Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.4 on date 28-10-2016 and time 07:27:50 (UTC) in region 1 km SW Preci (PG)

A magnitude ML 2.4 earthquake occured in region: 1 km SW Preci (PG), on

  • 28-10-2016 07:27:50 (UTC)
  • 28-10-2016 09:27:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8750, 13.0330 at 9 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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 1 724 724
Visso MC 8 1107 1831
Sellano PG 9 1079 2910
Castelsantangelo sul Nera MC 10 281 3191
Norcia PG 10 4957 8148
Cerreto di Spoleto PG 11 1075 9223
Ussita MC 12 444 9667
Monte Cavallo MC 14 145 9812
Cascia PG 17 3217 13029
Vallo di Nera PG 18 364 13393
Fiordimonte MC 19 202 13595
Pieve Torina MC 19 1458 15053
Poggiodomo PG 20 117 15170

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km E of Foligno (57155 inhabitants)
47 Km NE of Terni (111501 inhabitants)
58 Km E of Perugia (166134 inhabitants)
60 Km W of Teramo (54892 inhabitants)
65 Km NW of L'Aquila (69753 inhabitants)
91 Km NE of Viterbo (67173 inhabitants)
92 Km SW of Ancona (100861 inhabitants)
100 Km W of Montesilvano (53738 inhabitants)
100 Km N of Guidonia Montecelio (88673 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
Bulletin
Rev1000 		ML 2.4 2016-10-28
07:27:50		 42.8753 13.0327 9 2019-07-19
13:23:28		 Bollettino Sismico Italiano INGV 46292271
Reviewed
Rev100 		ML 2.3 2016-10-28
07:27:50		 42.8782 13.0327 10 2016-10-28
07:43:24		 Sala Sismica INGV-Roma 30791001
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-10-28 07:27:50 ± 0.07
Latitude 42.8753 ± 0.0036
Longitude 13.0327 ± 0.0049
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 46292271

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 427
Semi-minor axis of confidence ellipse (meter) 406
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 81
Circular confidence region, given by single value of horizontal uncertainty (meter) 430.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 78
Number of associated phases, regardless of their use for origin computation 49
Number of defining phases 49
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.01799
Epicentral distance of station farthest from the epicenter (degree) 0.51351
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 27
Magnitudes information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.4
Num. used stations 7
Type of magnitude ML
Reference to an origin 46292271
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-09-06 13:25:13

ML:2.3

Field Value
Value 2.3
Uncertainty 0.4
Num. used stations 9
Type of magnitude ML
Reference to an origin 30791001
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-10-28 07:43:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CAMP.HHE. 2016-10-28T07:28:06.10 0.6 undecidable manual S 141 48.618 50 -0.2 45
IV.T1246.HHN. 2016-10-28T07:28:06.30 0.3 undecidable manual S 131 49.5171 50 -0.26 67
IV.RM33.HNE. 2016-10-28T07:28:05.00 0.6 undecidable manual S 160 43.2234 50 0.12 47
IV.CESX.HHZ. 2016-10-28T07:28:05.60 0.3 undecidable manual S 231 46.8198 50 -0.25 68
IV.T1211.EHZ. 2016-10-28T07:28:04.20 0.6 undecidable manual S 201 40.626 50 0.01 48
IV.ARRO.EHZ. 2016-10-28T07:28:03.80 0.3 undecidable manual S 214 39.4272 50 -0.05 71
IV.T1243.HHZ. 2016-10-28T07:28:03.60 0.3 undecidable manual S 120 39.2274 50 -0.21 69
IV.GUMA.HNN. 2016-10-28T07:28:02.10 0.6 undecidable manual S 50 32.1456 50 0.17 47
IV.CING.HHN. 2016-10-28T07:28:02.16 0.1 undecidable manual P 13 56.9985 50 1.24 60
IV.LNSS.HHZ. 2016-10-28T07:28:01.10 0.3 undecidable manual S 179 30.2475 50 -0.31 69
IV.T1201.HNN. 2016-10-28T07:28:01.70 0.3 undecidable manual S 144 30.0477 50 0.35 68
IV.TERO.HHZ. 2016-10-28T07:28:00.11 0.3 undecidable manual P 121 54.3012 50 -0.39 65
IV.SNTG.HHE. 2016-10-28T07:28:00.31 0.3 positive manual P 350 42.8238 50 1.59 38
IV.EL6.EHE. 2016-10-28T07:28:00.29 0.6 undecidable manual P 6 50.7159 50 0.35 44
IV.T1244.EHZ. 2016-10-28T07:28:00.10 0.3 undecidable manual S 121 25.2525 110 0.29 70
IV.CSP1.EHE. 2016-10-28T07:27:59.00 0.3 undecidable manual S 30 27.75 108 -1.64 38
IV.RM33.HNE. 2016-10-28T07:27:59.45 1.0 positive manual P 160 43.2234 50 0.65 20
IV.T1246.HHN. 2016-10-28T07:27:59.35 0.3 undecidable manual P 131 49.5171 50 -0.42 65
IV.CAMP.HHE. 2016-10-28T07:27:59.24 0.3 undecidable manual P 141 48.618 50 -0.38 66
IV.ATCC.EHZ. 2016-10-28T07:27:59.19 0.3 undecidable manual P 317 46.8198 50 -0.16 69
IV.MMO1.EHN. 2016-10-28T07:27:59.20 0.3 undecidable manual S 84 24.0537 111 -0.23 71
IV.CESX.HHZ. 2016-10-28T07:27:59.18 0.3 undecidable manual P 231 46.8198 50 -0.17 69
IV.T1217.HNZ. 2016-10-28T07:27:58.10 0.3 undecidable manual S 205 19.869 115 0 75
IV.ARRO.EHZ. 2016-10-28T07:27:58.67 1.0 undecidable manual P 214 39.4272 50 0.47 22
IV.T1211.EHZ. 2016-10-28T07:27:58.65 0.6 undecidable manual P 201 40.626 50 0.26 46
IV.T1256.HHZ. 2016-10-28T07:27:58.50 0.6 undecidable manual S 47 21.3675 113 -0.07 49
IV.T1243.HHZ. 2016-10-28T07:27:57.87 0.1 negative manual P 120 39.2274 50 -0.31 90
IV.CSP1.EHE. 2016-10-28T07:27:57.18 0.1 positive manual P 30 27.75 108 0.83 77
IV.CESI.HHZ. 2016-10-28T07:27:57.20 0.3 undecidable manual S 324 17.7711 118 -0.23 72
IV.GUMA.HNN. 2016-10-28T07:27:56.99 1.0 undecidable manual P 50 32.1456 50 -0.1 24
IV.MC2.EHZ. 2016-10-28T07:27:56.40 0.3 undecidable manual S 72 13.2756 125 0.29 71
IV.FDMO.HHN. 2016-10-28T07:27:56.60 0.3 undecidable manual S 14 18.4704 117 -1.04 54
IV.LNSS.HHZ. 2016-10-28T07:27:56.54 0.3 undecidable manual P 179 30.2475 50 -0.25 70
IV.T1244.EHZ. 2016-10-28T07:27:56.10 0.3 undecidable manual P 121 25.2525 110 0.23 71
IV.T1215.EHZ. 2016-10-28T07:27:56.70 0.3 undecidable manual S 239 15.6732 121 -0.09 74
IV.T1201.HNN. 2016-10-28T07:27:56.77 0.1 negative manual P 144 30.0477 50 0.02 98
IV.MMO1.EHN. 2016-10-28T07:27:55.49 0.1 positive manual P 84 24.0537 111 -0.15 96
IV.T1256.HHZ. 2016-10-28T07:27:55.02 0.6 undecidable manual P 47 21.3675 113 -0.13 48
IV.FEMA.HNE. 2016-10-28T07:27:55.00 0.3 undecidable manual S 8 9.6792 134 -0.14 74
IV.CESI.HHZ. 2016-10-28T07:27:54.40 0.1 positive manual P 324 17.7711 118 -0.09 98
IV.T1215.EHZ. 2016-10-28T07:27:54.22 0.1 positive manual P 239 15.6732 121 0.1 98
IV.T1217.HNZ. 2016-10-28T07:27:54.99 0.3 undecidable manual P 205 19.869 115 0.11 73
IV.NRCA.HNZ. 2016-10-28T07:27:54.90 0.3 undecidable manual S 125 8.0808 139 0.15 74
IV.MC2.EHZ. 2016-10-28T07:27:54.16 0.3 undecidable manual P 72 13.2756 125 0.43 69
IV.FDMO.HHN. 2016-10-28T07:27:54.44 0.6 undecidable manual P 14 18.4704 117 -0.17 48
IV.T1216.EHZ. 2016-10-28T07:27:53.60 0.3 undecidable manual S 327 1.998 168 -0.17 74
IV.NRCA.HNZ. 2016-10-28T07:27:53.17 0.1 undecidable manual P 125 8.0808 139 0.23 97
IV.FEMA.HNE. 2016-10-28T07:27:53.30 0.3 undecidable manual P 8 9.6792 134 0.13 74
IV.T1216.EHZ. 2016-10-28T07:27:52.51 0.1 undecidable manual P 327 1.998 168 0.13 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSP1.EHE. ML:2.4 0.0014975000000000001 0.68 AML other m 2016-10-28T07:27:59.00
IV.CSP1.EHN. ML:2.7 0.002561 1.32 AML other m 2016-10-28T07:27:59.14
IV.FDMO.HHN. ML:2.8 0.00574 1.7 AML other m 2016-10-28T07:27:56.01
IV.FDMO.HHE. ML:2.8 0.005425 0.64 AML other m 2016-10-28T07:27:57.38
IV.LNSS.HHE. ML:1.8 0.00028199999999999997 0.14 AML other m 2016-10-28T07:28:01.52
IV.LNSS.HHN. ML:1.7 0.0002655 0.74 AML other m 2016-10-28T07:28:04.07
IV.NRCA.HHN. ML:2.8 0.00881 1.9 AML other m 2016-10-28T07:27:54.97
IV.NRCA.HNN. ML:2.7 0.0083 1.9 AML other m 2016-10-28T07:27:54.97
IV.NRCA.HHE. ML:2.6 0.00649 0.12 AML other m 2016-10-28T07:27:55.32
IV.NRCA.HNE. ML:2.6 0.00601 0.12 AML other m 2016-10-28T07:27:55.32
IV.T1211.HNE. ML:2.0 0.00029900000000000006 0.42 AML other m 2016-10-28T07:28:02.69
IV.T1211.HNN. ML:1.9 0.00025649999999999995 0.54 AML other m 2016-10-28T07:27:57.26
IV.T1215.HNE. ML:2.1 0.00125 1.56 AML other m 2016-10-28T07:27:57.05
IV.T1215.HNN. ML:2.4 0.0022750000000000005 0.08 AML other m 2016-10-28T07:27:56.83
IV.TERO.HHE. ML:1.8 0.0001595 0.46 AML other m 2016-10-28T07:28:08.11
IV.TERO.HHN. ML:1.8 0.0001625 0.72 AML other m 2016-10-28T07:28:09.45
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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