Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 03-01-2017 and time 12:28:45 (Italy) in region 6 km NW Accumoli (RI)

A magnitude ML 1.5 earthquake occured in region: 6 km NW Accumoli (RI), on

  • 03-01-2017 11:28:45 (UTC)
  • 03-01-2017 12:28:45 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7430, 13.2140 at 2 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
Accumoli RI 6 667 667
Arquata del Tronto AP 8 1178 1845
Norcia PG 11 4957 6802
Amatrice RI 14 2657 9459
Cittareale RI 15 482 9941
Montegallo AP 15 523 10464
Acquasanta Terme AP 16 2916 13380
Cascia PG 17 3217 16597
Castelsantangelo sul Nera MC 18 281 16878
Montemonaco AP 20 604 17482

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km W of Teramo (54892 inhabitants)
46 Km NW of L'Aquila (69753 inhabitants)
48 Km SE of Foligno (57155 inhabitants)
51 Km E of Terni (111501 inhabitants)
79 Km SE of Perugia (166134 inhabitants)
81 Km W of Montesilvano (53738 inhabitants)
88 Km W of Pescara (121014 inhabitants)
90 Km W of Chieti (51815 inhabitants)
92 Km NE of Guidonia Montecelio (88673 inhabitants)
93 Km NE of Tivoli (56533 inhabitants)
98 Km E of Viterbo (67173 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 1.5 2017-01-03
11:28:45		 42.7427 13.2138 2 2017-01-03
11:35:27		 Sala Sismica INGV-Roma 38397201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-01-03 11:28:45 ± 0.21
Latitude 42.7427 ± 0.0072
Longitude 13.2138 ± 0.0122
Depth (km) 2 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 38397201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 999
Semi-minor axis of confidence ellipse (meter) 274
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 71
Circular confidence region, given by single value of horizontal uncertainty (meter) 1000.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 96
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.51
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.19605
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 38397201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-01-03 11:35:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.T1219.EHZ. 2017-01-03T11:28:57.35 3.0 undecidable manual S -1.53 0
IV.MMO1.EHZ. 2017-01-03T11:28:54.03 3.0 undecidable manual S 19.6692 1.74 0
IV.T1241.EHZ. 2017-01-03T11:28:53.73 1.0 undecidable manual S 54 21.7671 96 0.73 20
IV.SMA1.EHZ. 2017-01-03T11:28:53.69 3.0 undecidable manual S 141 15.873 98 2.69 0
IV.TERO.HHZ. 2017-01-03T11:28:53.30 3.0 undecidable manual S -0.29 0
IV.MC2.EHZ. 2017-01-03T11:28:52.65 0.1 undecidable manual S 354 18.87 97 0.64 83
IV.T1243.HHZ. 2017-01-03T11:28:51.12 0.1 undecidable manual S 105 19.7691 97 -1.22 64
IV.MMO1.EHZ. 2017-01-03T11:28:51.37 3.0 undecidable manual P 19.6692 1.98 0
IV.T1241.EHZ. 2017-01-03T11:28:51.24 0.3 undecidable manual P 54 21.7671 96 1.44 42
IV.FDMO.HHZ. 2017-01-03T11:28:51.41 3.0 negative manual P 0.09 0
IV.RM33.EHZ. 2017-01-03T11:28:50.29 3.0 positive manual P 1.45 0
IV.LNSS.HHZ. 2017-01-03T11:28:49.36 3.0 negative manual P 0.4 0
IV.NRCA.HHZ. 2017-01-03T11:28:49.52 0.1 undecidable manual S 321 12.9759 100 -0.46 90
IV.T1218.EHZ. 2017-01-03T11:28:49.75 0.1 undecidable manual S 225 11.3775 101 0.29 93
IV.T1243.HHZ. 2017-01-03T11:28:49.32 0.1 undecidable manual P 105 19.7691 97 -0.09 96
IV.T1245.HHZ. 2017-01-03T11:28:49.98 0.1 undecidable manual S 351 12.7761 100 0.04 98
IV.T1216.EHZ. 2017-01-03T11:28:49.39 3.0 undecidable manual P -0.38 0
IV.MC2.EHZ. 2017-01-03T11:28:48.96 0.1 undecidable manual P 354 18.87 97 -0.26 93
IV.T1299.EHZ. 2017-01-03T11:28:48.80 0.6 undecidable manual P 155 13.2756 100 0.68 41
IV.SMA1.EHZ. 2017-01-03T11:28:48.96 0.1 undecidable manual P 141 15.873 98 0.32 92
IV.T1218.EHZ. 2017-01-03T11:28:47.58 0.1 undecidable manual P 225 11.3775 101 -0.17 96
IV.T1245.HHZ. 2017-01-03T11:28:47.87 0.3 positive manual P 351 12.7761 100 -0.16 72
IV.T1212.EHZ. 2017-01-03T11:28:47.90 3.0 negative manual P -0.46 0
IV.NRCA.HHZ. 2017-01-03T11:28:47.64 0.1 undecidable manual P 321 12.9759 100 -0.42 91
IV.T1214.EHZ. 2017-01-03T11:28:46.51 0.1 undecidable manual S 347 1.8981 140 0.06 100
IV.T1214.EHZ. 2017-01-03T11:28:45.98 0.1 undecidable manual P 347 1.8981 140 -0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHN. ML:1.3 0.0001455 0.16 AML other m 2017-01-03T11:28:54.25
IV.LNSS.HHE. ML:1.2 0.0001285 0.38 AML other m 2017-01-03T11:28:54.48
IV.NRCA.HNE. ML:2.0 0.00131 0.14 AML other m 2017-01-03T11:28:49.90
IV.NRCA.HHE. ML:2.0 0.00135 0.14 AML other m 2017-01-03T11:28:49.90
IV.NRCA.HHN. ML:1.9 0.001105 0.14 AML other m 2017-01-03T11:28:49.67
IV.NRCA.HNN. ML:1.9 0.001038 0.14 AML other m 2017-01-03T11:28:49.74
IV.SMA1.EHE. ML:1.4 0.000307 0.44 AML other m 2017-01-03T11:28:54.39
IV.SMA1.EHN. ML:1.3 0.00020250000000000002 0.8 AML other m 2017-01-03T11:28:54.25
IV.T1218.EHE. ML:1.0 0.000155 0.16 AML other m 2017-01-03T11:28:50.29
IV.T1218.EHN. ML:1.2 0.00028649999999999997 1.56 AML other m 2017-01-03T11:28:51.07
IV.T1241.EHE. ML:1.2 0.0001135 1.2 AML other m 2017-01-03T11:28:54.25
IV.T1241.EHN. ML:1.4 0.000183 0.3 AML other m 2017-01-03T11:28:53.93
IV.T1245.HNN. ML:1.7 0.0007330000000000001 1.14 AML other m 2017-01-03T11:28:51.77
IV.T1245.HHN. ML:1.7 0.00065 0.66 AML other m 2017-01-03T11:28:51.53
IV.T1245.HNE. ML:1.7 0.0007205 0.18 AML other m 2017-01-03T11:28:50.77
IV.T1245.HHE. ML:1.7 0.000745 0.18 AML other m 2017-01-03T11:28:50.77
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download