09:47:46.44
IV.SNTG.HHE. ML:1.2 6.31E-5 0.5 AML other m 2017-04-17T09:47:47.94
IV.T1212.EHN. ML:1.5 0.00019 1.06 AML other m 2017-04-17T09:47:41.23
IV.T1212.EHE. ML:1.5 0.000189 1.14 AML other m 2017-04-17T09:47:42.74
IV.T1214.EHN. ML:1.3 0.0001474 0.2 AML other m 2017-04-17T09:47:42.08
IV.T1214.EHE. ML:1.3 0.00012385 0.72 AML other m 2017-04-17T09:47:42.49
IV.T1216.EHE. ML:1.4 0.0003355 0.82 AML other m 2017-04-17T09:47:38.20
IV.T1216.EHN. ML:1.7 0.0006065 0.38 AML other m 2017-04-17T09:47:38.08
IV.T1219.EHE. ML:1.4 0.0002765 0.3 AML other m 2017-04-17T09:47:39.12
IV.T1219.EHN. ML:1.4 0.0002435 0.34 AML other m 2017-04-17T09:47:39.18
IV.T1256.HHE. ML:1.3 0.000317 1.1 AML other m 2017-04-17T09:47:37.57
IV.T1256.HHN. ML:1.3 0.000316 1.08 AML other m 2017-04-17T09:47:37.57
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