Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 24-08-2016 and time 22:30:28 (Italy) in region 4 km W Accumoli (RI)

A magnitude ML 2.0 earthquake occured in region: 4 km W Accumoli (RI), on

  • 24-08-2016 20:30:28 (UTC)
  • 24-08-2016 22:30:28 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6870, 13.2060 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 4 667 667
Cittareale RI 9 482 1149
Amatrice RI 9 2657 3806
Arquata del Tronto AP 12 1178 4984
Norcia PG 15 4957 9941
Cascia PG 16 3217 13158
Montereale AQ 18 2581 15739
Acquasanta Terme AP 19 2916 18655
Campotosto AQ 20 542 19197

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km NW of L'Aquila (69753 inhabitants)
41 Km W of Teramo (54892 inhabitants)
48 Km E of Terni (111501 inhabitants)
51 Km SE of Foligno (57155 inhabitants)
80 Km W of Montesilvano (53738 inhabitants)
81 Km SE of Perugia (166134 inhabitants)
86 Km NE of Guidonia Montecelio (88673 inhabitants)
86 Km W of Pescara (121014 inhabitants)
87 Km NE of Tivoli (56533 inhabitants)
87 Km W of Chieti (51815 inhabitants)
95 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 2016-08-24
20:30:28		 42.6872 13.2057 10 2019-02-12
13:57:11		 Bollettino Sismico Italiano INGV 29044571
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-08-24 20:30:28 ± 0.06
Latitude 42.6872 ± 0.0036
Longitude 13.2057 ± 0.0049
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 29044571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 437
Semi-minor axis of confidence ellipse (meter) 317
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 224
Circular confidence region, given by single value of horizontal uncertainty (meter) 440.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 100
Number of associated phases, regardless of their use for origin computation 41
Number of defining phases 39
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.43078
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 21
Magnitude information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 5
Type of magnitude ML
Reference to an origin 29044571
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2016-12-02 17:20:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CAFE.HHZ. 2016-08-24T20:31:37.99 3.0 undecidable manual Sg 5.55 0
IV.PTRJ.HNZ. 2016-08-24T20:31:22.99 3.0 undecidable manual Sg 5.26 0
IV.CESI.HHZ. 2016-08-24T20:30:42.20 0.3 undecidable manual S 325 42.9237 50 0.08 70
IV.CSP1.EHZ. 2016-08-24T20:30:42.85 0.3 undecidable manual S 360 44.9217 50 0.2 68
IV.GUMA.HHZ. 2016-08-24T20:30:42.89 0.3 undecidable manual S 14 43.0236 50 0.75 58
IV.FDMO.HHZ. 2016-08-24T20:30:41.58 0.6 undecidable manual S 346 39.9267 50 0.25 45
IV.TERO.HHZ. 2016-08-24T20:30:39.20 0.3 undecidable manual S 102 33.2445 50 -0.34 67
IV.T1241.HHN. 2016-08-24T20:30:37.09 0.6 undecidable manual S 44 26.2515 50 -0.58 42
IV.OFFI.HHE. 2016-08-24T20:30:37.72 0.3 undecidable manual P 55 47.8188 50 0.81 56
IV.GUMA.HHZ. 2016-08-24T20:30:36.97 0.6 undecidable manual P 14 43.0236 50 0.8 38
IV.CAMP.HHE. 2016-08-24T20:30:36.69 0.1 undecidable manual S 135 23.5542 113 -0.25 93
IV.CESI.HHZ. 2016-08-24T20:30:36.10 0.3 undecidable manual P 325 42.9237 50 -0.06 70
IV.CSP1.EHZ. 2016-08-24T20:30:36.48 0.3 undecidable manual P 360 44.9217 50 0.01 70
IV.FDMO.HHZ. 2016-08-24T20:30:35.49 0.3 undecidable manual P 346 39.9267 50 -0.21 68
IV.GIGS.HHN. 2016-08-24T20:30:35.32 0.3 undecidable manual P 131 39.627 50 -0.34 66
IV.ARRO.EHZ. 2016-08-24T20:30:35.27 0.3 undecidable manual P 252 37.8288 50 -0.11 70
IV.T1243.HHZ. 2016-08-24T20:30:35.38 0.6 undecidable manual S 87 19.869 117 -0.37 45
IV.T1242.HHZ. 2016-08-24T20:30:34.55 0.6 undecidable manual S 360 15.7731 123 0.01 49
IV.TERO.HHZ. 2016-08-24T20:30:34.36 0.1 undecidable manual P 102 33.2445 50 -0.31 90
IV.SMA1.EHN. 2016-08-24T20:30:34.06 0.6 undecidable manual S 121 12.2766 130 0.5 45
IV.LNSS.HHZ. 2016-08-24T20:30:34.80 0.1 undecidable manual S 235 16.3725 122 0.07 97
IV.NRCA.HNZ. 2016-08-24T20:30:34.73 0.1 undecidable manual S 335 17.871 120 -0.43 90
IV.T1241.HHN. 2016-08-24T20:30:33.25 0.1 undecidable manual P 44 26.2515 50 -0.34 90
IV.AQT1.EHZ. 2016-08-24T20:30:33.37 0.3 undecidable manual S 37 11.9769 130 -0.12 73
IV.T1212.HNE. 2016-08-24T20:30:33.92 0.6 undecidable manual S 299 14.9739 124 -0.38 46
IV.CAMP.HHE. 2016-08-24T20:30:33.05 0.1 positive manual P 135 23.5542 113 -0.12 95
IV.T1213.HNE. 2016-08-24T20:30:32.21 0.6 undecidable manual S 303 7.7811 143 -0.25 48
IV.T1201.HNN. 2016-08-24T20:30:32.24 0.6 undecidable manual S 132 4.995 154 0.29 47
IV.T1243.HHZ. 2016-08-24T20:30:32.35 0.1 undecidable manual P 87 19.869 117 -0.13 96
IV.T1214.HNE. 2016-08-24T20:30:32.31 0.3 undecidable manual S 2 8.0808 142 -0.21 72
IV.LNSS.HHZ. 2016-08-24T20:30:31.99 0.1 positive manual P 235 16.3725 122 0.1 97
IV.T1202.EHE. 2016-08-24T20:30:31.75 0.6 undecidable manual S 41 2.3976 167 0.09 50
IV.NRCA.HNZ. 2016-08-24T20:30:31.98 0.1 undecidable manual P 335 17.871 120 -0.16 95
IV.T1242.HHZ. 2016-08-24T20:30:31.92 0.1 undecidable manual P 360 15.7731 123 0.14 96
IV.AQT1.EHZ. 2016-08-24T20:30:31.30 0.1 undecidable manual P 37 11.9769 130 0.12 97
IV.SMA1.EHN. 2016-08-24T20:30:31.60 0.1 undecidable manual P 121 12.2766 130 0.38 92
IV.T1212.HNE. 2016-08-24T20:30:31.55 0.1 undecidable manual P 299 14.9739 124 -0.1 97
IV.T1214.HNE. 2016-08-24T20:30:30.66 0.1 undecidable manual P 2 8.0808 142 0.04 99
IV.T1202.EHE. 2016-08-24T20:30:30.32 0.1 undecidable manual P 41 2.3976 167 0.2 97
IV.T1213.HNE. 2016-08-24T20:30:30.59 0.1 undecidable manual P 303 7.7811 143 0.01 100
IV.T1201.HNN. 2016-08-24T20:30:30.64 0.1 undecidable manual P 132 4.995 154 0.35 94
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:1.6 0.000128 0.18 AML other m 2016-08-24T20:30:58.55
IV.CESI.HHN. ML:1.7 0.00016299999999999998 0.28 AML other m 2016-08-24T20:30:58.59
IV.GUMA.HHE. ML:2.1 0.0003985 0.3 AML other m 2016-08-24T20:30:43.18
IV.GUMA.HHN. ML:2.0 0.000284 0.32 AML other m 2016-08-24T20:30:43.32
IV.LNSS.HHE. ML:2.1 0.0010905 0.22 AML other m 2016-08-24T20:30:34.99
IV.LNSS.HHN. ML:2.0 0.0008565000000000001 0.32 AML other m 2016-08-24T20:30:35.59
IV.NRCA.HHE. ML:2.4 0.002005 0.24 AML other m 2016-08-24T20:30:35.04
IV.NRCA.HHN. ML:2.4 0.001925 0.84 AML other m 2016-08-24T20:30:51.48
IV.TERO.HHN. ML:1.8 0.00029549999999999997 0.1 AML other m 2016-08-24T20:30:40.20
IV.TERO.HHE. ML:1.8 0.00028700000000000004 0.12 AML other m 2016-08-24T20:30:39.62
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
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