Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 18-09-2016 and time 21:23:41 (UTC) in region 7 km W Arquata del Tronto (AP)

A magnitude ML 2.0 earthquake occured in region: 7 km W Arquata del Tronto (AP), on

  • 18-09-2016 21:23:41 (UTC)
  • 18-09-2016 23:23:41 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8050, 13.2210 at 15 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
Arquata del Tronto AP 7 1178 1178
Montegallo AP 10 523 1701
Norcia PG 11 4957 6658
Castelsantangelo sul Nera MC 11 281 6939
Accumoli RI 12 667 7606
Montemonaco AP 14 604 8210
Acquasanta Terme AP 16 2916 11126
Preci PG 17 724 11850
Ussita MC 17 444 12294
Visso MC 18 1107 13401
Montefortino FM 18 1178 14579
Cascia PG 19 3217 17796

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km W of Teramo (54892 inhabitants)
45 Km E of Foligno (57155 inhabitants)
53 Km N of L'Aquila (69753 inhabitants)
54 Km NE of Terni (111501 inhabitants)
76 Km E of Perugia (166134 inhabitants)
83 Km W of Montesilvano (53738 inhabitants)
90 Km W of Pescara (121014 inhabitants)
93 Km NW of Chieti (51815 inhabitants)
94 Km S of Ancona (100861 inhabitants)
98 Km NE of Guidonia Montecelio (88673 inhabitants)
100 Km NE of Tivoli (56533 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 2.0 2016-09-18
21:23:41		 42.8053 13.221 15 2016-09-18
21:31:17		 Sala Sismica INGV-Roma 29206651
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-09-18 21:23:41 ± 0.07
Latitude 42.8053 ± 0.0027
Longitude 13.2210 ± 0.0049
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 29206651

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 416
Semi-minor axis of confidence ellipse (meter) 102
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 248
Circular confidence region, given by single value of horizontal uncertainty (meter) 420.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 65
Number of associated phases, regardless of their use for origin computation 57
Number of defining phases 40
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.74644
Number of stations at which the event was observed 36
Number of stations from which data was used for origin computation 22
Magnitude information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 23
Type of magnitude ML
Reference to an origin 29206651
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-09-18 21:31:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARVD.HHZ. 2016-09-18T21:24:07.99 3.0 undecidable manual S 82.8504 0.14 0
IV.EL6.EHZ. 2016-09-18T21:24:01.99 3.0 undecidable manual S 61.8936 0.39 0
IV.COR1.EHZ. 2016-09-18T21:23:59.09 3.0 positive manual P 1.01 0
IV.PIEI.HHZ. 2016-09-18T21:23:58.85 3.0 negative manual P 0.1 0
IV.OFFI.HHZ. 2016-09-18T21:23:57.48 3.0 undecidable manual S 69 40.4262 98 2.95 0
IV.ARVD.HHZ. 2016-09-18T21:23:55.97 3.0 negative manual P 82.8504 0.12 0
IV.SSFR.HHZ. 2016-09-18T21:23:55.57 3.0 negative manual P 0.05 0
IV.MURB.HHZ. 2016-09-18T21:23:55.15 3.0 negative manual P 0.2 0
IV.T1247.HHZ. 2016-09-18T21:23:54.73 0.3 undecidable manual S 171 40.8258 98 0.09 70
IV.VCEL.EHZ. 2016-09-18T21:23:53.53 3.0 positive manual P 0.25 0
IV.FOSV.EHZ. 2016-09-18T21:23:53.43 3.0 positive manual P 0.07 0
IV.TERO.HHZ. 2016-09-18T21:23:53.84 0.3 undecidable manual S 123 37.2294 99 0.17 69
IV.CESI.HHZ. 2016-09-18T21:23:53.30 0.6 undecidable manual S 311 33.9438 100 0.49 44
IV.ATCC.EHZ. 2016-09-18T21:23:52.52 3.0 undecidable manual P -0.29 0
IV.EL6.EHZ. 2016-09-18T21:23:52.25 3.0 undecidable manual P 61.8936 -0.09 0
IV.CAMP.HHZ. 2016-09-18T21:23:52.62 0.6 undecidable manual S 153 33.6441 100 -0.11 48
IV.CING.HHZ. 2016-09-18T21:23:52.46 3.0 negative manual P -0.64 0
IV.RM33.EHZ. 2016-09-18T21:23:52.72 0.6 undecidable manual S 181 32.8449 100 0.18 46
IV.CESX.HHZ. 2016-09-18T21:23:51.46 3.0 undecidable manual P 0.38 0
IV.FIAM.HHZ. 2016-09-18T21:23:51.81 3.0 positive manual P 0.22 0
IV.GUMA.HHZ. 2016-09-18T21:23:51.09 0.3 undecidable manual S 18 30.0477 102 -0.69 60
IV.T1215.EHZ. 2016-09-18T21:23:51.25 0.6 undecidable manual S 269 28.6491 103 -0.19 47
IV.SNTG.HHZ. 2016-09-18T21:23:51.50 3.0 positive manual P -0.07 0
XO.AM05.EHZ. 2016-09-18T21:23:50.21 0.6 undecidable manual S 29 21.867 110 0.52 45
IV.T1217.EHZ. 2016-09-18T21:23:50.75 0.6 undecidable manual S 246 25.752 105 0.07 48
IV.OFFI.HHZ. 2016-09-18T21:23:49.31 1.0 negative manual P 69 40.4262 98 0.41 22
IV.T1247.HHZ. 2016-09-18T21:23:49.06 0.6 undecidable manual P 171 40.8258 98 0.1 47
IV.GIGS.HHZ. 2016-09-18T21:23:49.46 1.0 undecidable manual P 144 48.5181 96 -0.67 20
IV.ARRO.EHZ. 2016-09-18T21:23:49.14 3.0 positive manual P 0.03 0
IV.T1243.HNZ. 2016-09-18T21:23:49.56 0.6 undecidable manual S 123 22.1556 109 -0.19 48
IV.TERO.HHZ. 2016-09-18T21:23:48.39 0.1 undecidable manual P 123 37.2294 99 -0.02 96
IV.T1216.EHZ. 2016-09-18T21:23:48.99 0.6 undecidable manual S 300 18.9699 114 0.03 49
IV.CESI.HHZ. 2016-09-18T21:23:48.04 1.0 negative manual P 311 33.9438 100 0.13 24
IV.T1204.EHZ. 2016-09-18T21:23:48.08 0.3 undecidable manual S 151 16.3725 120 -0.27 72
IV.T1241.HHZ. 2016-09-18T21:23:48.78 0.6 undecidable manual S 72 17.9709 116 0.04 49
IV.T1215.EHZ. 2016-09-18T21:23:47.10 0.1 undecidable manual P 269 28.6491 103 -0.01 97
IV.T1202.EHZ. 2016-09-18T21:23:47.30 0.3 undecidable manual S 178 11.2776 134 0.03 74
IV.FDMO.HHZ. 2016-09-18T21:23:47.09 1.0 undecidable manual P 337 27.8499 103 0.1 24
IV.MC2.EHZ. 2016-09-18T21:23:47.68 0.3 undecidable manual S 348 12.0768 131 0.27 72
IV.MMO1.HNZ. 2016-09-18T21:23:47.69 0.3 undecidable manual S 40 13.4754 127 -0.03 74
IV.CAMP.HHZ. 2016-09-18T21:23:47.74 0.1 undecidable manual P 153 33.6441 100 -0.12 95
IV.RM33.EHZ. 2016-09-18T21:23:47.39 0.1 undecidable manual P 181 32.8449 100 -0.36 90
IV.CSP1.EHZ. 2016-09-18T21:23:47.71 0.1 undecidable manual P 358 31.8459 101 0.13 95
IV.GUMA.HHZ. 2016-09-18T21:23:46.02 0.1 undecidable manual P 18 30.0477 102 -1.29 60
IV.T1243.HNZ. 2016-09-18T21:23:46.14 0.1 undecidable manual P 123 22.1556 109 0 98
XO.AM05.EHZ. 2016-09-18T21:23:46.54 0.1 undecidable manual P 29 21.867 110 0.43 91
IV.T1242.HNZ. 2016-09-18T21:23:46.01 0.3 undecidable manual S 333 2.997 166 -0.12 74
IV.T1217.EHZ. 2016-09-18T21:23:46.66 0.1 undecidable manual P 246 25.752 105 -0.02 97
IV.NRCA.HNZ. 2016-09-18T21:23:46.56 0.6 undecidable manual S 290 9.1797 141 -0.32 47
IV.T1204.EHZ. 2016-09-18T21:23:45.43 0.1 undecidable manual P 151 16.3725 120 0.1 97
IV.T1241.HHZ. 2016-09-18T21:23:45.65 0.1 undecidable manual P 72 17.9709 116 0.09 98
IV.T1216.EHZ. 2016-09-18T21:23:45.68 0.1 undecidable manual P 300 18.9699 114 -0.01 98
IV.MMO1.HNZ. 2016-09-18T21:23:45.21 0.1 positive manual P 40 13.4754 127 0.24 96
IV.T1242.HNZ. 2016-09-18T21:23:44.16 0.1 undecidable manual P 333 2.997 166 0.1 100
IV.NRCA.HNZ. 2016-09-18T21:23:44.46 0.1 undecidable manual P 290 9.1797 141 -0.03 100
IV.T1202.EHZ. 2016-09-18T21:23:44.80 0.1 undecidable manual P 178 11.2776 134 0.09 98
IV.MC2.EHZ. 2016-09-18T21:23:44.98 0.1 undecidable manual P 348 12.0768 131 0.19 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
XO.AM05.HNN. ML:1.9 0.0004505 0.1 AML other m 2016-09-18T21:23:50.32
XO.AM05.EHN. ML:2.5 0.00183 0.1 AML other m 2016-09-18T21:23:50.38
XO.AM05.HNE. ML:1.8 0.00034950000000000004 1.08 AML other m 2016-09-18T21:23:50.71
XO.AM05.EHE. ML:2.4 0.0014100000000000002 0.84 AML other m 2016-09-18T21:23:50.89
IV.ARRO.EHE. ML:1.9 0.00023449999999999998 0.18 AML other m 2016-09-18T21:23:57.08
IV.ARRO.EHN. ML:1.7 0.0001625 1.12 AML other m 2016-09-18T21:23:57.28
IV.ARVD.HHE. ML:1.5 0.00004225 1.14 AML other m 2016-09-18T21:24:10.00
IV.ARVD.HHN. ML:1.3 0.000028450000000000004 0.78 AML other m 2016-09-18T21:24:15.30
IV.ATCC.EHN. ML:1.5 0.00006475 1.36 AML other m 2016-09-18T21:24:12.84
IV.ATCC.EHE. ML:1.6 0.00007675 1.44 AML other m 2016-09-18T21:24:18.03
IV.CAMP.HHE. ML:2.0 0.00043599999999999997 0.24 AML other m 2016-09-18T21:23:52.74
IV.CAMP.HHN. ML:1.8 0.0002285 1.58 AML other m 2016-09-18T21:23:53.61
IV.CESI.HHN. ML:1.8 0.0002615 0.16 AML other m 2016-09-18T21:23:53.71
IV.CESI.HHE. ML:1.8 0.0002175 1.12 AML other m 2016-09-18T21:23:53.56
IV.CESX.HHN. ML:1.8 0.000133 0.52 AML other m 2016-09-18T21:24:00.71
IV.CESX.HHE. ML:1.8 0.0001375 0.84 AML other m 2016-09-18T21:24:01.79
IV.CING.HHE. ML:1.8 0.00011650000000000001 0.94 AML other m 2016-09-18T21:24:04.66
IV.CING.HHN. ML:1.9 0.00014649999999999998 0.24 AML other m 2016-09-18T21:24:04.38
IV.CSP1.EHE. ML:2.0 0.0004615 0.34 AML other m 2016-09-18T21:23:54.26
IV.CSP1.EHN. ML:2.1 0.00049544 1.14 AML other m 2016-09-18T21:23:53.49
IV.FDMO.HHN. ML:2.0 0.0004995 1.04 AML other m 2016-09-18T21:23:52.12
IV.FDMO.HHE. ML:1.9 0.0003865 0.22 AML other m 2016-09-18T21:23:52.38
IV.FIAM.HHN. ML:1.7 0.0001123 1.1 AML other m 2016-09-18T21:24:01.10
IV.FIAM.HHE. ML:1.8 0.0001136 1.1 AML other m 2016-09-18T21:24:03.23
IV.MURB.HHN. ML:1.9 0.00011 1.18 AML other m 2016-09-18T21:24:11.36
IV.MURB.HHE. ML:1.9 0.00011350000000000001 0.88 AML other m 2016-09-18T21:24:14.85
IV.NRCA.HHE. ML:3.2 0.0158 0.12 AML other m 2016-09-18T21:23:47.17
IV.NRCA.HNE. ML:3.2 0.0148 0.12 AML other m 2016-09-18T21:23:47.17
IV.NRCA.HNN. ML:3.2 0.0175 1 AML other m 2016-09-18T21:23:46.69
IV.NRCA.HHN. ML:3.3 0.018699999999999998 1 AML other m 2016-09-18T21:23:46.69
IV.OFFI.HHN. ML:2.4 0.0007970000000000001 0.72 AML other m 2016-09-18T21:23:58.48
IV.OFFI.HHE. ML:2.3 0.0006705 0.76 AML other m 2016-09-18T21:23:57.82
IV.PIEI.HHN. ML:1.4 0.00002325 1.36 AML other m 2016-09-18T21:24:15.84
IV.PIEI.HHE. ML:1.5 0.0000293 1.04 AML other m 2016-09-18T21:24:19.48
IV.RM33.EHE. ML:2.1 0.0005405 0.48 AML other m 2016-09-18T21:23:53.07
IV.RM33.EHN. ML:2.0 0.0004335 0.18 AML other m 2016-09-18T21:23:54.20
IV.SNTG.HHE. ML:1.5 0.00007125 0.36 AML other m 2016-09-18T21:24:02.29
IV.SNTG.HHN. ML:1.5 0.00006254999999999999 1.44 AML other m 2016-09-18T21:24:00.40
IV.SSFR.HHE. ML:1.9 0.00010600000000000002 0.22 AML other m 2016-09-18T21:24:13.32
IV.SSFR.HHN. ML:1.9 0.000121 0.22 AML other m 2016-09-18T21:24:09.62
IV.T1216.EHN. ML:2.3 0.0013850000000000002 0.22 AML other m 2016-09-18T21:23:49.00
IV.T1216.EHE. ML:2.0 0.000662 1.18 AML other m 2016-09-18T21:23:49.95
IV.T1241.HHE. ML:2.4 0.0019749999999999998 0.28 AML other m 2016-09-18T21:23:48.95
IV.T1241.HNN. ML:2.3 0.001305 0.34 AML other m 2016-09-18T21:23:48.80
IV.T1241.HHN. ML:2.2 0.0012749999999999999 0.34 AML other m 2016-09-18T21:23:48.80
IV.T1241.HNE. ML:2.5 0.0020800000000000003 0.28 AML other m 2016-09-18T21:23:49.09
IV.T1242.HNE. ML:2.4 0.002685 0.44 AML other m 2016-09-18T21:23:46.44
IV.T1242.HHE. ML:2.4 0.002665 0.46 AML other m 2016-09-18T21:23:46.22
IV.T1242.HNN. ML:2.6 0.00486 0.22 AML other m 2016-09-18T21:23:46.22
IV.T1242.HHN. ML:2.6 0.00484 0.22 AML other m 2016-09-18T21:23:46.11
IV.T1247.HHN. ML:2.2 0.0005105 0.18 AML other m 2016-09-18T21:23:57.20
IV.T1247.HHE. ML:2.2 0.0004815 1.34 AML other m 2016-09-18T21:23:56.65
IV.TERO.HHN. ML:2.1 0.00045499999999999995 0.2 AML other m 2016-09-18T21:23:54.68
IV.TERO.HHE. ML:2.0 0.000372 0.36 AML other m 2016-09-18T21:23:54.91
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