Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 18-09-2017 and time 01:42:59 (Italy) in region 4 km NW Cagnano Amiterno (AQ)

A magnitude ML 1.5 earthquake occured in region: 4 km NW Cagnano Amiterno (AQ), on

  • 17-09-2017 23:42:59 (UTC)
  • 18-09-2017 01:42:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.4830, 13.1860 at 14 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
Cagnano Amiterno AQ 4 1369 1369
Borbona RI 5 617 1986
Montereale AQ 7 2581 4567
Posta RI 9 694 5261
Barete AQ 9 737 5998
Capitignano AQ 10 665 6663
Pizzoli AQ 10 4326 10989
Antrodoco RI 11 2588 13577
Micigliano RI 11 127 13704
Borgo Velino RI 13 972 14676
Scoppito AQ 14 3727 18403
Cittareale RI 15 482 18885
Castel Sant'Angelo RI 16 1308 20193
Campotosto AQ 17 542 20735
Amatrice RI 18 2657 23392

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km NW of L'Aquila (69753 inhabitants)
45 Km E of Terni (111501 inhabitants)
47 Km W of Teramo (54892 inhabitants)
66 Km NE of Guidonia Montecelio (88673 inhabitants)
66 Km SE of Foligno (57155 inhabitants)
66 Km NE of Tivoli (56533 inhabitants)
79 Km W of Montesilvano (53738 inhabitants)
82 Km W of Chieti (51815 inhabitants)
84 Km W of Pescara (121014 inhabitants)
87 Km NE of Roma (2864731 inhabitants)
89 Km E of Viterbo (67173 inhabitants)
95 Km NE of Velletri (53303 inhabitants)
95 Km SE of Perugia (166134 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 2017-09-17
23:42:59		 42.4832 13.1858 14 2017-09-18
00:12:40		 Sala Sismica INGV-Roma 50199881
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-09-17 23:42:59 ± 0.07
Latitude 42.4832 ± 0.0027
Longitude 13.1858 ± 0.0049
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 50199881

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 379
Semi-minor axis of confidence ellipse (meter) 99
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 281
Circular confidence region, given by single value of horizontal uncertainty (meter) 380.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 94
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.03327
Epicentral distance of station farthest from the epicenter (degree) 0.42808
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 50199881
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-09-18 00:12:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MC2.EHZ. 2017-09-17T23:43:15.49 0.3 undecidable manual S 0 47.5191 94 0.97 53
IV.TERO.HHZ. 2017-09-17T23:43:11.39 0.3 undecidable manual S 65 37.5291 96 -0.48 65
IV.T1214.EHZ. 2017-09-17T23:43:10.04 0.3 undecidable manual S 3 30.747 98 -0.03 72
IV.ARRO.EHZ. 2017-09-17T23:43:10.85 0.3 undecidable manual S 287 35.9418 96 -0.6 63
IV.MTRA.HNZ. 2017-09-17T23:43:10.83 0.3 undecidable manual S 29 34.8429 97 -0.34 67
IV.T1213.HNZ. 2017-09-17T23:43:09.01 0.3 undecidable manual S 350 27.2505 100 -0.15 71
IV.FIAM.HHE. 2017-09-17T23:43:08.39 0.1 undecidable manual S 193 24.5532 102 -0.04 97
IV.MC2.EHZ. 2017-09-17T23:43:08.16 0.3 undecidable manual P 0 47.5191 94 0.04 70
IV.SMA1.EHZ. 2017-09-17T23:43:07.57 0.1 undecidable manual S 37 20.3685 107 0.2 96
IV.T1218.EHZ. 2017-09-17T23:43:07.55 0.1 undecidable manual S 344 21.5673 105 -0.11 96
IV.TERO.HHZ. 2017-09-17T23:43:06.61 0.3 undecidable manual P 65 37.5291 96 0.03 72
IV.T1299.HNE. 2017-09-17T23:43:06.82 0.1 undecidable manual S 25 18.5703 110 -0.07 97
IV.LNSS.HHN. 2017-09-17T23:43:06.85 0.1 undecidable manual S 318 17.871 111 0.13 97
IV.ARRO.EHZ. 2017-09-17T23:43:06.31 0.3 undecidable manual P 287 35.9418 96 -0.03 72
IV.CAMP.HHE. 2017-09-17T23:43:06.88 0.3 undecidable manual S 72 19.1697 109 -0.17 72
IV.T1247.HHZ. 2017-09-17T23:43:05.03 0.1 undecidable manual S 117 10.2786 133 0.02 100
IV.T1214.EHZ. 2017-09-17T23:43:05.52 0.1 undecidable manual P 3 30.747 98 -0.02 97
IV.MTRA.HNZ. 2017-09-17T23:43:05.98 0.3 undecidable manual P 29 34.8429 97 -0.2 69
IV.SMA1.EHZ. 2017-09-17T23:43:04.14 0.1 undecidable manual P 37 20.3685 107 0.16 96
IV.T1213.HNZ. 2017-09-17T23:43:04.97 0.1 undecidable manual P 350 27.2505 100 -0.05 97
IV.T1218.EHZ. 2017-09-17T23:43:04.20 0.1 undecidable manual P 344 21.5673 105 0.05 98
IV.FIAM.HHE. 2017-09-17T23:43:04.62 0.1 undecidable manual P 193 24.5532 102 0.02 97
IV.RM33.EHZ. 2017-09-17T23:43:03.95 0.3 undecidable manual S 39 3.6963 161 -0.09 75
IV.CAMP.HHE. 2017-09-17T23:43:03.85 0.1 undecidable manual P 72 19.1697 109 0.05 98
IV.T1299.HNE. 2017-09-17T23:43:03.83 0.1 undecidable manual P 25 18.5703 110 0.12 97
IV.LNSS.HHN. 2017-09-17T23:43:03.76 0.1 undecidable manual P 318 17.871 111 0.15 96
IV.RM33.EHZ. 2017-09-17T23:43:02.23 0.1 undecidable manual P 39 3.6963 161 0.16 98
IV.T1247.HHZ. 2017-09-17T23:43:02.81 0.1 undecidable manual P 117 10.2786 133 0.19 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHE. ML:1.6 0.00054 0.26 AML other m 2017-09-17T23:43:04.29
IV.RM33.HNE. ML:1.6 0.0005645 0.12 AML other m 2017-09-17T23:43:04.29
IV.RM33.EHN. ML:1.4 0.000345 0.08 AML other m 2017-09-17T23:43:04.46
IV.RM33.HNN. ML:1.4 0.00034599999999999995 0.62 AML other m 2017-09-17T23:43:04.77
IV.T1247.HHE. ML:1.6 0.0003735 0.36 AML other m 2017-09-17T23:43:05.17
IV.T1247.HHN. ML:1.7 0.000502 0.1 AML other m 2017-09-17T23:43:06.36
IV.T1218.EHE. ML:1.3 0.000133 1.18 AML other m 2017-09-17T23:43:07.08
IV.T1218.EHN. ML:1.5 0.00021659999999999998 0.14 AML other m 2017-09-17T23:43:07.80
IV.SMA1.EHN. ML:1.5 0.00020500000000000002 1.52 AML other m 2017-09-17T23:43:07.83
IV.SMA1.EHE. ML:1.6 0.0002465 0.86 AML other m 2017-09-17T23:43:07.89
IV.TERO.HHN. ML:1.0 0.000041150000000000004 0.46 AML other m 2017-09-17T23:43:11.83
IV.TERO.HHE. ML:1.2 0.00005375 1.36 AML other m 2017-09-17T23:43:12.17
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