Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 25-08-2016 and time 23:09:31 (Italy) in region 3 km NW Accumoli (RI)

A magnitude ML 2.0 earthquake occured in region: 3 km NW Accumoli (RI), on

  • 25-08-2016 21:09:31 (UTC)
  • 25-08-2016 23:09:31 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7200, 13.2230 at 10 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.

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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
Accumoli RI 3 667 667
Arquata del Tronto AP 9 1178 1845
Amatrice RI 11 2657 4502
Cittareale RI 12 482 4984
Norcia PG 13 4957 9941
Acquasanta Terme AP 16 2916 12857
Montegallo AP 16 523 13380
Cascia PG 17 3217 16597

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km W of Teramo (54892 inhabitants)
43 Km NW of L'Aquila (69753 inhabitants)
50 Km SE of Foligno (57155 inhabitants)
50 Km E of Terni (111501 inhabitants)
79 Km W of Montesilvano (53738 inhabitants)
80 Km SE of Perugia (166134 inhabitants)
86 Km W of Pescara (121014 inhabitants)
88 Km W of Chieti (51815 inhabitants)
90 Km NE of Guidonia Montecelio (88673 inhabitants)
91 Km NE of Tivoli (56533 inhabitants)
97 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
Bulletin
Rev1000 		ML 2.0 2016-08-25
21:09:31		 42.7203 13.2228 10 2019-02-12
13:57:26		 Bollettino Sismico Italiano INGV 37474071
Reviewed
Rev100 		ML 2.0 2016-08-25
21:09:31		 42.7198 13.2247 10 2016-08-25
21:19:49		 Sala Sismica INGV-Roma 27234381
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-08-25 21:09:31 ± 0.04
Latitude 42.7203 ± 0.0018
Longitude 13.2228 ± 0.0024
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 37474071

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 259
Semi-minor axis of confidence ellipse (meter) 156
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 237
Circular confidence region, given by single value of horizontal uncertainty (meter) 260.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 38
Number of associated phases, regardless of their use for origin computation 83
Number of defining phases 81
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.95688
Number of stations at which the event was observed 45
Number of stations from which data was used for origin computation 43
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 21
Type of magnitude ML
Reference to an origin 37474071
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2016-12-23 10:46:39

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 21
Type of magnitude ML
Reference to an origin 27234381
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-08-25 21:19:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PII.HHZ. 2016-08-25T21:10:37.99 3.0 undecidable manual Sn 2.77 0
IV.PIEI.HHZ. 2016-08-25T21:10:03.26 0.3 undecidable manual S 329 106.2159 50 0.58 55
IV.LPEL.HHZ. 2016-08-25T21:10:02.99 3.0 undecidable manual S -3.11 0
IV.MGAB.HHZ. 2016-08-25T21:09:59.54 0.3 undecidable manual S 284 92.8404 50 0.43 60
IV.SRES.HHZ. 2016-08-25T21:09:55.76 0.3 undecidable manual S 228 79.2651 50 0.28 63
IV.FOSV.EHZ. 2016-08-25T21:09:54.56 0.1 undecidable manual S 330 73.8705 50 0.51 81
IV.ATCC.EHZ. 2016-08-25T21:09:53.44 0.1 undecidable manual S 318 69.9744 50 0.43 83
IV.T0110.HHZ. 2016-08-25T21:09:53.21 0.3 undecidable manual S 140 70.8735 50 -0.02 68
IV.CING.HHZ. 2016-08-25T21:09:53.57 0.3 undecidable manual S 358 72.6717 50 -0.16 66
IV.EL6.EHZ. 2016-08-25T21:09:52.21 0.3 undecidable manual S 352 68.2761 50 -0.34 64
IV.SNTG.HHZ. 2016-08-25T21:09:51.81 0.1 undecidable manual S 339 63.5919 50 0.52 82
IV.VCEL.EHZ. 2016-08-25T21:09:51.52 0.3 undecidable manual S 125 62.0934 50 0.62 59
IV.ASSB.HHZ. 2016-08-25T21:09:50.12 0.1 undecidable manual S 308 58.0974 50 0.27 88
IV.FAGN.HHZ. 2016-08-25T21:09:49.93 0.3 undecidable manual S 150 58.3971 50 0 70
IV.PIEI.HHZ. 2016-08-25T21:09:49.51 0.1 undecidable manual P 329 106.2159 50 -0.03 84
IV.CESX.HHZ. 2016-08-25T21:09:49.52 0.1 undecidable manual S 257 53.3022 50 0.95 70
IV.TRTR.HHZ. 2016-08-25T21:09:49.61 0.3 undecidable manual S 80 57.0984 50 0.04 69
IV.MGAB.HHZ. 2016-08-25T21:09:48.03 0.1 undecidable manual P 284 92.8404 50 0.55 77
IV.FIAM.HHZ. 2016-08-25T21:09:47.94 0.3 undecidable manual S 190 50.9157 50 0.02 70
IV.INTR.HHZ. 2016-08-25T21:09:47.73 0.1 undecidable manual P 144 96.4257 50 -0.31 81
IV.ARVD.HHZ. 2016-08-25T21:09:46.91 0.1 undecidable manual P 345 89.244 50 -0.02 87
IV.SSFR.HHZ. 2016-08-25T21:09:46.79 0.1 undecidable manual P 336 87.0462 50 0.2 84
IV.GIGS.HHZ. 2016-08-25T21:09:45.17 0.3 undecidable manual S 136 41.2254 50 -0.15 70
IV.SRES.HHZ. 2016-08-25T21:09:45.54 0.1 undecidable manual P 228 79.2651 50 0.16 86
IV.CESI.HHZ. 2016-08-25T21:09:45.04 0.1 undecidable manual S 321 40.8258 50 -0.18 92
IV.GUMA.HNN. 2016-08-25T21:09:45.33 0.1 undecidable manual S 13 39.0276 50 0.58 84
IV.PP3.EHZ. 2016-08-25T21:09:45.62 0.1 undecidable manual P 23 79.365 50 0.21 85
IV.CSP1.EHZ. 2016-08-25T21:09:44.99 0.3 undecidable manual S 358 41.2254 50 -0.34 67
IV.ARRO.EHZ. 2016-08-25T21:09:44.80 0.1 undecidable manual S 247 40.4262 50 -0.33 90
IV.CING.HHZ. 2016-08-25T21:09:44.49 0.1 undecidable manual P 358 72.6717 50 0.12 88
IV.FOSV.EHZ. 2016-08-25T21:09:44.48 0.1 undecidable manual P 330 73.8705 50 -0.09 89
IV.T1211.HNN. 2016-08-25T21:09:44.01 0.1 undecidable manual S 235 36.5412 50 -0.07 95
IV.T0110.HHZ. 2016-08-25T21:09:44.05 0.1 undecidable manual P 140 70.8735 50 -0.04 90
IV.FDMO.HHZ. 2016-08-25T21:09:43.88 0.1 undecidable manual S 343 36.741 50 -0.25 92
IV.TERO.HHN. 2016-08-25T21:09:43.00 0.1 undecidable manual S 109 32.9448 50 -0.11 95
IV.EL6.EHZ. 2016-08-25T21:09:43.66 0.1 undecidable manual P 352 68.2761 50 -0.04 90
IV.ATCC.EHZ. 2016-08-25T21:09:43.83 0.1 undecidable manual P 318 69.9744 50 -0.13 88
IV.VCEL.EHZ. 2016-08-25T21:09:43.20 0.1 undecidable manual P 125 62.0934 50 0.46 84
IV.SNTG.HHZ. 2016-08-25T21:09:42.85 0.1 undecidable manual P 339 63.5919 50 -0.12 90
IV.FAGN.HHZ. 2016-08-25T21:09:42.70 0.1 undecidable manual P 150 58.3971 50 0.52 83
IV.T1215.EHZ. 2016-08-25T21:09:41.93 0.1 undecidable manual S 288 30.2475 50 -0.47 88
IV.ASSB.HHZ. 2016-08-25T21:09:41.95 0.1 positive manual P 308 58.0974 50 -0.18 90
IV.TRTR.HHZ. 2016-08-25T21:09:41.70 0.3 undecidable manual P 80 57.0984 50 -0.27 66
IV.FEMA.HNE. 2016-08-25T21:09:41.94 0.1 undecidable manual S 332 30.2475 50 -0.47 88
IV.CESX.HHZ. 2016-08-25T21:09:41.01 0.1 undecidable manual P 257 53.3022 50 -0.39 86
IV.CAMP.HHZ. 2016-08-25T21:09:40.87 0.1 undecidable manual S 143 25.4523 111 -0.21 94
IV.FIAM.HHZ. 2016-08-25T21:09:40.81 0.1 undecidable manual P 190 50.9157 50 -0.21 90
IV.CESI.HHZ. 2016-08-25T21:09:39.23 0.1 undecidable manual P 321 40.8258 50 -0.23 91
IV.GUMA.HNN. 2016-08-25T21:09:39.25 0.1 undecidable manual P 13 39.0276 50 0.06 95
IV.MMO1.EHN. 2016-08-25T21:09:39.73 0.1 undecidable manual S 23 21.5673 115 -0.09 97
IV.CSP1.EHZ. 2016-08-25T21:09:39.23 0.1 undecidable manual P 358 41.2254 50 -0.3 90
IV.ARRO.EHZ. 2016-08-25T21:09:39.04 0.1 undecidable manual P 247 40.4262 50 -0.37 89
IV.MC2.EHZ. 2016-08-25T21:09:39.76 0.1 undecidable manual S 353 21.3675 115 0 99
IV.RM33.EHZ. 2016-08-25T21:09:39.81 0.3 undecidable manual S 182 23.4543 113 -0.61 64
IV.GIGS.HHZ. 2016-08-25T21:09:39.18 0.1 undecidable manual P 136 41.2254 50 -0.34 89
IV.LNSS.HHZ. 2016-08-25T21:09:39.29 0.1 undecidable manual S 229 19.7691 116 0.03 99
IV.T1211.HNN. 2016-08-25T21:09:38.53 0.1 undecidable manual P 235 36.5412 50 -0.27 91
IV.T1243.HNZ. 2016-08-25T21:09:38.73 0.1 undecidable manual S 98 18.5703 118 -0.16 96
IV.FDMO.HHZ. 2016-08-25T21:09:38.56 0.1 undecidable manual P 343 36.741 50 -0.27 91
IV.TERO.HHN. 2016-08-25T21:09:38.06 0.1 undecidable manual P 109 32.9448 50 -0.18 94
IV.NRCA.HNZ. 2016-08-25T21:09:37.54 0.1 undecidable manual S 325 15.3735 123 -0.38 93
IV.T1212.HNE. 2016-08-25T21:09:37.67 0.1 undecidable manual S 283 14.9739 123 -0.13 98
IV.CAMP.HHZ. 2016-08-25T21:09:37.04 0.1 undecidable manual P 143 25.4523 111 -0.03 98
IV.T1215.EHZ. 2016-08-25T21:09:37.52 0.1 undecidable manual P 288 30.2475 50 -0.31 92
IV.FEMA.HNE. 2016-08-25T21:09:37.61 0.1 undecidable manual P 332 30.2475 50 -0.23 93
IV.RM33.EHZ. 2016-08-25T21:09:36.77 0.1 undecidable manual P 182 23.4543 113 0.08 97
IV.LNSS.HHZ. 2016-08-25T21:09:36.10 0.1 positive manual P 229 19.7691 116 0.08 98
IV.T1204.EHZ. 2016-08-25T21:09:36.52 0.1 undecidable manual S 123 9.0798 137 0.28 96
IV.T1213.HNE. 2016-08-25T21:09:36.08 0.1 undecidable manual S 274 7.881 141 0.1 99
IV.MMO1.EHN. 2016-08-25T21:09:36.20 0.1 undecidable manual P 23 21.5673 115 -0.14 96
IV.T1241.HHN. 2016-08-25T21:09:36.44 0.1 undecidable manual P 48 22.6551 113 -0.11 97
IV.T1218.HNE. 2016-08-25T21:09:36.40 0.1 undecidable manual S 238 10.3785 133 -0.17 98
IV.MC2.EHZ. 2016-08-25T21:09:36.26 0.1 undecidable manual P 353 21.3675 115 -0.05 98
IV.T1214.HNE. 2016-08-25T21:09:35.50 0.1 undecidable manual S 345 4.4955 155 0.15 99
IV.NRCA.HNZ. 2016-08-25T21:09:35.26 0.1 negative manual P 325 15.3735 123 0.01 100
IV.T1212.HNE. 2016-08-25T21:09:35.25 0.1 positive manual P 283 14.9739 123 0.07 99
IV.T1243.HNZ. 2016-08-25T21:09:35.85 0.1 undecidable manual P 98 18.5703 118 0.05 99
IV.T1201.HNN. 2016-08-25T21:09:35.55 0.1 undecidable manual S 162 7.3815 143 -0.31 95
IV.T1201.HNN. 2016-08-25T21:09:34.64 0.1 undecidable manual P 162 7.3815 143 0.58 88
IV.T1218.HNE. 2016-08-25T21:09:34.75 0.1 undecidable manual P 238 10.3785 133 0.29 95
IV.T1204.EHZ. 2016-08-25T21:09:34.72 0.1 undecidable manual P 123 9.0798 137 0.44 92
IV.T1213.HNE. 2016-08-25T21:09:34.33 0.1 undecidable manual P 274 7.881 141 0.2 97
IV.T1214.HNE. 2016-08-25T21:09:33.98 0.1 undecidable manual P 345 4.4955 155 0.22 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARVD.HHE. ML:1.6 0.00004705 0.1 AML other m 2016-08-25T21:10:01.51
IV.ARVD.HHN. ML:1.5 0.000038 0.86 AML other m 2016-08-25T21:10:08.46
IV.ASSB.HHE. ML:2.0 0.0002375 1 AML other m 2016-08-25T21:09:50.77
IV.ASSB.HHN. ML:2.1 0.000277 1.18 AML other m 2016-08-25T21:09:51.02
IV.CAMP.HHE. ML:1.9 0.0004295 1.78 AML other m 2016-08-25T21:09:40.09
IV.CAMP.HHN. ML:2.0 0.0005555 0.26 AML other m 2016-08-25T21:09:41.14
IV.CESI.HHE. ML:2.2 0.0004985 0.36 AML other m 2016-08-25T21:09:45.67
IV.CESI.HHN. ML:2.5 0.00103 0.28 AML other m 2016-08-25T21:09:45.85
IV.CESX.HHN. ML:1.8 0.0001535 0.38 AML other m 2016-08-25T21:09:56.45
IV.CESX.HHE. ML:1.8 0.000152 0.62 AML other m 2016-08-25T21:09:57.43
IV.CING.HHN. ML:1.7 0.00008659999999999999 0.56 AML other m 2016-08-25T21:10:00.01
IV.CING.HHE. ML:1.8 0.00009165 0.54 AML other m 2016-08-25T21:10:00.63
IV.EL6.EHN. ML:2.0 0.00019000000000000006 1.34 AML other m 2016-08-25T21:09:55.72
IV.EL6.EHE. ML:2.0 0.000177 0.66 AML other m 2016-08-25T21:09:56.26
IV.FAGN.HHE. ML:2.1 0.000286 0.96 AML other m 2016-08-25T21:09:53.25
IV.FAGN.HHN. ML:2.1 0.0002775 0.26 AML other m 2016-08-25T21:09:54.49
IV.FDMO.HHE. ML:1.9 0.00033650000000000005 0.32 AML other m 2016-08-25T21:09:44.56
IV.FDMO.HHN. ML:2.1 0.0005295 0.24 AML other m 2016-08-25T21:09:44.62
IV.FIAM.HHN. ML:1.9 0.0001835 1.74 AML other m 2016-08-25T21:09:50.08
IV.FIAM.HHE. ML:2.0 0.00026450000000000003 1.58 AML other m 2016-08-25T21:09:48.88
IV.GIGS.HHN. ML:1.3 0.00006934999999999999 1.26 AML other m 2016-08-25T21:09:45.09
IV.GIGS.HHE. ML:1.6 0.00014399999999999998 0.18 AML other m 2016-08-25T21:09:45.12
IV.INTR.HHN. ML:1.9 0.00007985 1.04 AML other m 2016-08-25T21:10:07.13
IV.INTR.HHE. ML:1.6 0.0000401 0.64 AML other m 2016-08-25T21:10:06.65
IV.MGAB.HHE. ML:2.0 0.00010334999999999999 1.26 AML other m 2016-08-25T21:10:07.21
IV.MGAB.HHN. ML:1.9 0.00008879999999999999 0.46 AML other m 2016-08-25T21:10:05.53
IV.NRCA.HHN. ML:2.9 0.008084999999999998 0.22 AML other m 2016-08-25T21:09:37.77
IV.NRCA.HHE. ML:2.9 0.007449999999999999 0.08 AML other m 2016-08-25T21:09:37.76
IV.NRCA.HNE. ML:2.8 0.00683 0.2 AML other m 2016-08-25T21:09:37.76
IV.NRCA.HNN. ML:2.8 0.006939999999999999 0.22 AML other m 2016-08-25T21:09:37.77
IV.SNTG.HHE. ML:1.8 0.00011149999999999999 0.56 AML other m 2016-08-25T21:09:54.96
IV.SNTG.HHN. ML:1.7 0.00010449999999999999 0.84 AML other m 2016-08-25T21:09:54.69
IV.SRES.HHE. ML:1.6 0.00005995 1.1 AML other m 2016-08-25T21:10:01.57
IV.SRES.HHN. ML:1.6 0.0000512 0.46 AML other m 2016-08-25T21:10:01.38
IV.SSFR.HHN. ML:2.2 0.000179 0.16 AML other m 2016-08-25T21:10:00.43
IV.SSFR.HHE. ML:2.2 0.00020700000000000002 0.18 AML other m 2016-08-25T21:10:00.77
IV.T0110.HHN. ML:2.2 0.000268 0.38 AML other m 2016-08-25T21:09:56.70
IV.T0110.HHE. ML:2.1 0.0001875 0.5 AML other m 2016-08-25T21:09:56.42
IV.T1243.HHE. ML:2.6 0.00336 0.24 AML other m 2016-08-25T21:09:39.18
IV.T1243.HNE. ML:2.6 0.00337 0.26 AML other m 2016-08-25T21:09:39.18
IV.T1243.HNN. ML:2.7 0.0041600000000000005 1.16 AML other m 2016-08-25T21:09:38.41
IV.T1243.HHN. ML:2.7 0.004185 1.16 AML other m 2016-08-25T21:09:38.41
IV.TRTR.HHN. ML:2.4 0.0006245000000000001 0.62 AML other m 2016-08-25T21:10:00.94
IV.TRTR.HHE. ML:2.6 0.0008245 0.86 AML other m 2016-08-25T21:09:57.08
IV.VCEL.EHN. ML:2.2 0.00028849999999999997 0.82 AML other m 2016-08-25T21:09:53.21
IV.VCEL.EHE. ML:2.2 0.0003035 1.68 AML other m 2016-08-25T21:09:55.88
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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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