Earthquake with magnitude of Md 1.5 on date 25-08-2016 and time 00:55:14 (UTC) in region 6 km SW Accumoli (RI)

A magnitude Md 1.5 earthquake occured in region: 6 km SW Accumoli (RI), on

  • 25-08-2016 00:55:14 (UTC)
  • 25-08-2016 02:55:14 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6660, 13.1940 at 11 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
Accumoli RI 6 667 667
Cittareale RI 6 482 1149
Amatrice RI 9 2657 3806
Arquata del Tronto AP 15 1178 4984
Cascia PG 16 3217 8201
Norcia PG 16 4957 13158
Montereale AQ 16 2581 15739
Borbona RI 18 617 16356
Posta RI 18 694 17050
Capitignano AQ 18 665 17715
Campotosto AQ 19 542 18257
Monteleone di Spoleto PG 20 599 18856

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km NW of L'Aquila (69753 inhabitants)
42 Km W of Teramo (54892 inhabitants)
46 Km E of Terni (111501 inhabitants)
51 Km SE of Foligno (57155 inhabitants)
80 Km W of Montesilvano (53738 inhabitants)
82 Km SE of Perugia (166134 inhabitants)
83 Km NE of Guidonia Montecelio (88673 inhabitants)
85 Km NE of Tivoli (56533 inhabitants)
87 Km W of Pescara (121014 inhabitants)
87 Km W of Chieti (51815 inhabitants)
93 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
Md 1.5 2016-08-25
00:55:14
42.6662 13.1943 11 2019-02-12
13:57:13
Bollettino Sismico Italiano INGV 29559771
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-08-25 00:55:14 ± 0.07
Latitude 42.6662 ± 0.0027
Longitude 13.1943 ± 0.0049
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 29559771

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 383
Semi-minor axis of confidence ellipse (meter) 259
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 242
Circular confidence region, given by single value of horizontal uncertainty (meter) 380.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 83
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 27
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) 0.54319
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 14
Magnitude information

Md:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 4
Type of magnitude Md
Reference to an origin 29559771
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2016-09-26 15:36:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARVD.HHZ. 2016-08-25T00:55:44.99 3.0 undecidable manual S 0.02 0
IV.ASSB.HHZ. 2016-08-25T00:55:33.00 0.3 undecidable manual S 314 60.2952 50 0.18 68
IV.CESX.HHZ. 2016-08-25T00:55:30.09 0.3 undecidable manual S 263 50.0166 50 0.03 71
IV.GUMA.HHZ. 2016-08-25T00:55:29.66 0.1 undecidable manual S 15 45.4212 50 0.81 76
IV.CSP1.EHZ. 2016-08-25T00:55:29.43 0.3 undecidable manual S 1 47.2194 50 0.11 70
IV.FIAM.HHZ. 2016-08-25T00:55:28.49 0.3 undecidable manual S 188 44.622 50 -0.13 70
IV.CESI.HHZ. 2016-08-25T00:55:28.38 0.3 undecidable manual S 328 44.3223 50 -0.17 70
IV.FDMO.HHZ. 2016-08-25T00:55:27.83 0.1 undecidable manual S 348 42.0246 50 -0.09 95
IV.ARRO.EHZ. 2016-08-25T00:55:26.12 0.3 undecidable manual S 255 36.3414 50 -0.28 69
IV.ASSB.HHZ. 2016-08-25T00:55:25.13 0.3 undecidable manual P 314 60.2952 50 0.2 67
IV.TERO.HHZ. 2016-08-25T00:55:25.36 0.1 undecidable manual S 98 33.744 50 -0.37 91
IV.GUMA.HHZ. 2016-08-25T00:55:23.01 0.1 undecidable manual P 15 45.4212 50 0.37 89
IV.CESX.HHZ. 2016-08-25T00:55:23.15 0.1 undecidable manual P 263 50.0166 50 -0.19 92
IV.CESI.HHZ. 2016-08-25T00:55:22.36 0.3 undecidable manual P 328 44.3223 50 -0.11 71
IV.CSP1.EHZ. 2016-08-25T00:55:22.75 0.3 undecidable manual P 1 47.2194 50 -0.16 69
IV.FDMO.HHZ. 2016-08-25T00:55:22.18 0.3 undecidable manual P 348 42.0246 50 0.08 71
IV.CAMP.HHE. 2016-08-25T00:55:22.61 0.1 undecidable manual S 129 22.755 50 -0.17 97
IV.FIAM.HHZ. 2016-08-25T00:55:22.51 0.3 undecidable manual P 188 44.622 50 0 72
IV.ARRO.EHZ. 2016-08-25T00:55:21.13 0.1 positive manual P 255 36.3414 50 -0.1 96
MN.AQU.HLZ. 2016-08-25T00:55:21.92 0.3 undecidable manual P 153 38.628 50 0.33 68
IV.RM33.EHZ. 2016-08-25T00:55:21.31 0.1 undecidable manual S 175 17.4714 121 0.04 100
IV.NRCA.HHZ. 2016-08-25T00:55:21.36 0.1 undecidable manual S 341 19.6692 118 -0.56 88
IV.TERO.HHZ. 2016-08-25T00:55:20.67 0.1 undecidable manual P 98 33.744 50 -0.17 95
IV.LNSS.HHZ. 2016-08-25T00:55:20.56 0.3 undecidable manual S 241 14.3745 126 0.19 73
IV.CAMP.HHE. 2016-08-25T00:55:19.17 0.1 undecidable manual P 129 22.755 50 0.04 99
IV.RM33.EHZ. 2016-08-25T00:55:18.48 0.1 undecidable manual P 175 17.4714 121 0.22 96
IV.NRCA.HHZ. 2016-08-25T00:55:18.49 0.1 undecidable manual P 341 19.6692 118 -0.15 98
IV.LNSS.HHZ. 2016-08-25T00:55:17.97 0.1 positive manual P 241 14.3745 126 0.23 97
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