Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 09-02-2017 and time 22:12:03 (Italy) in region 3 km SW Accumoli (RI)

A magnitude ML 1.8 earthquake occured in region: 3 km SW Accumoli (RI), on

  • 09-02-2017 21:12:03 (UTC)
  • 09-02-2017 22:12:03 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6770, 13.2240 at 13 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 3 667 667
Amatrice RI 7 2657 3324
Cittareale RI 8 482 3806
Arquata del Tronto AP 12 1178 4984
Norcia PG 17 4957 9941
Montereale AQ 17 2581 12522
Campotosto AQ 18 542 13064
Cascia PG 18 3217 16281
Capitignano AQ 18 665 16946
Acquasanta Terme AP 18 2916 19862
Borbona RI 20 617 20479
Posta RI 20 694 21173

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km NW of L'Aquila (69753 inhabitants)
39 Km W of Teramo (54892 inhabitants)
49 Km E of Terni (111501 inhabitants)
53 Km SE of Foligno (57155 inhabitants)
78 Km W of Montesilvano (53738 inhabitants)
83 Km SE of Perugia (166134 inhabitants)
84 Km W of Pescara (121014 inhabitants)
85 Km W of Chieti (51815 inhabitants)
86 Km NE of Guidonia Montecelio (88673 inhabitants)
87 Km NE of Tivoli (56533 inhabitants)
96 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 1.8 2017-02-09
21:12:03		 42.6768 13.2243 13 2017-02-09
21:19:39		 Sala Sismica INGV-Roma 40786581
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-02-09 21:12:03 ± 0.04
Latitude 42.6768 ± 0.0018
Longitude 13.2243 ± 0.0037
Depth (km) 13 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 40786581

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 287
Semi-minor axis of confidence ellipse (meter) 58
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 254
Circular confidence region, given by single value of horizontal uncertainty (meter) 290.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 82
Number of associated phases, regardless of their use for origin computation 45
Number of defining phases 45
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.06025
Epicentral distance of station farthest from the epicenter (degree) 0.65830
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 25
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 9
Type of magnitude ML
Reference to an origin 40786581
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-02-09 21:19:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2017-02-09T21:12:19.05 0.3 undecidable manual S 358 46.1205 94 0.52 64
IV.FIAM.HHZ. 2017-02-09T21:12:18.58 0.3 undecidable manual S 191 46.2204 94 0.02 69
IV.FDMO.HHZ. 2017-02-09T21:12:17.37 0.3 undecidable manual S 344 41.4252 95 0.08 70
IV.EL6.EHZ. 2017-02-09T21:12:16.53 0.6 positive manual P 352 73.0713 92 0.09 44
IV.GIGS.HHZ. 2017-02-09T21:12:16.14 0.3 undecidable manual S 131 37.7289 95 -0.17 69
IV.T1222.EHZ. 2017-02-09T21:12:15.24 0.3 undecidable manual S 207 34.1436 96 -0.12 71
IV.T1211.EHZ. 2017-02-09T21:12:15.43 0.3 undecidable manual S 242 34.1436 96 0.08 70
IV.T1215.EHZ. 2017-02-09T21:12:14.54 0.3 undecidable manual S 296 32.1456 97 -0.28 68
IV.TERO.HHZ. 2017-02-09T21:12:14.29 0.3 undecidable manual S 101 31.5462 97 -0.38 66
IV.T1247.HHZ. 2017-02-09T21:12:13.58 0.3 undecidable manual S 167 26.751 99 0.17 70
IV.FAGN.HHZ. 2017-02-09T21:12:13.52 1.0 positive manual P 147 54.3012 93 -0.02 23
IV.MC2.EHZ. 2017-02-09T21:12:13.88 0.3 undecidable manual S 354 26.1516 100 0.63 63
IV.T1216.EHZ. 2017-02-09T21:12:13.92 0.3 undecidable manual S 325 29.0487 98 -0.08 71
IV.MMO1.EHZ. 2017-02-09T21:12:13.15 0.3 undecidable manual S 19 26.0517 100 -0.07 71
IV.FIAM.HHZ. 2017-02-09T21:12:12.21 0.6 positive manual P 191 46.2204 94 -0.09 46
IV.CESI.HHZ. 2017-02-09T21:12:12.11 0.3 undecidable manual P 325 44.7219 94 0.03 70
IV.T1217.EHZ. 2017-02-09T21:12:12.49 0.3 undecidable manual S 279 24.1536 101 -0.24 70
IV.CSP1.EHZ. 2017-02-09T21:12:12.23 0.6 positive manual P 358 46.1205 94 -0.05 46
IV.GUMA.HHZ. 2017-02-09T21:12:12.27 0.3 positive manual P 12 43.7229 94 0.35 66
IV.NRCA.HHZ. 2017-02-09T21:12:11.11 0.3 undecidable manual S 333 19.5693 107 -0.42 67
IV.RM33.EHZ. 2017-02-09T21:12:11.37 0.3 undecidable manual S 182 18.6702 109 0.08 72
IV.FDMO.HHZ. 2017-02-09T21:12:11.41 0.3 positive manual P 344 41.4252 95 -0.16 68
IV.ARRO.EHZ. 2017-02-09T21:12:11.57 0.3 negative manual P 254 38.9277 95 0.38 65
IV.T1211.EHZ. 2017-02-09T21:12:10.35 1.0 positive manual P 242 34.1436 96 -0.09 24
IV.GIGS.HHZ. 2017-02-09T21:12:10.81 0.6 negative manual P 131 37.7289 95 -0.19 46
IV.T1215.EHZ. 2017-02-09T21:12:10.01 0.6 positive manual P 296 32.1456 97 -0.14 47
IV.T1222.EHZ. 2017-02-09T21:12:10.34 0.6 positive manual P 207 34.1436 96 -0.11 47
IV.LNSS.HHZ. 2017-02-09T21:12:10.97 0.3 undecidable manual S 241 17.0718 112 0.06 72
IV.T1216.EHZ. 2017-02-09T21:12:09.57 1.0 negative manual P 325 29.0487 98 -0.1 24
IV.MMO1.EHZ. 2017-02-09T21:12:09.13 0.6 positive manual P 19 26.0517 100 -0.08 47
IV.TERO.HHZ. 2017-02-09T21:12:09.87 0.1 positive manual P 101 31.5462 97 -0.18 92
IV.T1247.HHZ. 2017-02-09T21:12:09.38 0.1 positive manual P 167 26.751 99 0.06 95
IV.SMA1.EHZ. 2017-02-09T21:12:09.39 0.3 undecidable manual S 120 10.3785 131 0.01 74
IV.MC2.EHZ. 2017-02-09T21:12:09.39 0.3 undecidable manual P 354 26.1516 100 0.16 71
IV.T1217.EHZ. 2017-02-09T21:12:08.86 1.0 undecidable manual P 279 24.1536 101 -0.08 24
IV.T1218.EHZ. 2017-02-09T21:12:08.97 0.1 undecidable manual S 265 8.88 137 -0.13 98
IV.T1214.HNZ. 2017-02-09T21:12:08.99 0.1 undecidable manual S 352 9.2796 136 -0.17 96
IV.NRCA.HHZ. 2017-02-09T21:12:08.15 0.1 positive manual P 333 19.5693 107 -0.09 96
IV.RM33.EHZ. 2017-02-09T21:12:08.19 0.1 positive manual P 182 18.6702 109 0.09 96
IV.T1299.EHZ. 2017-02-09T21:12:08.68 0.1 undecidable manual S 135 6.6933 147 -0.04 100
IV.SMA1.EHZ. 2017-02-09T21:12:07.17 0.1 positive manual P 120 10.3785 131 0.17 96
IV.LNSS.HHZ. 2017-02-09T21:12:07.94 0.1 positive manual P 241 17.0718 112 0.05 97
IV.T1299.EHZ. 2017-02-09T21:12:06.79 0.1 undecidable manual P 135 6.6933 147 0.17 96
IV.T1218.EHZ. 2017-02-09T21:12:06.82 1.0 undecidable manual P 265 8.88 137 -0.02 25
IV.T1214.HNZ. 2017-02-09T21:12:06.91 1.0 undecidable manual P 352 9.2796 136 0.03 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GUMA.HHE. ML:2.0 0.0003055 0.5 AML other m 2017-02-09T21:12:18.74
IV.GUMA.HHN. ML:2.0 0.00034199999999999996 0.42 AML other m 2017-02-09T21:12:20.29
IV.LNSS.HHE. ML:1.9 0.0005885 0.4 AML other m 2017-02-09T21:12:11.09
IV.LNSS.HHN. ML:1.7 0.0004205 0.34 AML other m 2017-02-09T21:12:11.12
IV.RM33.EHN. ML:1.5 0.00021550000000000003 0.14 AML other m 2017-02-09T21:12:11.52
IV.RM33.EHE. ML:1.6 0.000253 0.14 AML other m 2017-02-09T21:12:11.87
IV.SMA1.EHN. ML:1.9 0.0009459999999999999 1.72 AML other m 2017-02-09T21:12:10.03
IV.SMA1.EHE. ML:1.7 0.0005955 0.26 AML other m 2017-02-09T21:12:10.17
IV.T1214.EHN. ML:2.0 0.001049 0.26 AML other m 2017-02-09T21:12:09.03
IV.T1214.HNN. ML:2.0 0.001102 0.26 AML other m 2017-02-09T21:12:09.03
IV.T1214.EHE. ML:1.9 0.0008584999999999999 0.14 AML other m 2017-02-09T21:12:09.80
IV.T1214.HNE. ML:1.9 0.0009065000000000001 0.14 AML other m 2017-02-09T21:12:09.80
IV.T1216.EHE. ML:1.6 0.00017 0.9 AML other m 2017-02-09T21:12:14.07
IV.T1216.EHN. ML:1.7 0.000254 0.52 AML other m 2017-02-09T21:12:14.45
IV.T1218.HNE. ML:1.7 0.0005875 0.48 AML other m 2017-02-09T21:12:09.32
IV.T1218.EHN. ML:2.2 0.001645 1.78 AML other m 2017-02-09T21:12:08.07
IV.T1218.HNN. ML:2.2 0.001665 1.78 AML other m 2017-02-09T21:12:08.07
IV.T1218.EHE. ML:1.7 0.0005505 1.4 AML other m 2017-02-09T21:12:09.99
IV.T1247.HHN. ML:1.6 0.000186 1.36 AML other m 2017-02-09T21:12:15.86
IV.T1247.HHE. ML:1.6 0.0002075 1.2 AML other m 2017-02-09T21:12:15.93
IV.T1299.EHN. ML:1.8 0.000801 0.28 AML other m 2017-02-09T21:12:08.72
IV.T1299.HNN. ML:1.8 0.0008100000000000001 0.26 AML other m 2017-02-09T21:12:08.73
IV.T1299.EHE. ML:1.6 0.0005045 0.32 AML other m 2017-02-09T21:12:08.72
IV.T1299.HNE. ML:1.6 0.000433 0.3 AML other m 2017-02-09T21:12:08.73
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