Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 25-09-2016 and time 05:08:51 (Italy) in region 7 km W Montegallo (AP)

A magnitude ML 1.6 earthquake occured in region: 7 km W Montegallo (AP), on

  • 25-09-2016 03:08:51 (UTC)
  • 25-09-2016 05:08:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8540, 13.2490 at 9 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Montegallo AP 7 523 523
Montemonaco AP 8 604 1127
Castelsantangelo sul Nera MC 9 281 1408
Arquata del Tronto AP 10 1178 2586
Montefortino FM 13 1178 3764
Ussita MC 14 444 4208
Norcia PG 14 4957 9165
Visso MC 16 1107 10272
Bolognola MC 16 142 10414
Acquasanta Terme AP 16 2916 13330
Amandola FM 17 3629 16959
Preci PG 17 724 17683
Accumoli RI 18 667 18350
Comunanza AP 18 3166 21516
Palmiano AP 18 196 21712
Roccafluvione AP 19 2010 23722

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km NW of Teramo (54892 inhabitants)
46 Km E of Foligno (57155 inhabitants)
57 Km N of L'Aquila (69753 inhabitants)
59 Km NE of Terni (111501 inhabitants)
75 Km E of Perugia (166134 inhabitants)
83 Km W of Montesilvano (53738 inhabitants)
88 Km S of Ancona (100861 inhabitants)
90 Km W of Pescara (121014 inhabitants)
94 Km NW of Chieti (51815 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
Reviewed
Rev100 		ML 1.6 2016-09-25
03:08:51		 42.8537 13.2488 9 2016-09-25
03:18:13		 Sala Sismica INGV-Roma 29502951
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-09-25 03:08:51 ± 0.04
Latitude 42.8537 ± 0.0027
Longitude 13.2488 ± 0.0037
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 29502951

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 260
Semi-minor axis of confidence ellipse (meter) 233
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 290
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) 42
Number of associated phases, regardless of their use for origin computation 37
Number of defining phases 30
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.34804
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 17
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 29502951
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-09-25 03:18:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FIAM.HHZ. 2016-09-25T03:09:11.99 3.0 undecidable manual S -0.45 0
IV.RM33.EHZ. 2016-09-25T03:09:04.30 0.3 undecidable manual S 184 38.3283 50 0.18 69
IV.TERO.HHZ. 2016-09-25T03:09:03.94 0.3 undecidable manual S 131 38.628 50 -0.26 67
IV.T1217.EHZ. 2016-09-25T03:09:02.03 0.3 undecidable manual S 239 30.2475 50 0.07 71
IV.CING.HHZ. 2016-09-25T03:09:02.36 3.0 negative manual P 0.33 0
IV.LNSS.HHZ. 2016-09-25T03:09:02.78 0.3 undecidable manual S 211 32.5452 50 0.19 69
IV.T1215.EHZ. 2016-09-25T03:09:02.22 0.3 undecidable manual S 260 31.4463 50 -0.07 71
IV.FAGN.HHZ. 2016-09-25T03:09:01.33 3.0 negative manual P -2.51 0
IV.EL6.EHZ. 2016-09-25T03:09:01.58 3.0 positive manual P 0.21 0
IV.CSP1.EHZ. 2016-09-25T03:09:00.89 0.3 undecidable manual S 352 26.6511 109 0.06 72
IV.FDMO.HHZ. 2016-09-25T03:09:00.08 0.1 undecidable manual S 327 24.1536 111 0.07 96
IV.SNTG.HHZ. 2016-09-25T03:09:00.83 3.0 undecidable manual P -0.02 0
IV.T1202.EHZ. 2016-09-25T03:08:58.19 0.6 undecidable manual S 187 16.7721 119 0.51 44
IV.TERO.HHZ. 2016-09-25T03:08:58.49 0.3 undecidable manual P 131 38.628 50 -0.14 69
IV.RM33.EHZ. 2016-09-25T03:08:58.61 0.3 undecidable manual P 184 38.3283 50 0.02 71
IV.CAMP.HHZ. 2016-09-25T03:08:58.18 3.0 undecidable manual P -0.12 0
IV.T1215.EHZ. 2016-09-25T03:08:57.36 0.1 undecidable manual P 260 31.4463 50 -0.17 93
IV.T1241.HHZ. 2016-09-25T03:08:57.02 0.3 undecidable manual S 89 14.874 122 -0.08 73
IV.T1217.EHZ. 2016-09-25T03:08:57.16 0.1 undecidable manual P 239 30.2475 50 -0.18 93
XO.AM05.EHZ. 2016-09-25T03:08:57.61 0.3 undecidable manual S 32 16.1727 120 0.12 72
IV.LNSS.HHZ. 2016-09-25T03:08:57.48 0.1 undecidable manual P 211 32.5452 50 -0.22 92
IV.NRCA.HNZ. 2016-09-25T03:08:56.05 0.1 undecidable manual S 259 11.1777 130 -0.02 99
IV.CSP1.EHZ. 2016-09-25T03:08:56.73 0.1 undecidable manual P 352 26.6511 109 0.04 96
IV.FDMO.HHZ. 2016-09-25T03:08:56.15 0.1 undecidable manual P 327 24.1536 111 -0.06 96
IV.SMA1.EHZ. 2016-09-25T03:08:56.32 3.0 positive manual P 0.01 0
IV.T1243.HHZ. 2016-09-25T03:08:56.16 0.3 undecidable manual P 137 23.8539 111 0.01 73
IV.T1204.EHZ. 2016-09-25T03:08:55.62 0.1 undecidable manual P 164 20.4684 114 0.09 96
IV.T1202.EHZ. 2016-09-25T03:08:55.13 0.1 undecidable manual P 187 16.7721 119 0.26 93
IV.T1216.EHZ. 2016-09-25T03:08:55.32 0.1 undecidable manual P 282 19.1697 116 0.03 98
IV.MMO1.EHZ. 2016-09-25T03:08:54.96 0.3 undecidable manual S 51 8.0808 139 -0.35 70
XO.AM05.EHZ. 2016-09-25T03:08:54.99 0.1 positive manual P 32 16.1727 120 0.23 94
IV.NRCA.HNZ. 2016-09-25T03:08:54.06 0.1 undecidable manual P 259 11.1777 130 0.12 97
IV.T1242.HHZ. 2016-09-25T03:08:54.09 0.1 undecidable manual S 233 4.4955 154 -0.52 90
IV.T1241.HHZ. 2016-09-25T03:08:54.65 0.1 undecidable manual P 89 14.874 122 0.11 97
IV.T1242.HHZ. 2016-09-25T03:08:53.06 0.1 undecidable manual P 233 4.4955 154 -0.04 100
IV.MMO1.EHZ. 2016-09-25T03:08:53.50 0.1 undecidable manual P 51 8.0808 139 0 100
IV.MC2.EHZ. 2016-09-25T03:08:53.65 0.1 undecidable manual P 323 8.0808 139 0.16 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
XO.AM05.EHN. ML:1.7 0.0004535 0.14 AML other m 2016-09-25T03:08:57.72
XO.AM05.EHE. ML:1.7 0.000437 1.22 AML other m 2016-09-25T03:08:57.92
IV.FDMO.HHN. ML:1.2 0.00011130000000000001 0.22 AML other m 2016-09-25T03:09:00.34
IV.FDMO.HHE. ML:1.0 0.0000711 0.22 AML other m 2016-09-25T03:09:00.37
IV.LNSS.HHE. ML:1.6 0.00016399999999999997 0.26 AML other m 2016-09-25T03:09:03.01
IV.LNSS.HHN. ML:1.4 0.0001185 0.4 AML other m 2016-09-25T03:09:02.96
IV.NRCA.HHN. ML:1.6 0.000585 0.14 AML other m 2016-09-25T03:08:56.28
IV.NRCA.HHE. ML:1.7 0.0006554999999999999 0.94 AML other m 2016-09-25T03:08:56.11
IV.SMA1.EHN. ML:2.0 0.0005685 0.26 AML other m 2016-09-25T03:09:47.65
IV.SMA1.EHE. ML:1.9 0.0005185 0.26 AML other m 2016-09-25T03:09:47.95
IV.T1241.HHE. ML:1.5 0.0003265 0.22 AML other m 2016-09-25T03:08:57.29
IV.T1241.HHN. ML:1.1 0.0001205 0.92 AML other m 2016-09-25T03:08:57.33
IV.T1242.HHE. ML:1.9 0.001355 0.16 AML other m 2016-09-25T03:08:54.22
IV.T1242.HHN. ML:2.3 0.003675 0.28 AML other m 2016-09-25T03:08:54.28
IV.TERO.HHE. ML:1.1 0.0000475 0.26 AML other m 2016-09-25T03:09:04.17
IV.TERO.HHN. ML:1.3 0.0000747 0.44 AML other m 2016-09-25T03:09:04.59
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