Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 1.5 on date 07-09-2016 and time 08:03:20 (Italy) in region 8 km NW Accumoli (RI)

A magnitude Md 1.5 earthquake occured in region: 8 km NW Accumoli (RI), on

  • 07-09-2016 06:03:20 (UTC)
  • 07-09-2016 08:03:20 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7550, 13.1920 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 8 667 667
Arquata del Tronto AP 9 1178 1845
Norcia PG 9 4957 6802
Cascia PG 15 3217 10019
Montegallo AP 15 523 10542
Cittareale RI 15 482 11024
Amatrice RI 16 2657 13681
Castelsantangelo sul Nera MC 16 281 13962
Acquasanta Terme AP 18 2916 16878
Preci PG 19 724 17602
Montemonaco AP 20 604 18206

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km W of Teramo (54892 inhabitants)
46 Km E of Foligno (57155 inhabitants)
48 Km NW of L'Aquila (69753 inhabitants)
49 Km E of Terni (111501 inhabitants)
76 Km SE of Perugia (166134 inhabitants)
83 Km W of Montesilvano (53738 inhabitants)
90 Km W of Pescara (121014 inhabitants)
92 Km W of Chieti (51815 inhabitants)
92 Km NE of Guidonia Montecelio (88673 inhabitants)
94 Km NE of Tivoli (56533 inhabitants)
97 Km E of Viterbo (67173 inhabitants)
100 Km S of Ancona (100861 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 		Md 1.5 2016-09-07
06:03:20		 42.7547 13.1922 3 2016-09-07
06:27:43		 Sala Sismica INGV-Roma 28464351
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-09-07 06:03:20 ± 0.29
Latitude 42.7547 ± 0.0090
Longitude 13.1922 ± 0.0098
Depth (km) 3 ± 5 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 28464351

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1036
Semi-minor axis of confidence ellipse (meter) 399
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 207
Circular confidence region, given by single value of horizontal uncertainty (meter) 1040.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 126
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.43
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.33005
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 8
Magnitude information

Md:1.5

Field Value
Value 1.5
Uncertainty 0.1
Num. used stations 7
Type of magnitude Md
Reference to an origin 28464351
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-09-07 06:27:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TERO.HHZ. 2016-09-07T06:03:33.02 0.6 undecidable manual S 113 36.6411 95 -0.61 44
IV.T1215.EHZ. 2016-09-07T06:03:30.13 0.3 undecidable manual S 281 26.8509 97 -0.13 76
IV.MMO1.EHZ. 2016-09-07T06:03:28.42 0.3 undecidable manual S 34 19.4694 100 0.71 66
IV.T1243.HHZ. 2016-09-07T06:03:28.80 0.3 undecidable manual S 107 21.867 99 0.26 75
IV.MC2.EHZ. 2016-09-07T06:03:27.98 1.0 undecidable manual S 359 17.3715 101 0.97 20
IV.FDMO.HHZ. 2016-09-07T06:03:27.99 3.0 undecidable manual S -3.54 0
IV.TERO.HHZ. 2016-09-07T06:03:27.80 0.3 undecidable manual P 113 36.6411 95 -0.43 70
IV.T1215.EHZ. 2016-09-07T06:03:26.23 0.3 undecidable manual P 281 26.8509 97 -0.06 78
IV.T1243.HHZ. 2016-09-07T06:03:25.56 0.1 undecidable manual P 107 21.867 99 0.27 100
IV.MMO1.EHZ. 2016-09-07T06:03:25.04 0.3 undecidable manual P 34 19.4694 100 0.22 76
IV.T1244.EHZ. 2016-09-07T06:03:23.75 0.6 undecidable manual S 88 8.5803 111 -0.32 51
IV.MC2.EHZ. 2016-09-07T06:03:23.80 1.0 undecidable manual P 359 17.3715 101 -0.61 23
IV.T1202.EHZ. 2016-09-07T06:03:23.07 0.1 undecidable manual P 155 6.2937 118 0.79 87
IV.T1242.HHZ. 2016-09-07T06:03:23.64 0.3 undecidable manual S 7 8.3805 112 -0.34 76
IV.T1242.HHZ. 2016-09-07T06:03:22.26 1.0 undecidable manual P 7 8.3805 112 -0.4 25
IV.T1244.EHZ. 2016-09-07T06:03:22.05 0.1 undecidable manual P 88 8.5803 111 -0.66 91
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 Download