Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 25-08-2016 and time 23:28:10 (UTC) in region 6 km NE Norcia (PG)

A magnitude ML 2.0 earthquake occured in region: 6 km NE Norcia (PG), on

  • 25-08-2016 23:28:10 (UTC)
  • 26-08-2016 01:28:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8240, 13.1500 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
Norcia PG 6 4957 4957
Castelsantangelo sul Nera MC 8 281 5238
Preci PG 11 724 5962
Visso MC 13 1107 7069
Arquata del Tronto AP 13 1178 8247
Ussita MC 14 444 8691
Montegallo AP 15 523 9214
Cascia PG 16 3217 12431
Accumoli RI 16 667 13098
Montemonaco AP 17 604 13702
Cerreto di Spoleto PG 19 1075 14777
Sellano PG 20 1079 15856
Bolognola MC 20 142 15998

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km E of Foligno (57155 inhabitants)
49 Km W of Teramo (54892 inhabitants)
50 Km NE of Terni (111501 inhabitants)
56 Km NW of L'Aquila (69753 inhabitants)
70 Km E of Perugia (166134 inhabitants)
89 Km W of Montesilvano (53738 inhabitants)
93 Km SW of Ancona (100861 inhabitants)
96 Km W of Pescara (121014 inhabitants)
97 Km E of Viterbo (67173 inhabitants)
98 Km NE of Guidonia Montecelio (88673 inhabitants)
99 Km NW of Chieti (51815 inhabitants)
100 Km N 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 2.0 2016-08-25
23:28:10		 42.8242 13.1503 10 2019-02-12
13:57:24		 Bollettino Sismico Italiano INGV 35948681
Reviewed
Rev100 		ML 2.0 2016-08-25
23:28:10		 42.8242 13.1417 10 2016-08-25
23:37:21		 Sala Sismica INGV-Roma 27247741
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-08-25 23:28:10 ± 0.04
Latitude 42.8242 ± 0.0027
Longitude 13.1503 ± 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 35948681

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 379
Semi-minor axis of confidence ellipse (meter) 203
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 94
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) 38
Number of associated phases, regardless of their use for origin computation 52
Number of defining phases 49
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.69068
Number of stations at which the event was observed 33
Number of stations from which data was used for origin computation 30
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.4
Num. used stations 9
Type of magnitude ML
Reference to an origin 35948681
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2016-12-07 13:22:16

ML:2.0

Field Value
Value 2.0
Uncertainty 0.4
Num. used stations 3
Type of magnitude ML
Reference to an origin 27247741
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-08-25 23:37:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FSSB.HHZ. 2016-08-25T23:28:43.99 3.0 undecidable manual S 0.35 0
IV.NARO.HHZ. 2016-08-25T23:28:42.99 3.0 undecidable manual S -0.26 0
IV.FIAM.HNN. 2016-08-25T23:28:30.13 0.6 undecidable manual S 183 61.7937 50 -0.01 46
IV.EL6.EHZ. 2016-08-25T23:28:29.29 0.6 undecidable manual S 356 56.1993 50 0.63 40
IV.CESX.HHZ. 2016-08-25T23:28:27.99 3.0 undecidable manual S -0.35 0
IV.SNTG.HHZ. 2016-08-25T23:28:27.22 0.6 undecidable manual S 340 50.7159 50 0.01 47
IV.MNTP.HNE. 2016-08-25T23:28:26.86 0.6 undecidable manual S 37 43.3233 50 1.63 24
IV.TERO.HHN. 2016-08-25T23:28:24.72 0.6 undecidable manual S 121 43.2234 50 -0.47 43
IV.ARRO.EHZ. 2016-08-25T23:28:24.58 0.6 undecidable manual S 229 41.5251 50 -0.16 46
IV.ARVD.HHZ. 2016-08-25T23:28:24.50 0.6 undecidable manual P 347 76.6677 50 0.19 43
IV.FIAM.HNN. 2016-08-25T23:28:22.80 0.6 undecidable manual P 183 61.7937 50 0.79 37
IV.ATCC.EHE. 2016-08-25T23:28:21.62 0.6 undecidable manual P 314 57.5979 50 0.25 44
IV.CESI.HHZ. 2016-08-25T23:28:21.10 0.3 undecidable manual S 315 28.2495 50 -0.12 71
IV.CSP1.EHZ. 2016-08-25T23:28:21.40 0.3 undecidable manual S 8 30.0477 50 -0.28 69
IV.LNSS.HHZ. 2016-08-25T23:28:20.47 0.3 undecidable manual S 200 26.1516 110 -0.1 72
IV.SNTG.HHZ. 2016-08-25T23:28:20.11 0.6 undecidable manual P 340 50.7159 50 -0.2 45
IV.EL6.EHZ. 2016-08-25T23:28:20.90 0.6 undecidable manual P 356 56.1993 50 -0.25 44
IV.ASSB.HHN. 2016-08-25T23:28:20.24 0.6 undecidable manual P 301 46.7199 50 0.55 42
IV.GIGS.HHN. 2016-08-25T23:28:20.60 0.6 undecidable manual P 140 53.7018 50 -0.17 45
IV.MNTP.HNE. 2016-08-25T23:28:19.53 0.6 undecidable manual P 37 43.3233 50 0.36 44
IV.OFFI.HHE. 2016-08-25T23:28:19.96 0.6 undecidable manual P 74 45.2214 50 0.5 42
IV.T1201.HNN. 2016-08-25T23:28:19.01 0.3 undecidable manual S 156 20.2686 116 0.32 69
IV.T1215.EHZ. 2016-08-25T23:28:19.43 0.3 undecidable manual S 264 23.0547 113 -0.15 71
IV.FDMO.HHZ. 2016-08-25T23:28:19.60 0.3 undecidable manual S 348 24.1536 112 -0.31 69
IV.T1211.HNN. 2016-08-25T23:28:18.68 0.6 undecidable manual P 217 40.3263 50 -0.02 47
IV.TERO.HHN. 2016-08-25T23:28:18.52 0.6 undecidable manual P 121 43.2234 50 -0.63 41
IV.MDAR.HNN. 2016-08-25T23:28:18.57 0.3 undecidable manual P 359 40.9257 50 -0.23 68
IV.ARRO.EHZ. 2016-08-25T23:28:18.77 0.6 undecidable manual P 229 41.5251 50 -0.12 46
IV.GUMA.HHZ. 2016-08-25T23:28:17.17 0.3 undecidable manual P 29 30.4473 50 -0.01 72
IV.T1218.HNE. 2016-08-25T23:28:17.79 0.1 undecidable manual S 190 17.3715 119 0 99
IV.T1212.HNE. 2016-08-25T23:28:16.40 0.3 undecidable manual S 227 11.7771 129 0.2 72
IV.LNSS.HHZ. 2016-08-25T23:28:16.28 0.1 undecidable manual P 200 26.1516 110 -0.2 94
IV.CESI.HHZ. 2016-08-25T23:28:16.74 0.1 undecidable manual P 315 28.2495 50 -0.11 95
IV.CSP1.EHZ. 2016-08-25T23:28:16.84 0.1 undecidable manual P 8 30.0477 50 -0.28 91
IV.FDMO.HHZ. 2016-08-25T23:28:15.89 0.1 undecidable manual P 348 24.1536 112 -0.21 94
IV.T1214.HNE. 2016-08-25T23:28:15.25 0.3 undecidable manual S 146 8.5803 138 -0.14 73
IV.MC2.EHZ. 2016-08-25T23:28:15.94 0.3 undecidable manual S 18 10.1787 134 0.16 73
IV.T1213.HNE. 2016-08-25T23:28:15.84 0.3 undecidable manual S 190 11.1777 131 -0.19 72
IV.FEMA.HNE. 2016-08-25T23:28:15.09 0.3 undecidable manual P 332 17.3715 119 0.21 71
IV.T1201.HNN. 2016-08-25T23:28:15.52 0.1 undecidable manual P 156 20.2686 116 0.13 96
IV.T1241.HHN. 2016-08-25T23:28:15.52 0.1 undecidable manual P 81 23.1546 113 -0.4 90
IV.T1215.EHZ. 2016-08-25T23:28:15.89 0.3 undecidable manual P 264 23.0547 113 -0.02 73
IV.T1242.HHZ. 2016-08-25T23:28:14.41 0.3 undecidable manual S 83 4.3956 155 -0.19 73
IV.NRCA.HNZ. 2016-08-25T23:28:14.36 0.3 undecidable manual S 290 3.0969 162 -0.07 75
IV.T1218.HNE. 2016-08-25T23:28:14.86 0.1 undecidable manual P 190 17.3715 119 -0.02 99
IV.T1212.HNE. 2016-08-25T23:28:14.23 0.1 positive manual P 227 11.7771 129 0.27 95
IV.T1202.EHE. 2016-08-25T23:28:14.52 0.6 undecidable manual P 156 14.6742 123 0.1 49
IV.T1213.HNE. 2016-08-25T23:28:13.90 0.1 positive manual P 190 11.1777 131 0.04 99
IV.T1242.HHZ. 2016-08-25T23:28:13.09 0.1 undecidable manual P 83 4.3956 155 0.06 100
IV.NRCA.HNZ. 2016-08-25T23:28:13.11 0.1 positive manual P 290 3.0969 162 0.17 98
IV.T1214.HNE. 2016-08-25T23:28:13.63 0.1 undecidable manual P 146 8.5803 138 0.14 98
IV.MC2.EHZ. 2016-08-25T23:28:13.91 0.1 negative manual P 18 10.1787 134 0.19 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARRO.EHE. ML:1.5 0.0001025 0.98 AML other m 2016-08-25T23:28:25.63
IV.ARRO.EHN. ML:1.7 0.00017685000000000002 0.74 AML other m 2016-08-25T23:28:25.75
IV.CESI.HHN. ML:1.7 0.00027434555 0.1152 AML other m 2016-08-25T23:28:22.09
IV.CESI.HHE. ML:1.6 0.00019251035 0.1792 AML other m 2016-08-25T23:28:21.91
IV.CSP1.EHN. ML:1.7 0.00025979730000000003 0.1792 AML other m 2016-08-25T23:28:21.68
IV.CSP1.EHE. ML:1.7 0.0002499474999999999 0.2048 AML other m 2016-08-25T23:28:22.28
IV.FDMO.HHE. ML:1.6 0.00025688444999999997 0.1664 AML other m 2016-08-25T23:28:21.59
IV.FDMO.HHN. ML:1.6 0.00023288095 0.2048 AML other m 2016-08-25T23:28:21.34
IV.LNSS.HHN. ML:2.2 0.0009937048 0.192 AML other m 2016-08-25T23:28:20.85
IV.LNSS.HHE. ML:2.2 0.0009516234 0.2816 AML other m 2016-08-25T23:28:20.64
IV.MC2.EHE. ML:2.2 0.0021999999999999993 0.68 AML other m 2016-08-25T23:28:16.45
IV.MC2.EHN. ML:2.3 0.0023500000000000005 0.68 AML other m 2016-08-25T23:28:16.79
IV.NRCA.HNE. ML:2.7 0.008805 0.1 AML other m 2016-08-25T23:28:15.06
IV.NRCA.HHE. ML:2.7 0.009785 0.12 AML other m 2016-08-25T23:28:15.06
IV.NRCA.HHN. ML:2.7 0.010385000000000002 0.1 AML other m 2016-08-25T23:28:15.21
IV.NRCA.HNN. ML:2.7 0.00942 0.12 AML other m 2016-08-25T23:28:15.22
IV.T1243.HHN. ML:2.0 0.0005625881500000001 0.2176 AML other m 2016-08-25T23:28:21.69
IV.T1243.HHE. ML:2.2 0.0009040486999999999 0.2432 AML other m 2016-08-25T23:28:21.69
IV.T1243.HNN. ML:2.0 0.0005713782000000001 0.2048 AML other m 2016-08-25T23:28:21.59
IV.T1243.HNE. ML:2.2 0.0009255595 0.256 AML other m 2016-08-25T23:28:21.57
IV.TERO.HHE. ML:1.6 0.00013687005 0.1024 AML other m 2016-08-25T23:28:25.86
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