Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 02-01-2017 and time 10:37:17 (Italy) in region 1 km NE Accumoli (RI)

A magnitude ML 1.2 earthquake occured in region: 1 km NE Accumoli (RI), on

  • 02-01-2017 09:37:17 (UTC)
  • 02-01-2017 10:37:17 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7010, 13.2540 at 3 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 1 667 667
Amatrice RI 8 2657 3324
Arquata del Tronto AP 9 1178 4502
Cittareale RI 12 482 4984
Acquasanta Terme AP 15 2916 7900
Norcia PG 17 4957 12857
Montegallo AP 17 523 13380
Campotosto AQ 19 542 13922
Montereale AQ 20 2581 16503
Cascia PG 20 3217 19720

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km W of Teramo (54892 inhabitants)
41 Km NW of L'Aquila (69753 inhabitants)
52 Km E of Terni (111501 inhabitants)
53 Km SE of Foligno (57155 inhabitants)
76 Km W of Montesilvano (53738 inhabitants)
83 Km W of Pescara (121014 inhabitants)
84 Km SE of Perugia (166134 inhabitants)
84 Km W of Chieti (51815 inhabitants)
89 Km NE of Guidonia Montecelio (88673 inhabitants)
90 Km NE of Tivoli (56533 inhabitants)
99 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 1.2 2017-01-02
09:37:17		 42.7013 13.2542 3 2017-01-02
09:44:15		 Sala Sismica INGV-Roma 38295571
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-01-02 09:37:17 ± 0.17
Latitude 42.7013 ± 0.0072
Longitude 13.2542 ± 0.0135
Depth (km) 3 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 38295571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1250
Semi-minor axis of confidence ellipse (meter) 610
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 238
Circular confidence region, given by single value of horizontal uncertainty (meter) 1250.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 133
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.44
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.21494
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 38295571
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-01-02 09:44:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RM33.EHZ. 2017-01-02T09:37:26.58 3.0 undecidable manual S 189 21.5673 97 1.67 0
IV.T1219.EHZ. 2017-01-02T09:37:25.23 3.0 negative manual P -0.24 0
IV.MC2.EHZ. 2017-01-02T09:37:25.63 0.3 undecidable manual S 347 23.8539 96 -0.08 75
IV.NRCA.HHZ. 2017-01-02T09:37:24.00 0.6 undecidable manual S 322 18.5703 98 0.13 50
IV.T1241.EHZ. 2017-01-02T09:37:24.81 0.3 undecidable manual S 40 22.4553 97 -0.39 70
IV.T1216.EHZ. 2017-01-02T09:37:23.03 3.0 undecidable manual P 0.5 0
IV.T1245.HHZ. 2017-01-02T09:37:23.89 0.3 undecidable manual S 343 18.0708 98 0.2 73
IV.T1215.EHZ. 2017-01-02T09:37:23.94 3.0 positive manual P 0.06 0
IV.T1243.HHZ. 2017-01-02T09:37:23.89 0.6 undecidable manual S 92 15.873 100 0.95 38
IV.T1212.EHZ. 2017-01-02T09:37:22.40 3.0 negative manual P 1.56 0
IV.RM33.EHZ. 2017-01-02T09:37:22.75 0.3 undecidable manual P 189 21.5673 97 1.03 55
IV.MC2.EHZ. 2017-01-02T09:37:22.29 0.3 undecidable manual P 347 23.8539 96 0.11 74
IV.TERO.HHZ. 2017-01-02T09:37:21.42 3.0 undecidable manual P -0.94 0
IV.T1243.HHZ. 2017-01-02T09:37:21.29 0.3 undecidable manual P 92 15.873 100 0.71 64
IV.NRCA.HHZ. 2017-01-02T09:37:21.37 0.6 undecidable manual P 322 18.5703 98 0.25 48
IV.T1241.EHZ. 2017-01-02T09:37:21.82 0.1 undecidable manual P 40 22.4553 97 -0.07 100
IV.T1245.HHZ. 2017-01-02T09:37:21.27 0.3 undecidable manual P 343 18.0708 98 0.26 73
IV.SMA1.EHZ. 2017-01-02T09:37:20.88 0.1 undecidable manual S 140 10.2786 105 -0.17 100
IV.T1214.EHZ. 2017-01-02T09:37:20.23 0.3 undecidable manual S 330 7.4814 110 0.12 76
IV.SMA1.EHZ. 2017-01-02T09:37:18.78 0.1 undecidable manual P 140 10.2786 105 -0.71 86
IV.T1214.EHZ. 2017-01-02T09:37:18.08 0.1 undecidable manual P 330 7.4814 110 -0.87 81
IV.T1299.EHZ. 2017-01-02T09:37:18.56 0.6 negative manual P 163 7.7811 109 -0.45 47
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.2 0.00016 0.06 AML other m 2017-01-02T09:37:24.16
IV.NRCA.HHN. ML:1.2 0.000131 0.16 AML other m 2017-01-02T09:37:24.44
IV.T1245.HHN. ML:1.1 0.00011999999999999999 0.26 AML other m 2017-01-02T09:37:24.68
IV.T1245.HHE. ML:1.1 0.00011599999999999999 0.68 AML other m 2017-01-02T09:37:25.65
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