Earthquake with magnitude of ML 2.0 on date 20-01-2017 and time 21:41:26 (UTC) in region 8 km W Arquata del Tronto (AP)

A magnitude ML 2.0 earthquake occured in region: 8 km W Arquata del Tronto (AP), on

  • 20-01-2017 21:41:26 (UTC)
  • 20-01-2017 22:41:26 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.78, 13.2 at 2 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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.

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 8 1178 1178
Norcia PG 9 4957 6135
Accumoli RI 10 667 6802
Montegallo AP 13 523 7325
Castelsantangelo sul Nera MC 13 281 7606
Montemonaco AP 17 604 8210
Cascia PG 17 3217 11427
Acquasanta Terme AP 17 2916 14343
Preci PG 17 724 15067
Amatrice RI 18 2657 17724
Cittareale RI 18 482 18206
Ussita MC 19 444 18650
Visso MC 19 1107 19757

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km W of Teramo (54892 inhabitants)
45 Km E of Foligno (57155 inhabitants)
50 Km NW of L'Aquila (69753 inhabitants)
52 Km E 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)
92 Km NW of Chieti (51815 inhabitants)
95 Km NE of Guidonia Montecelio (88673 inhabitants)
97 Km S of Ancona (100861 inhabitants)
97 Km NE of Tivoli (56533 inhabitants)
99 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
Rev 1000 ML 2.0 2017-01-20
21:41:26
42.78 13.2 2 2019-07-19
13:21:04
Bollettino Sismico Italiano INGV 63635431
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-01-20 21:41:26 ± 0.23
Latitude 42.78 ± 0.01
Longitude 13.20 ± 0.01
Depth (km) 2 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 63635431

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1330
Semi-minor axis of confidence ellipse (meter) 790
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 34
Circular confidence region, given by single value of horizontal uncertainty (meter) 1330
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 184
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 32
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.74554
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 27
Magnitude information

ML:2

Field Value
Value 2
Uncertainty 0.4
Num. used stations 66
Type of magnitude ML
Reference to an origin 63635431
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-12-04 14:39:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CING.HHZ. 2017-01-20T21:41:44.92 0.6 undecidable manual S -2.43 0.86
IV.EL6.EHZ. 2017-01-20T21:41:44.41 1.0 undecidable manual S -1.48 0.44
IV.SNTG.HHZ. 2017-01-20T21:41:43.90 1.0 undecidable manual S -0.41 0.44
IV.SRES.HHZ. 2017-01-20T21:41:43.27 0.1 undecidable manual P 223 0.7455 50 1.35 54
IV.MOMA.HHZ. 2017-01-20T21:41:41.22 0.6 undecidable manual S -1.06 0.87
IV.T1220.EHZ. 2017-01-20T21:41:40.21 0.6 undecidable manual S 1.22 0.87
IV.GUMA.HHZ. 2017-01-20T21:41:39.63 0.1 undecidable manual S 1.39 1.74
IV.OFFI.HHZ. 2017-01-20T21:41:39.74 0.1 undecidable manual S -1.86 1.74
IV.FAGN.HHZ. 2017-01-20T21:41:38.60 1.0 positive manual P 151 0.5855 50 -0.59 20
IV.FIAM.HHZ. 2017-01-20T21:41:37.50 0.3 negative manual P 187 0.5162 50 -0.5 63
IV.FDMO.HHZ. 2017-01-20T21:41:37.40 1.0 undecidable manual S 0.6 0.44
IV.ARRO.EHZ. 2017-01-20T21:41:37.99 0.1 undecidable manual S -1.75 1.74
IV.T1222.EHZ. 2017-01-20T21:41:36.02 0.3 positive manual P 198 0.3984 92 0.64 61
IV.CAMP.HHZ. 2017-01-20T21:41:35.07 0.6 undecidable manual S 148 0.2878 93 -2.54 10
IV.T1215.EHZ. 2017-01-20T21:41:35.34 0.6 undecidable manual S 275 0.2464 93 -0.69 41
IV.GIGS.HHZ. 2017-01-20T21:41:35.05 1.0 undecidable manual P 140 0.4254 92 -0.94 18
IV.T1217.EHZ. 2017-01-20T21:41:34.13 0.6 undecidable manual S 251 0.2113 94 -0.54 44
IV.T1247.HHZ. 2017-01-20T21:41:34.11 0.1 positive manual P 168 0.3462 92 -0.11 95
IV.CESI.HHZ. 2017-01-20T21:41:33.35 0.3 positive manual P 316 0.313 92 -0.14 71
IV.CAMP.HHZ. 2017-01-20T21:41:33.17 0.6 negative manual P 148 0.2878 93 0.25 47
IV.RM33.EHZ. 2017-01-20T21:41:32.02 0.6 negative manual P 178 0.2716 93 -0.55 43
IV.T1218.EHZ. 2017-01-20T21:41:31.53 0.3 undecidable manual S 210 0.1277 96 0.05 75
IV.T1212.EHZ. 2017-01-20T21:41:31.53 0.6 undecidable manual S 256 0.1205 96 0.35 47
IV.T1215.EHZ. 2017-01-20T21:41:31.78 0.6 negative manual P 275 0.2464 93 -0.23 47
IV.LNSS.HHZ. 2017-01-20T21:41:30.88 0.3 negative manual P 214 0.214 94 -0.41 68
IV.T1217.EHZ. 2017-01-20T21:41:30.94 1.0 undecidable manual P 251 0.2113 94 -0.29 23
IV.T1216.EHZ. 2017-01-20T21:41:30.80 0.6 positive manual P 309 0.1745 94 0.38 46
IV.SMA1.EHZ. 2017-01-20T21:41:30.54 0.3 undecidable manual P 147 0.1781 94 0.03 75
IV.T1299.EHZ. 2017-01-20T21:41:30.29 0.3 negative manual P 158 0.1574 95 0.25 71
IV.T1218.EHZ. 2017-01-20T21:41:29.44 0.1 positive manual P 210 0.1277 96 0.05 100
IV.T1212.EHZ. 2017-01-20T21:41:29.49 0.6 undecidable manual P 256 0.1205 96 0.28 48
IV.T1202.EHZ. 2017-01-20T21:41:29.00 0.6 undecidable manual P 168 0.0782 100 0.7 42
IV.MC2.EHZ. 2017-01-20T21:41:14.79 3.0 undecidable manual S 0
IV.MC2.EHZ. 2017-01-20T21:41:11.98 3.0 undecidable manual P 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.T1299.HNE. ML:2.7 0.005245 0.48 AML other m 2017-01-20T21:41:33.87
IV.T1299.EHE. ML:2.7 0.00533 0.48 AML other m 2017-01-20T21:41:33.87
IV.T1299.EHN. ML:2.7 0.005415 0.36 AML other m 2017-01-20T21:41:33.81
IV.T1299.HNN. ML:2.7 0.005435 0.36 AML other m 2017-01-20T21:41:33.81
IV.SMA1.EHN. ML:3.2 0.015 0.2 AML other m 2017-01-20T21:41:34.11
IV.SMA1.EHE. ML:3.4 0.0225 0.18 AML other m 2017-01-20T21:41:34.17
IV.CAMP.HHE. ML:2.1 0.0006675 1 AML other m 2017-01-20T21:41:35.59
IV.RM33.HNE. ML:2.8 0.003555 0.26 AML other m 2017-01-20T21:41:35.73
IV.RM33.EHE. ML:2.8 0.003635 0.26 AML other m 2017-01-20T21:41:35.73
IV.RM33.EHN. ML:2.8 0.003205 0.26 AML other m 2017-01-20T21:41:35.59
IV.RM33.HNN. ML:2.8 0.00339 0.26 AML other m 2017-01-20T21:41:35.59
IV.T1202.EHE. ML:2.3 0.003775 0.72 AML other m 2017-01-20T21:41:36.61
IV.T1218.EHN. ML:2.2 0.001905 0.2 AML other m 2017-01-20T21:41:36.79
IV.T1218.EHE. ML:1.8 0.000822 0.48 AML other m 2017-01-20T21:41:36.81
IV.T1218.HNE. ML:1.9 0.000975 0.48 AML other m 2017-01-20T21:41:36.81
IV.T1247.HHE. ML:2.6 0.00162 0.36 AML other m 2017-01-20T21:41:37.32
IV.T1247.HHN. ML:2.6 0.001665 0.32 AML other m 2017-01-20T21:41:37.24
IV.T1218.HNN. ML:2.2 0.00193 1.06 AML other m 2017-01-20T21:41:37.78
IV.T1202.EHN. ML:2.4 0.004225 0.92 AML other m 2017-01-20T21:41:37.74
IV.CAMP.HHN. ML:2.2 0.000849 0.72 AML other m 2017-01-20T21:41:37.28
IV.LNSS.HHN. ML:2.4 0.00177 0.12 AML other m 2017-01-20T21:41:38.36
IV.LNSS.HHE. ML:2.4 0.00165 1.22 AML other m 2017-01-20T21:41:39.04
IV.T1212.EHN. ML:1.6 0.000602 0.3 AML other m 2017-01-20T21:41:39.63
IV.T1212.HNN. ML:1.6 0.000586 1.24 AML other m 2017-01-20T21:41:40.63
IV.GIGS.HHE. ML:1.6 0.0001265 0.62 AML other m 2017-01-20T21:41:40.48
IV.T1212.HNE. ML:1.6 0.0005315 0.8 AML other m 2017-01-20T21:41:40.27
IV.T1212.EHE. ML:1.6 0.000483 0.8 AML other m 2017-01-20T21:41:40.67
IV.T1222.EHN. ML:2.2 0.0005265 0.34 AML other m 2017-01-20T21:41:40.78
IV.T1222.HNN. ML:2.2 0.000523 0.58 AML other m 2017-01-20T21:41:41.31
IV.T1222.EHE. ML:2.4 0.0007315 0.5 AML other m 2017-01-20T21:41:41.35
IV.T1222.HNE. ML:2.4 0.0007375 0.5 AML other m 2017-01-20T21:41:41.35
IV.T1217.EHN. ML:1.9 0.0005 0.1 AML other m 2017-01-20T21:41:41.70
IV.T1217.HNN. ML:1.9 0.0005165 0.1 AML other m 2017-01-20T21:41:41.70
IV.T1217.EHE. ML:1.9 0.0006205 0.06 AML other m 2017-01-20T21:41:41.76
IV.T1217.HNE. ML:1.9 0.000584 0.06 AML other m 2017-01-20T21:41:41.79
IV.GIGS.HHN. ML:1.6 0.0001185 0.38 AML other m 2017-01-20T21:41:42.35
IV.T1215.EHE. ML:1.6 0.0002385 0.86 AML other m 2017-01-20T21:41:43.51
IV.T1215.HNE. ML:1.6 0.0002555 0.84 AML other m 2017-01-20T21:41:43.93
IV.T1215.HNN. ML:1.6 0.0002345 0.14 AML other m 2017-01-20T21:41:43.76
IV.T1215.EHN. ML:1.7 0.000265 0.14 AML other m 2017-01-20T21:41:43.76
IV.ARRO.EHN. ML:2 0.000334 0.18 AML other m 2017-01-20T21:41:45.16
IV.FAGN.HHN. ML:2.3 0.00036 0.58 AML other m 2017-01-20T21:41:46.56
IV.FDMO.HHE. ML:1.3 0.00010135 1.3 AML other m 2017-01-20T21:41:46.93
IV.GUMA.HHE. ML:2.3 0.0010075 0.28 AML other m 2017-01-20T21:41:47.54
IV.ARRO.EHE. ML:1.9 0.0002725 0.2 AML other m 2017-01-20T21:41:48.06
IV.FDMO.HHN. ML:1.4 0.000142 0.78 AML other m 2017-01-20T21:41:48.16
IV.GUMA.HNN. ML:2.2 0.000828 0.68 AML other m 2017-01-20T21:41:48.19
IV.GUMA.HHN. ML:2.2 0.0007555 1.5 AML other m 2017-01-20T21:41:48.94
IV.CESI.HHN. ML:1.5 0.00014 0.98 AML other m 2017-01-20T21:41:48.85
IV.GUMA.HNE. ML:2.1 0.0005795 0.7 AML other m 2017-01-20T21:41:49.23
IV.CESI.HHE. ML:1.4 9.77E-5 0.72 AML other m 2017-01-20T21:41:50.44
IV.FAGN.HHE. ML:2.3 0.0003775 0.32 AML other m 2017-01-20T21:41:50.62
IV.MOMA.HHN. ML:2 0.0002785 0.18 AML other m 2017-01-20T21:41:51.46
IV.MOMA.HHE. ML:2.1 0.000343 0.32 AML other m 2017-01-20T21:41:51.44
IV.MOMA.HNE. ML:2.1 0.0003335 0.32 AML other m 2017-01-20T21:41:51.60
IV.T1220.EHE. ML:2.2 0.000581 0.56 AML other m 2017-01-20T21:41:51.94
IV.T1220.HNE. ML:2.2 0.000594 0.56 AML other m 2017-01-20T21:41:51.94
IV.MOMA.HNN. ML:2.1 0.0003325 0.84 AML other m 2017-01-20T21:41:52.04
IV.T1220.HNN. ML:2 0.0003855 1.26 AML other m 2017-01-20T21:41:52.14
IV.T1220.EHN. ML:2 0.000405 1.26 AML other m 2017-01-20T21:41:52.14
IV.SRES.HHN. ML:1.7 6.31E-5 0.42 AML other m 2017-01-20T21:41:55.91
IV.SNTG.HHE. ML:1.3 4.65E-5 0.88 AML other m 2017-01-20T21:41:56.98
IV.SRES.HHE. ML:1.7 5.93E-5 0.88 AML other m 2017-01-20T21:41:57.74
IV.CING.HHN. ML:1.7 9.885E-5 0.72 AML other m 2017-01-20T21:41:58.20
IV.EL6.EHE. ML:1.8 0.000134 0.16 AML other m 2017-01-20T21:41:58.66
IV.CING.HHE. ML:1.8 0.000118 0.24 AML other m 2017-01-20T21:41:58.72
IV.EL6.EHN. ML:1.8 0.0001475 0.12 AML other m 2017-01-20T21:41:58.91
IV.SNTG.HHN. ML:1.5 6.485E-5 0.7 AML other m 2017-01-20T21:42:00.53
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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Type Description Link
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