Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 26-08-2016 and time 20:16:47 (Italy) in region 3 km W Arquata del Tronto (AP)

A magnitude ML 2.1 earthquake occured in region: 3 km W Arquata del Tronto (AP), on

  • 26-08-2016 18:16:47 (UTC)
  • 26-08-2016 20:16:47 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7780, 13.2560 at 16 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.

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
Arquata del Tronto AP 3 1178 1178
Accumoli RI 9 667 1845
Montegallo AP 10 523 2368
Acquasanta Terme AP 13 2916 5284
Norcia PG 13 4957 10241
Montemonaco AP 15 604 10845
Castelsantangelo sul Nera MC 16 281 11126
Amatrice RI 17 2657 13783
Cittareale RI 19 482 14265
Montefortino FM 20 1178 15443

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km W of Teramo (54892 inhabitants)
49 Km N of L'Aquila (69753 inhabitants)
49 Km E of Foligno (57155 inhabitants)
55 Km E of Terni (111501 inhabitants)
79 Km W of Montesilvano (53738 inhabitants)
80 Km E of Perugia (166134 inhabitants)
86 Km W of Pescara (121014 inhabitants)
89 Km NW of Chieti (51815 inhabitants)
96 Km S of Ancona (100861 inhabitants)
97 Km NE of Guidonia Montecelio (88673 inhabitants)
98 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
Bulletin
Rev1000 		ML 2.1 2016-08-26
18:16:47		 42.7775 13.2558 16 2019-02-12
13:57:28		 Bollettino Sismico Italiano INGV 39065281
Reviewed
Rev100 		ML 2.1 2016-08-26
18:16:47		 42.7773 13.259 15 2016-08-26
18:39:07		 Sala Sismica INGV-Roma 27321421
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-08-26 18:16:47 ± 0.03
Latitude 42.7775 ± 0.0018
Longitude 13.2558 ± 0.0025
Depth (km) 16 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 39065281

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 199
Semi-minor axis of confidence ellipse (meter) 47
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 71
Circular confidence region, given by single value of horizontal uncertainty (meter) 200.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 57
Number of associated phases, regardless of their use for origin computation 79
Number of defining phases 79
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) 0.03687
Epicentral distance of station farthest from the epicenter (degree) 0.92180
Number of stations at which the event was observed 47
Number of stations from which data was used for origin computation 47
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 25
Type of magnitude ML
Reference to an origin 27321421
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-08-26 18:39:07

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 65
Type of magnitude ML
Reference to an origin 39065281
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-11-21 12:01:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ASSB.HHZ. 2016-08-26T18:17:05.80 0.6 undecidable manual S 301 56.6988 96 0.47 41
IV.FIAM.HHZ. 2016-08-26T18:17:05.70 0.1 undecidable manual S 191 57.5979 96 0.13 88
IV.PIEI.HHZ. 2016-08-26T18:17:05.11 0.1 undecidable manual P 326 102.3198 93 0.23 80
IV.CERT.HHZ. 2016-08-26T18:17:04.05 0.1 undecidable manual P 194 94.6386 93 0.36 79
IV.ATVO.HHZ. 2016-08-26T18:17:04.00 0.1 undecidable manual P 315 96.126 93 0.09 83
IV.INTR.HHZ. 2016-08-26T18:17:04.25 0.1 undecidable manual P 148 100.2219 93 -0.3 79
IV.GIGS.HHZ. 2016-08-26T18:17:02.10 0.6 undecidable manual S 144 44.3223 98 0.06 46
IV.ARVD.HHZ. 2016-08-26T18:17:02.09 0.1 undecidable manual P 342 83.8494 94 0.06 86
IV.ATFO.HHZ. 2016-08-26T18:17:02.38 0.1 undecidable manual P 320 85.7475 94 0.07 85
IV.ARRO.EHZ. 2016-08-26T18:17:02.60 0.6 undecidable manual S 241 45.621 98 0.22 44
IV.CESI.HHZ. 2016-08-26T18:17:00.50 0.6 undecidable manual S 312 38.1285 100 0.1 46
IV.T0110.HHZ. 2016-08-26T18:17:00.25 0.1 undecidable manual P 145 74.1702 94 -0.3 83
IV.TERO.HHZ. 2016-08-26T18:16:59.00 0.6 undecidable manual S 121 33.1446 102 -0.1 47
IV.FOSV.EHZ. 2016-08-26T18:16:59.92 0.1 undecidable manual P 325 69.9744 95 0.02 89
IV.VCEL.EHZ. 2016-08-26T18:16:59.07 0.1 undecidable manual P 131 63.8916 95 0.11 88
IV.CSP1.EHZ. 2016-08-26T18:16:59.70 0.6 undecidable manual S 353 35.1426 101 0.09 47
IV.CING.HHZ. 2016-08-26T18:16:59.48 0.1 undecidable manual P 356 66.4779 95 0.11 88
IV.ATCC.EHZ. 2016-08-26T18:16:59.55 0.1 undecidable manual P 312 67.377 95 0.05 89
IV.GUMA.HHZ. 2016-08-26T18:16:59.10 0.1 undecidable manual S 11 32.2455 103 0.22 91
IV.FAGN.HHZ. 2016-08-26T18:16:59.25 0.1 undecidable manual P 155 62.7927 95 0.46 82
IV.EL6.EHZ. 2016-08-26T18:16:58.64 0.1 undecidable manual P 349 62.493 95 -0.1 88
IV.T1215.EHZ. 2016-08-26T18:16:58.70 0.1 undecidable manual S 275 31.6461 103 -0.01 95
IV.FDMO.HHZ. 2016-08-26T18:16:58.70 0.1 undecidable manual S 335 31.8459 103 -0.05 94
IV.RM33.EHZ. 2016-08-26T18:16:58.30 0.1 undecidable manual S 186 29.9478 104 0.02 95
XO.MN02.HNZ. 2016-08-26T18:16:58.20 0.6 undecidable manual S 178 29.2485 105 0.11 47
IV.CAMP.HHZ. 2016-08-26T18:16:57.90 0.6 undecidable manual S 155 29.5482 105 -0.28 45
IV.SNTG.HHZ. 2016-08-26T18:16:57.95 0.1 undecidable manual P 334 58.7967 96 -0.23 87
IV.ASSB.HHZ. 2016-08-26T18:16:57.63 0.1 undecidable manual P 301 56.6988 96 -0.23 87
XO.MN06.HNZ. 2016-08-26T18:16:57.90 0.6 undecidable manual S 182 28.1496 106 0.09 47
IV.LNSS.HHZ. 2016-08-26T18:16:57.40 0.6 undecidable manual S 222 26.1516 108 0.1 47
IV.FIAM.HHZ. 2016-08-26T18:16:57.79 0.1 undecidable manual P 191 57.5979 96 -0.21 87
IV.FEMA.HNZ. 2016-08-26T18:16:57.40 0.6 undecidable manual S 321 26.4513 107 0.02 48
IV.OFFI.HHZ. 2016-08-26T18:16:56.03 0.1 undecidable manual P 63 39.0276 100 0.87 73
IV.T1216.EHZ. 2016-08-26T18:16:56.30 0.1 undecidable manual S 303 22.9548 111 -0.2 93
IV.ARRO.EHZ. 2016-08-26T18:16:56.03 0.1 undecidable manual P 241 45.621 98 -0.13 91
IV.T1241.HHN. 2016-08-26T18:16:55.00 0.1 undecidable manual S 58 16.7721 122 0 97
IV.T1212.HNE. 2016-08-26T18:16:55.10 0.1 undecidable manual S 261 17.4714 121 -0.06 96
IV.GIGS.HHZ. 2016-08-26T18:16:55.81 0.6 undecidable manual P 144 44.3223 98 -0.15 45
IV.SMA1.EHZ. 2016-08-26T18:16:55.00 0.6 undecidable manual S 158 17.5713 120 -0.19 47
IV.CESI.HHZ. 2016-08-26T18:16:54.91 0.1 undecidable manual P 312 38.1285 100 -0.11 92
IV.T1204.EHZ. 2016-08-26T18:16:54.00 0.1 undecidable manual S 156 12.2766 133 -0.06 97
IV.T1243.HHZ. 2016-08-26T18:16:54.90 0.1 undecidable manual S 120 18.0708 119 -0.41 89
IV.T1201.HNN. 2016-08-26T18:16:54.50 0.1 undecidable manual S 182 13.3755 130 0.23 94
IV.CSP1.EHZ. 2016-08-26T18:16:54.48 0.1 undecidable manual P 353 35.1426 101 -0.09 93
IV.TERO.HHZ. 2016-08-26T18:16:54.05 0.1 undecidable manual P 121 33.1446 102 -0.22 91
IV.T1218.HNE. 2016-08-26T18:16:54.90 0.1 undecidable manual S 224 16.5723 122 -0.06 97
IV.MMO1.EHZ. 2016-08-26T18:16:54.40 0.1 undecidable manual S 23 14.6742 127 -0.16 95
IV.GUMA.HHZ. 2016-08-26T18:16:54.32 0.1 undecidable manual P 11 32.2455 103 0.18 92
IV.MC2.EHZ. 2016-08-26T18:16:54.90 0.6 undecidable manual S 340 15.7731 124 0.1 48
IV.RM33.EHZ. 2016-08-26T18:16:53.73 0.1 undecidable manual P 186 29.9478 104 -0.07 94
IV.T1202.EHE. 2016-08-26T18:16:53.70 0.3 undecidable manual S 197 8.5803 145 0.29 70
IV.FEMA.HNZ. 2016-08-26T18:16:53.24 0.1 undecidable manual P 321 26.4513 107 -0.03 96
XO.MN06.HNZ. 2016-08-26T18:16:53.53 0.1 undecidable manual P 182 28.1496 106 0.01 96
IV.NRCA.HNZ. 2016-08-26T18:16:53.90 0.1 undecidable manual S 298 13.0758 131 -0.32 92
IV.CAMP.HHZ. 2016-08-26T18:16:53.51 0.1 undecidable manual P 155 29.5482 105 -0.22 91
IV.LNSS.HHZ. 2016-08-26T18:16:53.24 0.1 undecidable manual P 222 26.1516 108 0.02 96
IV.T1215.EHZ. 2016-08-26T18:16:53.90 0.1 undecidable manual P 275 31.6461 103 -0.14 93
XO.MN02.HNZ. 2016-08-26T18:16:53.65 0.1 undecidable manual P 178 29.2485 105 -0.04 95
IV.T1242.HHZ. 2016-08-26T18:16:53.20 0.1 undecidable manual S 324 7.0929 150 0 99
IV.FDMO.HHZ. 2016-08-26T18:16:53.87 0.1 undecidable manual P 335 31.8459 103 -0.2 91
IV.T1213.HNE. 2016-08-26T18:16:53.90 0.1 undecidable manual S 241 12.0768 134 -0.13 96
IV.SMA1.EHZ. 2016-08-26T18:16:52.01 0.1 undecidable manual P 158 17.5713 120 0 98
IV.T1244.EHZ. 2016-08-26T18:16:52.90 0.1 undecidable manual S 124 4.0959 162 0.02 100
IV.T1243.HHZ. 2016-08-26T18:16:52.02 0.1 undecidable manual P 120 18.0708 119 -0.05 96
IV.T1212.HNE. 2016-08-26T18:16:52.00 0.1 undecidable manual P 261 17.4714 121 0 98
IV.T1216.EHZ. 2016-08-26T18:16:52.65 0.1 undecidable manual P 303 22.9548 111 -0.12 94
IV.T1214.HNE. 2016-08-26T18:16:52.80 0.6 undecidable manual S 243 4.2957 161 -0.1 49
IV.MC2.EHZ. 2016-08-26T18:16:51.87 0.1 undecidable manual P 340 15.7731 124 0.08 97
IV.T1213.HNE. 2016-08-26T18:16:51.37 0.1 undecidable manual P 241 12.0768 134 0.03 98
IV.T1202.EHE. 2016-08-26T18:16:51.21 0.1 undecidable manual P 197 8.5803 145 0.23 95
IV.T1204.EHZ. 2016-08-26T18:16:51.49 0.1 undecidable manual P 156 12.2766 133 0.13 96
IV.T1218.HNE. 2016-08-26T18:16:51.90 0.1 undecidable manual P 224 16.5723 122 0.02 98
IV.MMO1.EHZ. 2016-08-26T18:16:51.62 0.1 undecidable manual P 23 14.6742 127 -0.03 98
IV.T1241.HHN. 2016-08-26T18:16:51.90 0.1 undecidable manual P 58 16.7721 122 0 98
IV.NRCA.HNZ. 2016-08-26T18:16:51.39 0.1 undecidable manual P 298 13.0758 131 -0.06 97
IV.T1201.HNN. 2016-08-26T18:16:51.70 0.1 undecidable manual P 182 13.3755 130 0.22 94
IV.T1244.EHZ. 2016-08-26T18:16:50.81 0.1 undecidable manual P 124 4.0959 162 0.14 97
IV.T1214.HNE. 2016-08-26T18:16:50.78 0.1 undecidable manual P 243 4.2957 161 0.09 98
IV.T1242.HHZ. 2016-08-26T18:16:50.96 0.1 undecidable manual P 324 7.0929 150 0.1 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PIEI.HHN. ML:1.6 0.000038100000000000005 1.2 AML other m 2016-08-26T18:17:25.03
IV.NRCA.HHN. ML:3.2 0.01445 0.7 AML other m 2016-08-26T18:16:54.51
IV.NRCA.HNN. ML:3.2 0.012960000000000001 0.12 AML other m 2016-08-26T18:16:54.52
IV.NRCA.HHE. ML:3.3 0.0158 0.66 AML other m 2016-08-26T18:16:54.19
IV.MMO1.EHE. ML:2.6 0.0028250000000000003 0.36 AML other m 2016-08-26T18:16:54.55
IV.MMO1.EHN. ML:2.2 0.0013399999999999998 1.06 AML other m 2016-08-26T18:16:55.54
IV.SMA1.EHE. ML:2.3 0.0015249999999999999 0.36 AML other m 2016-08-26T18:16:55.42
IV.SMA1.EHN. ML:2.5 0.002005 0.18 AML other m 2016-08-26T18:16:55.23
IV.T1243.HHE. ML:2.6 0.00248 1.34 AML other m 2016-08-26T18:16:55.97
IV.T1243.HNE. ML:2.6 0.002565 1.36 AML other m 2016-08-26T18:16:55.30
IV.T1243.HHN. ML:2.5 0.002345 1.72 AML other m 2016-08-26T18:16:56.93
IV.T1243.HNN. ML:2.5 0.0023799999999999997 1.72 AML other m 2016-08-26T18:16:56.93
IV.LNSS.HHE. ML:2.2 0.0008534999999999999 0.36 AML other m 2016-08-26T18:16:57.85
IV.LNSS.HHN. ML:2.3 0.0010385 0.34 AML other m 2016-08-26T18:16:57.80
IV.CAMP.HHE. ML:2.1 0.0005549999999999999 0.24 AML other m 2016-08-26T18:16:58.40
IV.CAMP.HHN. ML:1.9 0.000368 0.68 AML other m 2016-08-26T18:16:58.76
IV.RM33.HNE. ML:2.3 0.0008 0.94 AML other m 2016-08-26T18:16:58.99
IV.RM33.HNN. ML:2.3 0.0009635000000000001 0.26 AML other m 2016-08-26T18:16:58.64
IV.RM33.EHN. ML:2.3 0.0009195 0.26 AML other m 2016-08-26T18:16:58.64
IV.TERO.HHE. ML:2.2 0.0006925 0.18 AML other m 2016-08-26T18:16:59.18
IV.FDMO.HHN. ML:2.0 0.0004265 0.3 AML other m 2016-08-26T18:16:59.20
IV.RM33.EHE. ML:2.2 0.000767 1.3 AML other m 2016-08-26T18:16:59.99
IV.TERO.HHN. ML:2.1 0.000521 1.24 AML other m 2016-08-26T18:17:00.66
IV.CSP1.EHE. ML:2.4 0.000878 0.18 AML other m 2016-08-26T18:17:00.33
IV.FDMO.HHE. ML:1.9 0.0003105 1 AML other m 2016-08-26T18:17:01.05
IV.CESI.HHE. ML:2.0 0.00038 0.14 AML other m 2016-08-26T18:17:01.04
IV.GUMA.HNE. ML:2.6 0.00174 0.34 AML other m 2016-08-26T18:17:01.49
IV.GUMA.HHE. ML:2.6 0.0016950000000000001 0.34 AML other m 2016-08-26T18:17:02.24
IV.GIGS.HHN. ML:1.7 0.0001545 0.14 AML other m 2016-08-26T18:17:02.19
IV.CESI.HHN. ML:2.1 0.000415 0.4 AML other m 2016-08-26T18:17:02.60
IV.GIGS.HHE. ML:1.6 0.000122 0.72 AML other m 2016-08-26T18:17:02.29
IV.ARRO.EHE. ML:1.9 0.0002155 0.18 AML other m 2016-08-26T18:17:02.88
IV.OFFI.HHE. ML:2.2 0.000528 0.42 AML other m 2016-08-26T18:17:03.34
IV.OFFI.HHN. ML:2.4 0.0009375 0.28 AML other m 2016-08-26T18:17:03.70
IV.ARRO.EHN. ML:1.9 0.000221 0.14 AML other m 2016-08-26T18:17:03.70
IV.ASSB.HHE. ML:1.8 0.00014050000000000003 0.16 AML other m 2016-08-26T18:17:06.20
IV.FIAM.HHN. ML:1.8 0.000123 0.3 AML other m 2016-08-26T18:17:06.29
IV.FIAM.HHE. ML:1.9 0.000182 0.4 AML other m 2016-08-26T18:17:06.18
IV.ASSB.HHN. ML:1.8 0.00012225 1.48 AML other m 2016-08-26T18:17:06.04
IV.SNTG.HHE. ML:2.0 0.00019350000000000001 0.56 AML other m 2016-08-26T18:17:07.41
IV.SNTG.HHN. ML:2.0 0.0001825 0.14 AML other m 2016-08-26T18:17:07.43
IV.FAGN.HHN. ML:2.4 0.0004205 0.56 AML other m 2016-08-26T18:17:09.46
IV.FOSV.EHN. ML:1.9 0.0001264 1.5 AML other m 2016-08-26T18:17:09.19
IV.FAGN.HHE. ML:2.4 0.00041999999999999996 0.34 AML other m 2016-08-26T18:17:09.98
IV.VCEL.EHE. ML:2.2 0.0002585 0.26 AML other m 2016-08-26T18:17:10.42
IV.ATCC.EHE. ML:2.0 0.0001725 0.26 AML other m 2016-08-26T18:17:11.19
IV.FOSV.EHE. ML:1.8 0.00011199999999999998 0.42 AML other m 2016-08-26T18:17:11.74
IV.VCEL.EHN. ML:2.2 0.0002695 1.24 AML other m 2016-08-26T18:17:11.75
IV.ATCC.EHN. ML:1.9 0.0001263 0.16 AML other m 2016-08-26T18:17:11.99
IV.T0110.HHN. ML:2.2 0.00023099999999999998 0.6 AML other m 2016-08-26T18:17:13.42
IV.T0110.HHE. ML:2.0 0.0001515 0.66 AML other m 2016-08-26T18:17:15.38
IV.ARVD.HHE. ML:1.8 0.00008649999999999999 1 AML other m 2016-08-26T18:17:15.22
IV.ATFO.HHN. ML:1.7 0.000059399999999999994 0.22 AML other m 2016-08-26T18:17:15.87
IV.ARVD.HHN. ML:1.7 0.00005895 1.3 AML other m 2016-08-26T18:17:16.92
IV.ATFO.HHE. ML:1.7 0.000060100000000000004 0.64 AML other m 2016-08-26T18:17:19.51
IV.PIEI.HHE. ML:1.7 0.000045600000000000004 0.28 AML other m 2016-08-26T18:17:24.00
IV.MC2.EHN. ML:1.9 0.0006836441999999998 0.2816 AML other m 2016-08-26T18:16:57.86
IV.MC2.EHE. ML:2.0 0.00069917455 0.2816 AML other m 2016-08-26T18:16:57.86
IV.TERO.HNE. ML:2.2 0.0006161733499999999 0.1792 AML other m 2016-08-26T18:16:59.08
IV.TERO.HNN. ML:1.9 0.00033190170000000003 0.0768 AML other m 2016-08-26T18:16:59.51
IV.GUMA.HNN. ML:2.7 0.0021278515 0.2816 AML other m 2016-08-26T18:17:00.12
IV.GUMA.HHN. ML:2.8 0.002523424 0.2944 AML other m 2016-08-26T18:17:00.12
IV.CSP1.EHN. ML:2.4 0.0009445809999999999 0.1792 AML other m 2016-08-26T18:16:59.93
IV.INTR.HHE. ML:1.5 0.00002984559 0.2688 AML other m 2016-08-26T18:17:19.51
IV.INTR.HHN. ML:1.9 0.00007696685 0.3328 AML other m 2016-08-26T18:17:20.38
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