Earthquake with magnitude of Md 1.5 on date 25-08-2016 and time 00:26:34 (UTC) in region 8 km E Norcia (PG)

A magnitude Md 1.5 earthquake occured in region: 8 km E Norcia (PG), on

  • 25-08-2016 00:26:34 (UTC)
  • 25-08-2016 02:26:34 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7860, 13.1960 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.

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 8 4957 6135
Accumoli RI 11 667 6802
Castelsantangelo sul Nera MC 13 281 7083
Montegallo AP 13 523 7606
Preci PG 16 724 8330
Cascia PG 17 3217 11547
Montemonaco AP 17 604 12151
Acquasanta Terme AP 18 2916 15067
Ussita MC 18 444 15511
Visso MC 18 1107 16618
Cittareale RI 19 482 17100
Amatrice RI 19 2657 19757

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km W of Teramo (54892 inhabitants)
44 Km E of Foligno (57155 inhabitants)
51 Km NW of L'Aquila (69753 inhabitants)
51 Km E of Terni (111501 inhabitants)
75 Km E of Perugia (166134 inhabitants)
84 Km W of Montesilvano (53738 inhabitants)
91 Km W of Pescara (121014 inhabitants)
93 Km NW of Chieti (51815 inhabitants)
95 Km NE of Guidonia Montecelio (88673 inhabitants)
96 Km S of Ancona (100861 inhabitants)
97 Km NE of Tivoli (56533 inhabitants)
98 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
00:26:34
42.7863 13.196 10 2019-02-12
13:57:12
Bollettino Sismico Italiano INGV 29229211
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-08-25 00:26:34 ± 0.12
Latitude 42.7863 ± 0.0063
Longitude 13.1960 ± 0.0110
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 29229211

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1014
Semi-minor axis of confidence ellipse (meter) 395
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 243
Circular confidence region, given by single value of horizontal uncertainty (meter) 1010.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 89
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.73475
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 12
Magnitude information

Md:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 5
Type of magnitude Md
Reference to an origin 29229211
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2016-09-19 10:12:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GATE.HHZ. 2016-08-25T00:27:32.99 3.0 undecidable manual Sg 2.61 0
IV.SGG.HHZ. 2016-08-25T00:27:28.99 3.0 undecidable manual Sg 1.62 0
IV.SAMA.HHZ. 2016-08-25T00:27:08.99 3.0 undecidable manual S -3.77 0
IV.ARVD.HHZ. 2016-08-25T00:26:59.89 0.3 undecidable manual S 345 81.5517 50 0.75 54
IV.EL6.EHZ. 2016-08-25T00:26:54.03 0.3 undecidable manual S 353 60.6948 50 0.46 62
IV.FIAM.HHZ. 2016-08-25T00:26:52.99 3.0 undecidable manual S -1.64 0
IV.VVLD.HHZ. 2016-08-25T00:26:50.08 3.0 positive manual P -4.09 0
IV.ARVD.HHZ. 2016-08-25T00:26:49.35 0.3 undecidable manual P 345 81.5517 50 0.61 57
IV.TERO.HHZ. 2016-08-25T00:26:47.21 0.1 undecidable manual S 118 37.8288 50 -0.26 90
IV.CSP1.EHZ. 2016-08-25T00:26:46.05 0.3 undecidable manual S 1 33.9438 50 -0.36 67
IV.GUMA.HHZ. 2016-08-25T00:26:46.23 0.1 undecidable manual S 20 32.6451 50 0.15 93
IV.CESI.HHZ. 2016-08-25T00:26:46.29 0.1 undecidable manual S 316 33.9438 50 -0.12 94
IV.EL6.EHZ. 2016-08-25T00:26:45.51 0.3 undecidable manual P 353 60.6948 50 -0.01 68
IV.CAMP.HHE. 2016-08-25T00:26:45.92 0.1 undecidable manual S 148 32.745 50 -0.18 92
IV.FDMO.HHZ. 2016-08-25T00:26:44.53 0.1 undecidable manual S 342 29.1486 50 -0.6 84
IV.GIGS.HHZ. 2016-08-25T00:26:43.70 3.0 negative manual P -0.67 0
IV.OFFI.HHZ. 2016-08-25T00:26:43.44 0.1 undecidable manual P 67 43.1235 50 0.63 81
IV.ARRO.EHZ. 2016-08-25T00:26:43.02 0.1 undecidable manual P 237 41.9247 50 0.39 87
IV.FEMA.HNE. 2016-08-25T00:26:42.86 0.1 undecidable manual S 329 22.8549 112 -0.26 93
IV.GUMA.HHZ. 2016-08-25T00:26:41.32 0.1 undecidable manual P 20 32.6451 50 0.12 94
IV.CESI.HHZ. 2016-08-25T00:26:41.36 0.1 undecidable manual P 316 33.9438 50 -0.03 95
IV.CAMP.HHE. 2016-08-25T00:26:41.21 0.1 undecidable manual P 148 32.745 50 -0.01 96
IV.TERO.HHZ. 2016-08-25T00:26:41.79 0.1 undecidable manual P 118 37.8288 50 -0.21 91
IV.CSP1.EHZ. 2016-08-25T00:26:41.17 0.1 undecidable manual P 1 33.9438 50 -0.22 92
IV.FDMO.HHZ. 2016-08-25T00:26:40.45 0.1 undecidable manual P 342 29.1486 50 -0.2 93
IV.FEMA.HNE. 2016-08-25T00:26:39.12 0.1 undecidable manual P 329 22.8549 112 -0.37 90
IV.NRCA.HNZ. 2016-08-25T00:26:38.95 0.1 undecidable manual S 308 8.4804 138 0.01 100
IV.NRCA.HNZ. 2016-08-25T00:26:37.42 0.1 positive manual P 308 8.4804 138 0.34 93
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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