Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 26-10-2017 and time 07:54:48 (Italy) in region 2 km NE Preci (PG)

A magnitude ML 1.0 earthquake occured in region: 2 km NE Preci (PG), on

  • 26-10-2017 05:54:48 (UTC)
  • 26-10-2017 07:54:48 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8940, 13.0500 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.

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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 2 724 724
Visso MC 5 1107 1831
Castelsantangelo sul Nera MC 9 281 2112
Ussita MC 9 444 2556
Sellano PG 10 1079 3635
Norcia PG 12 4957 8592
Monte Cavallo MC 12 145 8737
Cerreto di Spoleto PG 14 1075 9812
Fiordimonte MC 16 202 10014
Pieve Torina MC 17 1458 11472
Fiastra MC 18 559 12031
Bolognola MC 18 142 12173
Acquacanina MC 18 121 12294
Pievebovigliana MC 19 866 13160
Cascia PG 20 3217 16377

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km E of Foligno (57155 inhabitants)
50 Km NE of Terni (111501 inhabitants)
59 Km E of Perugia (166134 inhabitants)
60 Km W of Teramo (54892 inhabitants)
67 Km NW of L'Aquila (69753 inhabitants)
89 Km SW of Ancona (100861 inhabitants)
94 Km NE of Viterbo (67173 inhabitants)
99 Km W of Montesilvano (53738 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100 		ML 1.0 2017-10-26
05:54:48		 42.8945 13.05 8 2017-10-26
06:05:56		 Sala Sismica INGV-Roma 51327041
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-10-26 05:54:48 ± 0.27
Latitude 42.8945 ± 0.0054
Longitude 13.0500 ± 0.0061
Depth (km) 8 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 51327041

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 618
Semi-minor axis of confidence ellipse (meter) 193
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 31
Circular confidence region, given by single value of horizontal uncertainty (meter) 620.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 115
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.22753
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 13
Type of magnitude ML
Reference to an origin 51327041
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-10-26 06:05:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EUCT.HNZ. 2017-10-26T05:56:30.97 3.0 undecidable manual Sn 0.84 0
IV.GMB.BHZ. 2017-10-26T05:55:57.84 3.0 positive manual Pg 6.3 0
IV.EUCT.HNZ. 2017-10-26T05:55:44.32 3.0 undecidable manual Pn 3.02 0
IV.ZONE.HHZ. 2017-10-26T05:55:42.07 3.0 undecidable manual Pn 2.15 0
IV.USI.HHZ. 2017-10-26T05:55:42.53 3.0 undecidable manual Pg 3.1 0
IV.LEOD.HNZ. 2017-10-26T05:55:35.69 3.0 positive manual Pn -0.99 0
IV.NDIM.HHZ. 2017-10-26T05:55:30.39 3.0 positive manual Pg 4.56 0
MN.TRI.HHZ. 2017-10-26T05:55:24.92 3.0 positive manual Pn -3.06 0
GU.GSCL.HHZ. 2017-10-26T05:55:22.50 3.0 undecidable manual Pn -0.39 0
IV.BRIS.HHZ. 2017-10-26T05:55:13.70 3.0 undecidable manual Pn 0.31 0
IV.CSP1.EHZ. 2017-10-26T05:54:57.00 1.0 undecidable manual S 30 25.2525 107 -0.59 22
IV.MMO1.EHZ. 2017-10-26T05:54:56.66 0.1 undecidable manual S 89 22.4553 109 -0.03 99
IV.ARVD.HHZ. 2017-10-26T05:54:55.37 3.0 negative manual P -2.71 0
IV.T1214.EHZ. 2017-10-26T05:54:55.09 0.1 undecidable manual S 139 19.7691 112 -0.71 83
IV.T1221.EHZ. 2017-10-26T05:54:54.77 0.1 undecidable manual S 257 16.9719 115 -0.12 98
IV.FDMO.HHZ. 2017-10-26T05:54:54.71 0.3 undecidable manual S 11 16.0728 116 0.09 74
IV.CESI.HHZ. 2017-10-26T05:54:54.91 0.3 undecidable manual S 316 16.9719 115 -0.01 75
IV.RMP.HHZ. 2017-10-26T05:54:54.90 3.0 positive manual P -3.98 0
IV.T1214.EHZ. 2017-10-26T05:54:53.37 0.1 undecidable manual P 139 19.7691 112 0.69 83
IV.MMO1.EHZ. 2017-10-26T05:54:53.11 0.1 undecidable manual P 89 22.4553 109 -0.08 98
IV.PP3.EHZ. 2017-10-26T05:54:53.17 3.0 negative manual P -1.26 0
IV.CSP1.EHZ. 2017-10-26T05:54:53.65 0.3 undecidable manual P 30 25.2525 107 -0.06 73
IV.MC2.EHZ. 2017-10-26T05:54:53.69 3.0 undecidable manual S 0.93 0
IV.T1221.EHZ. 2017-10-26T05:54:52.10 0.1 undecidable manual P 257 16.9719 115 -0.05 99
IV.FDMO.HHZ. 2017-10-26T05:54:52.06 0.1 undecidable manual P 11 16.0728 116 0.07 99
IV.NRCA.HHZ. 2017-10-26T05:54:52.69 0.3 undecidable manual S 142 8.5803 133 0.24 73
IV.CESI.HHZ. 2017-10-26T05:54:52.14 0.1 undecidable manual P 316 16.9719 115 -0.03 100
IV.MC2.EHZ. 2017-10-26T05:54:51.83 3.0 undecidable manual P 0
IV.NRCA.HHZ. 2017-10-26T05:54:50.93 0.1 undecidable manual P 142 8.5803 133 0.19 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNE. ML:1.3 0.00029737124999999997 0.16 AML other m 2017-10-26T05:54:54.54
IV.NRCA.HHE. ML:1.3 0.00032214345 0.16 AML other m 2017-10-26T05:54:54.46
IV.NRCA.HHN. ML:1.3 0.00034187860000000004 0.08 AML other m 2017-10-26T05:54:54.13
IV.NRCA.HNN. ML:1.3 0.0003316753 0.1 AML other m 2017-10-26T05:54:54.12
IV.CSP1.EHE. ML:0.8 0.000040206535000000005 1.28 AML other m 2017-10-26T05:55:08.59
IV.CSP1.EHN. ML:0.5 0.00002042028 0.16 AML other m 2017-10-26T05:55:02.05
IV.FDMO.HHE. ML:0.7 0.000045330330000000004 0.16 AML other m 2017-10-26T05:54:55.21
IV.FDMO.HHN. ML:0.2 0.000016365794999999998 0.16 AML other m 2017-10-26T05:54:55.30
IV.T1221.HNE. ML:1.1 0.000106126925 0.816 AML other m 2017-10-26T05:54:58.31
IV.T1221.HNN. ML:0.9 0.000078958355 0.72 AML other m 2017-10-26T05:54:57.27
IV.T1214.HNN. ML:1.1 0.00009997574 0.368 AML other m 2017-10-26T05:54:56.02
IV.T1214.EHN. ML:0.8 0.000046352655 0.24 AML other m 2017-10-26T05:54:55.37
IV.T1214.EHE. ML:0.9 0.00006503397499999999 0.16 AML other m 2017-10-26T05:54:55.31
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
Waveforms Seismic signals in miniseed + resp format not available