Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 07-03-2017 and time 02:33:36 (Italy) in region 5 km SW Accumoli (RI)

A magnitude ML 1.6 earthquake occured in region: 5 km SW Accumoli (RI), on

  • 07-03-2017 01:33:36 (UTC)
  • 07-03-2017 02:33:36 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6580, 13.2190 at 12 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 5 667 667
Cittareale RI 6 482 1149
Amatrice RI 7 2657 3806
Arquata del Tronto AP 14 1178 4984
Montereale AQ 15 2581 7565
Capitignano AQ 17 665 8230
Campotosto AQ 17 542 8772
Borbona RI 18 617 9389
Posta RI 18 694 10083
Cascia PG 18 3217 13300
Norcia PG 18 4957 18257

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km NW of L'Aquila (69753 inhabitants)
40 Km W of Teramo (54892 inhabitants)
48 Km E of Terni (111501 inhabitants)
54 Km SE of Foligno (57155 inhabitants)
78 Km W of Montesilvano (53738 inhabitants)
83 Km NE of Guidonia Montecelio (88673 inhabitants)
84 Km SE of Perugia (166134 inhabitants)
84 Km W of Pescara (121014 inhabitants)
84 Km NE of Tivoli (56533 inhabitants)
85 Km W of Chieti (51815 inhabitants)
95 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 1.6 2017-03-07
01:33:36		 42.6577 13.2187 12 2017-03-07
01:40:28		 Sala Sismica INGV-Roma 42065031
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-03-07 01:33:36 ± 0.08
Latitude 42.6577 ± 0.0045
Longitude 13.2187 ± 0.0061
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 42065031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 431
Semi-minor axis of confidence ellipse (meter) 419
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 234
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) 98
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.25451
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 42065031
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-03-07 01:40:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.T1256.HHZ. 2017-03-07T01:33:51.91 3.0 undecidable manual S 1.62 0
IV.MMO1.EHZ. 2017-03-07T01:33:47.03 0.1 undecidable manual S 18 28.2495 93 0.16 94
IV.T1241.EHZ. 2017-03-07T01:33:46.56 0.1 undecidable manual S 38 28.0497 93 -0.26 92
IV.T1220.EHZ. 2017-03-07T01:33:46.62 3.0 positive manual P 0.2 0
IV.T1219.EHZ. 2017-03-07T01:33:46.22 3.0 positive manual P 0.4 0
IV.ARRO.EHZ. 2017-03-07T01:33:44.30 3.0 undecidable manual P -0.1 0
IV.T1212.EHZ. 2017-03-07T01:33:44.03 0.3 undecidable manual S 306 17.5713 100 -0.02 73
IV.T1211.EHZ. 2017-03-07T01:33:43.47 3.0 positive manual P -0.07 0
IV.T1222.EHZ. 2017-03-07T01:33:43.18 3.0 undecidable manual P -0.16 0
IV.RM33.EHZ. 2017-03-07T01:33:43.58 0.1 undecidable manual S 181 16.4724 103 -0.18 96
IV.T1215.EHZ. 2017-03-07T01:33:43.46 3.0 positive manual P -0.06 0
IV.GIGS.HHZ. 2017-03-07T01:33:43.17 3.0 undecidable manual P -0.69 0
IV.T1256.HHZ. 2017-03-07T01:33:43.60 3.0 positive manual P -0.71 0
IV.T1216.EHZ. 2017-03-07T01:33:43.33 3.0 negative manual P 0.22 0
IV.T1247.HHZ. 2017-03-07T01:33:42.17 3.0 undecidable manual P 0.1 0
IV.T1241.EHZ. 2017-03-07T01:33:42.56 0.1 positive manual P 38 28.0497 93 -0.06 96
IV.SMA1.EHZ. 2017-03-07T01:33:42.18 0.1 undecidable manual S 108 9.9789 126 0 100
IV.MMO1.EHZ. 2017-03-07T01:33:42.66 0.1 undecidable manual P 18 28.2495 93 0.01 97
IV.MC2.EHZ. 2017-03-07T01:33:42.32 1.0 undecidable manual P 355 28.2495 93 -0.33 23
IV.T1217.EHZ. 2017-03-07T01:33:42.22 3.0 positive manual P 0.02 0
IV.T1212.EHZ. 2017-03-07T01:33:41.23 0.3 positive manual P 306 17.5713 100 0.21 71
IV.T1218.EHZ. 2017-03-07T01:33:41.54 0.3 undecidable manual S 279 8.5803 133 -0.34 69
IV.T1214.EHZ. 2017-03-07T01:33:40.38 0.3 negative manual P 356 11.3775 120 0.27 71
IV.RM33.EHZ. 2017-03-07T01:33:40.97 0.6 undecidable manual P 181 16.4724 103 0.12 48
IV.SMA1.EHZ. 2017-03-07T01:33:40.07 0.1 positive manual P 108 9.9789 126 0.13 97
IV.T1299.EHZ. 2017-03-07T01:33:39.63 0.1 negative manual P 117 5.7942 146 0.14 98
IV.T1218.EHZ. 2017-03-07T01:33:39.98 1.0 undecidable manual P 279 8.5803 133 0.21 24
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHN. ML:1.7 0.00039400000000000004 1.1 AML other m 2017-03-07T01:33:44.93
IV.RM33.EHE. ML:1.6 0.00035 0.42 AML other m 2017-03-07T01:33:44.39
IV.SMA1.EHN. ML:2.2 0.0017150000000000002 0.82 AML other m 2017-03-07T01:33:42.43
IV.SMA1.EHE. ML:2.4 0.0029400000000000003 0.22 AML other m 2017-03-07T01:33:42.58
IV.T1212.HNN. ML:1.7 0.0003805 0.4 AML other m 2017-03-07T01:33:44.35
IV.T1212.EHE. ML:1.4 0.00019700000000000002 0.54 AML other m 2017-03-07T01:33:44.12
IV.T1212.HNE. ML:1.5 0.000262 0.54 AML other m 2017-03-07T01:33:44.39
IV.T1212.EHN. ML:1.7 0.0003825 0.38 AML other m 2017-03-07T01:33:44.36
IV.T1214.HNE. ML:1.4 0.0002455 0.36 AML other m 2017-03-07T01:33:43.20
IV.T1214.EHN. ML:1.4 0.000251 0.56 AML other m 2017-03-07T01:33:43.65
IV.T1214.HNN. ML:1.4 0.000295 0.56 AML other m 2017-03-07T01:33:43.65
IV.T1214.EHE. ML:1.3 0.000223435 0.68 AML other m 2017-03-07T01:33:44.59
IV.T1218.EHE. ML:2.2 0.001735 0.4 AML other m 2017-03-07T01:33:42.01
IV.T1218.HNE. ML:2.2 0.0017850000000000001 0.4 AML other m 2017-03-07T01:33:42.01
IV.T1218.HNN. ML:2.2 0.00177 0.3 AML other m 2017-03-07T01:33:42.15
IV.T1218.EHN. ML:2.2 0.001815 0.3 AML other m 2017-03-07T01:33:42.15
IV.T1247.HHE. ML:1.5 0.000165 0.96 AML other m 2017-03-07T01:33:47.74
IV.T1247.HHN. ML:1.4 0.0001555 1.36 AML other m 2017-03-07T01:33:49.13
IV.T1256.HHN. ML:1.7 0.000175 0.28 AML other m 2017-03-07T01:33:53.37
IV.T1256.HHE. ML:1.7 0.000182 1.52 AML other m 2017-03-07T01:33:53.96
IV.T1299.EHN. ML:1.7 0.0006770000000000001 0.28 AML other m 2017-03-07T01:33:41.31
IV.T1299.HNN. ML:1.7 0.0006944999999999999 0.28 AML other m 2017-03-07T01:33:41.17
IV.T1299.EHE. ML:1.5 0.00040449999999999997 0.62 AML other m 2017-03-07T01:33:41.78
IV.T1299.HNE. ML:1.5 0.00042449999999999996 0.48 AML other m 2017-03-07T01:33:41.78
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