Earthquake with magnitude of ML 0.1 on date 17-04-2017 and time 18:04:57 (Italy) in region 5 km E Norcia (PG)

A magnitude ML 0.1 earthquake occured in region: 5 km E Norcia (PG), on

  • 17-04-2017 16:04:57 (UTC)
  • 17-04-2017 18:04:57 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.797, 13.157 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
Norcia PG 5 4957 4957
Castelsantangelo sul Nera MC 11 281 5238
Arquata del Tronto AP 12 1178 6416
Preci PG 13 724 7140
Accumoli RI 14 667 7807
Cascia PG 15 3217 11024
Montegallo AP 15 523 11547
Visso MC 16 1107 12654
Ussita MC 17 444 13098
Montemonaco AP 18 604 13702
Cerreto di Spoleto PG 20 1075 14777
Cittareale RI 20 482 15259

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km E of Foligno (57155 inhabitants)
47 Km W of Teramo (54892 inhabitants)
49 Km NE of Terni (111501 inhabitants)
53 Km NW of L'Aquila (69753 inhabitants)
71 Km E of Perugia (166134 inhabitants)
87 Km W of Montesilvano (53738 inhabitants)
94 Km W of Pescara (121014 inhabitants)
95 Km NE of Guidonia Montecelio (88673 inhabitants)
96 Km E of Viterbo (67173 inhabitants)
96 Km SW of Ancona (100861 inhabitants)
97 Km NW of Chieti (51815 inhabitants)
97 Km NE of Tivoli (56533 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 0.1 2017-04-17
16:04:57
42.7972 13.157 9 2017-04-17
16:24:54
Sala Sismica INGV-Roma 44014271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-04-17 16:04:57 ± 0.17
Latitude 42.7972 ± 0.0054
Longitude 13.1570 ± 0.0061
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 44014271

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 572
Semi-minor axis of confidence ellipse (meter) 220
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 28
Circular confidence region, given by single value of horizontal uncertainty (meter) 570
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 178
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.20954
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.1

Field Value
Value 0.1
Uncertainty 0.3
Num. used stations 1
Type of magnitude ML
Reference to an origin 44014271
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-04-17 16:24:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
HL.KLV.HHZ. 2017-04-17T16:06:42.99 3.0 undecidable manual Pn -3.08 0
IV.AGLI.HHZ. 2017-04-17T16:06:32.03 3.0 undecidable manual Sg 15.19 0
IV.EPOZ.HHZ. 2017-04-17T16:06:18.63 3.0 undecidable manual Pg 16.5 0
IV.GMB.BHZ. 2017-04-17T16:06:12.26 3.0 undecidable manual Pg 13.94 0
IV.ALJA.HHZ. 2017-04-17T16:06:08.25 3.0 negative manual Pg 10.29 0
GU.CARD.HHZ. 2017-04-17T16:05:59.60 3.0 undecidable manual Sn -1.56 0
GU.CANO.HHZ. 2017-04-17T16:05:57.08 3.0 negative manual Pn 6.52 0
IV.LEOD.HNZ. 2017-04-17T16:05:53.90 3.0 undecidable manual Pn 6.72 0
BA.PZUN.HHZ. 2017-04-17T16:05:38.06 3.0 undecidable manual Pg 7.67 0
IV.APEC.HHZ. 2017-04-17T16:05:11.62 3.0 undecidable manual P -1.51 0
IV.SAMA.HHZ. 2017-04-17T16:05:11.25 3.0 undecidable manual S -3.86 0
IV.VVLD.HHZ. 2017-04-17T16:05:10.21 3.0 undecidable manual S -1.48 0
IV.T1241.EHZ. 2017-04-17T16:05:06.29 0.3 undecidable manual S 73 0.2095 111 -0.23 70
IV.T1219.EHZ. 2017-04-17T16:05:05.42 3.0 undecidable manual P 0.71 0
IV.T1216.EHZ. 2017-04-17T16:05:03.84 0.3 undecidable manual S 313 0.1376 120 -0.17 72
IV.MC2.EHE. 2017-04-17T16:05:03.60 0.3 undecidable manual S 12 0.1169 124 0.28 70
IV.T1241.EHZ. 2017-04-17T16:05:02.67 0.1 undecidable manual P 73 0.2095 111 -0.2 94
IV.T1216.EHZ. 2017-04-17T16:05:01.45 0.1 undecidable manual P 313 0.1376 120 0.02 98
IV.MC2.EHE. 2017-04-17T16:05:01.17 0.1 undecidable manual P 12 0.1169 124 0.14 96
IV.NRCA.HNZ. 2017-04-17T16:05:01.20 0.3 undecidable manual S 319 0.0477 149 -0.27 71
IV.T1214.EHZ. 2017-04-17T16:05:01.63 0.3 undecidable manual S 135 0.0531 146 0.05 75
IV.T1245.HNE. 2017-04-17T16:05:01.83 0.3 undecidable manual S 21 0.0639 141 0.02 75
IV.T1245.HNE. 2017-04-17T16:05:00.28 0.3 undecidable manual P 21 0.0639 141 0.13 73
IV.T1214.EHZ. 2017-04-17T16:05:00.18 0.1 undecidable manual P 135 0.0531 146 0.16 97
IV.NRCA.HNZ. 2017-04-17T16:04:59.98 0.1 undecidable manual P 319 0.0477 149 0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.T1214.EHN. ML:-0.1 1.60043485E-5 0.0896 AML other m 2017-04-17T16:05:01.82
IV.T1214.EHE. ML:0.4 3.784684E-5 0.2176 AML other m 2017-04-17T16:05:01.68
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download