Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 25-09-2016 and time 05:10:50 (Italy) in region 6 km NW Arquata del Tronto (AP)

A magnitude ML 1.8 earthquake occured in region: 6 km NW Arquata del Tronto (AP), on

  • 25-09-2016 03:10:50 (UTC)
  • 25-09-2016 05:10:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8090, 13.2370 at 7 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
Arquata del Tronto AP 6 1178 1178
Montegallo AP 9 523 1701
Castelsantangelo sul Nera MC 12 281 1982
Norcia PG 12 4957 6939
Montemonaco AP 13 604 7543
Accumoli RI 13 667 8210
Acquasanta Terme AP 15 2916 11126
Ussita MC 17 444 11570
Montefortino FM 17 1178 12748
Preci PG 18 724 13472
Visso MC 18 1107 14579

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km W of Teramo (54892 inhabitants)
46 Km E of Foligno (57155 inhabitants)
53 Km N of L'Aquila (69753 inhabitants)
56 Km NE of Terni (111501 inhabitants)
77 Km E of Perugia (166134 inhabitants)
82 Km W of Montesilvano (53738 inhabitants)
89 Km W of Pescara (121014 inhabitants)
92 Km NW of Chieti (51815 inhabitants)
93 Km S of Ancona (100861 inhabitants)
99 Km NE of Guidonia Montecelio (88673 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 1.8 2016-09-25
03:10:50		 42.8093 13.237 7 2016-09-25
03:25:12		 Sala Sismica INGV-Roma 29503051
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-09-25 03:10:50 ± 0.06
Latitude 42.8093 ± 0.0027
Longitude 13.2370 ± 0.0049
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 29503051

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 392
Semi-minor axis of confidence ellipse (meter) 191
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 251
Circular confidence region, given by single value of horizontal uncertainty (meter) 390.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 53
Number of associated phases, regardless of their use for origin computation 59
Number of defining phases 53
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.94429
Number of stations at which the event was observed 37
Number of stations from which data was used for origin computation 31
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 21
Type of magnitude ML
Reference to an origin 29503051
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-09-25 03:25:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FRON.EHZ. 2016-09-25T03:11:18.66 0.6 undecidable manual S 332 88.8444 50 1.08 31
IV.SSFR.HHZ. 2016-09-25T03:11:16.06 0.3 undecidable manual S 332 78.6657 50 1.17 45
IV.CING.HHZ. 2016-09-25T03:11:11.38 0.3 undecidable manual S 357 62.8926 50 0.71 57
IV.ATCC.EHZ. 2016-09-25T03:11:11.42 0.3 undecidable manual S 311 63.8916 50 0.48 62
IV.EL6.EHZ. 2016-09-25T03:11:10.17 0.3 undecidable manual S 349 58.6968 50 0.62 59
IV.FSSB.HHZ. 2016-09-25T03:11:09.03 0.6 negative manual P 339 104.8173 50 0.41 39
IV.GAG1.HNZ. 2016-09-25T03:11:08.99 3.0 undecidable manual S 1.22 0
IV.MPAG.EHZ. 2016-09-25T03:11:08.10 3.0 negative manual P 0.16 0
IV.SNTG.HHZ. 2016-09-25T03:11:08.55 0.3 undecidable manual S 334 55.0005 50 0 69
IV.SSM1.HNZ. 2016-09-25T03:11:07.99 3.0 undecidable manual S 1.58 0
IV.ATVO.HHZ. 2016-09-25T03:11:06.44 3.0 negative manual P -0.43 0
IV.FRON.EHZ. 2016-09-25T03:11:05.78 0.1 undecidable manual P 332 88.8444 50 -0.37 80
IV.SSFR.HHZ. 2016-09-25T03:11:04.63 0.1 undecidable manual P 332 78.6657 50 0.04 88
IV.ARVD.HHZ. 2016-09-25T03:11:04.53 0.1 undecidable manual P 343 80.0643 50 -0.27 83
IV.CAMP.HHZ. 2016-09-25T03:11:02.10 0.3 undecidable manual S 155 33.4443 102 -0.29 68
IV.RM33.EHZ. 2016-09-25T03:11:02.92 0.3 undecidable manual S 183 33.3444 102 0.55 64
IV.CESI.HHZ. 2016-09-25T03:11:02.81 0.3 undecidable manual S 309 34.6431 102 0 72
IV.FAGN.HHZ. 2016-09-25T03:11:02.84 3.0 negative manual P 0.05 0
IV.TERO.HHZ. 2016-09-25T03:11:02.95 0.1 undecidable manual S 125 36.3414 101 -0.44 87
IV.TRTR.HHZ. 2016-09-25T03:11:02.03 3.0 negative manual P 1.09 0
IV.CING.HHZ. 2016-09-25T03:11:01.86 0.3 undecidable manual P 357 62.8926 50 -0.3 64
IV.CSP1.EHZ. 2016-09-25T03:11:01.60 0.3 undecidable manual S 355 31.4463 103 -0.12 71
IV.EL6.EHZ. 2016-09-25T03:11:01.05 0.1 undecidable manual P 349 58.6968 50 -0.47 83
IV.LNSS.HHZ. 2016-09-25T03:11:01.12 0.3 undecidable manual S 215 27.9498 104 0.58 64
IV.ATCC.EHZ. 2016-09-25T03:11:01.94 0.1 positive manual P 311 63.8916 50 -0.38 84
IV.GUMA.HHZ. 2016-09-25T03:11:01.52 0.1 undecidable manual S 16 29.2485 104 0.55 86
IV.FIAM.HHZ. 2016-09-25T03:11:01.36 0.3 undecidable manual P 189 60.7947 50 -0.48 62
IV.SNTG.HHZ. 2016-09-25T03:11:00.52 0.3 undecidable manual P 334 55.0005 50 -0.42 64
IV.FDMO.HHZ. 2016-09-25T03:11:00.26 0.3 undecidable manual S 334 27.9498 104 -0.29 69
IV.GIGS.HHZ. 2016-09-25T03:10:59.44 0.1 undecidable manual P 145 48.1185 50 -0.44 86
IV.OFFI.HHZ. 2016-09-25T03:10:58.95 0.1 undecidable manual P 69 39.0276 50 0.47 86
IV.T1247.HHZ. 2016-09-25T03:10:58.44 0.3 undecidable manual P 173 41.1255 50 -0.36 66
XO.AM05.EHZ. 2016-09-25T03:10:58.28 0.1 undecidable manual S 27 20.868 109 0.09 97
IV.TERO.HHZ. 2016-09-25T03:10:57.42 0.1 undecidable manual P 125 36.3414 101 -0.54 85
IV.T1241.HHZ. 2016-09-25T03:10:57.14 0.3 undecidable manual S 72 16.6722 113 0.33 69
IV.T1204.EHZ. 2016-09-25T03:10:57.18 0.1 undecidable manual S 156 16.1727 114 0.53 88
IV.RM33.EHZ. 2016-09-25T03:10:57.19 0.1 undecidable manual P 183 33.3444 102 -0.18 93
IV.CESI.HHZ. 2016-09-25T03:10:57.23 0.1 undecidable manual P 309 34.6431 102 -0.39 89
IV.LNSS.HHZ. 2016-09-25T03:10:56.34 0.1 negative manual P 215 27.9498 104 0.03 97
IV.T1202.EHZ. 2016-09-25T03:10:56.43 0.3 undecidable manual S 185 11.7771 121 1.13 51
IV.GUMA.HHZ. 2016-09-25T03:10:56.65 0.1 undecidable manual P 16 29.2485 104 0.09 95
IV.T1215.EHZ. 2016-09-25T03:10:56.48 0.1 undecidable manual P 269 30.0477 103 -0.23 92
IV.T1217.EHZ. 2016-09-25T03:10:56.15 0.1 undecidable manual P 247 27.1506 105 0 97
IV.CAMP.HHZ. 2016-09-25T03:10:56.97 0.1 undecidable manual P 155 33.4443 102 -0.41 88
IV.CSP1.EHZ. 2016-09-25T03:10:56.57 0.1 undecidable manual P 355 31.4463 103 -0.42 88
IV.FDMO.HHZ. 2016-09-25T03:10:55.99 0.1 undecidable manual P 334 27.9498 104 -0.33 91
IV.MC2.EHZ. 2016-09-25T03:10:55.56 0.1 undecidable manual S 341 11.9769 121 0.2 96
IV.MMO1.HNZ. 2016-09-25T03:10:55.31 0.1 undecidable manual S 36 12.3765 120 -0.17 97
XO.AM05.EHZ. 2016-09-25T03:10:55.01 0.1 positive manual P 27 20.868 109 0.06 97
IV.T1204.EHZ. 2016-09-25T03:10:54.40 0.1 negative manual P 156 16.1727 114 0.33 93
IV.T1216.EHZ. 2016-09-25T03:10:54.68 0.1 undecidable manual P 297 19.869 110 -0.09 97
IV.NRCA.HNZ. 2016-09-25T03:10:54.87 0.1 undecidable manual S 285 10.3785 124 -0.01 100
IV.T1241.HHZ. 2016-09-25T03:10:54.29 0.1 undecidable manual P 72 16.6722 113 0.14 96
IV.MC2.EHZ. 2016-09-25T03:10:53.42 0.1 negative manual P 341 11.9769 121 0.1 98
IV.MMO1.HNZ. 2016-09-25T03:10:53.36 0.1 undecidable manual P 36 12.3765 120 -0.03 99
IV.T1202.EHZ. 2016-09-25T03:10:53.73 0.1 negative manual P 185 11.7771 121 0.44 91
IV.NRCA.HNZ. 2016-09-25T03:10:53.17 0.1 positive manual P 285 10.3785 124 0.12 98
IV.T1242.HHZ. 2016-09-25T03:10:52.82 0.1 undecidable manual S 310 3.4965 154 -0.45 92
IV.T1242.HHZ. 2016-09-25T03:10:52.01 0.1 undecidable manual P 310 3.4965 154 -0.1 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
XO.AM05.EHN. ML:2.1 0.000907 1.2 AML other m 2016-09-25T03:10:58.45
XO.AM05.HNN. ML:1.5 0.0002415 1.38 AML other m 2016-09-25T03:10:58.45
XO.AM05.HNE. ML:1.5 0.000261 0.12 AML other m 2016-09-25T03:11:00.05
XO.AM05.EHE. ML:2.1 0.0010394999999999998 0.96 AML other m 2016-09-25T03:11:00.05
IV.ATCC.EHE. ML:1.8 0.00012555 1.14 AML other m 2016-09-25T03:11:13.22
IV.ATCC.EHN. ML:1.6 0.00008415 0.36 AML other m 2016-09-25T03:11:13.55
IV.CAMP.HHN. ML:1.3 0.00009565 1.54 AML other m 2016-09-25T03:11:03.08
IV.CAMP.HHE. ML:1.4 0.0001053 0.7 AML other m 2016-09-25T03:11:02.20
IV.CESI.HHN. ML:2.0 0.00039600000000000003 0.42 AML other m 2016-09-25T03:11:03.24
IV.CESI.HHE. ML:1.7 0.00022749999999999997 1.58 AML other m 2016-09-25T03:11:03.57
IV.CSP1.EHN. ML:2.0 0.00041299999999999996 1.08 AML other m 2016-09-25T03:11:02.09
IV.CSP1.EHE. ML:1.8 0.00028199999999999997 0.52 AML other m 2016-09-25T03:11:01.74
IV.FAGN.HHN. ML:1.6 0.00006484999999999999 0.28 AML other m 2016-09-25T03:11:17.07
IV.FAGN.HHE. ML:1.6 0.00007775 0.26 AML other m 2016-09-25T03:11:17.40
IV.FDMO.HHN. ML:1.7 0.0002825 1.48 AML other m 2016-09-25T03:11:00.94
IV.FDMO.HHE. ML:1.6 0.00022349999999999998 0.76 AML other m 2016-09-25T03:11:00.71
IV.FIAM.HHN. ML:1.3 0.0000436 0.46 AML other m 2016-09-25T03:11:14.96
IV.FIAM.HHE. ML:1.2 0.00003025 1.1 AML other m 2016-09-25T03:11:23.37
IV.FSSB.HHE. ML:2.0 0.00009575 1.24 AML other m 2016-09-25T03:11:25.33
IV.FSSB.HHN. ML:2.0 0.00008905 1.1 AML other m 2016-09-25T03:11:26.18
IV.GIGS.HHE. ML:1.0 0.000027049999999999997 0.2 AML other m 2016-09-25T03:11:06.88
IV.GIGS.HHN. ML:1.0 0.000030449999999999998 0.44 AML other m 2016-09-25T03:11:07.08
IV.GUMA.HHN. ML:2.0 0.0005920000000000001 0.66 AML other m 2016-09-25T03:11:01.58
IV.GUMA.HHE. ML:2.1 0.0006825 0.52 AML other m 2016-09-25T03:11:04.27
IV.LNSS.HHN. ML:1.8 0.0003465 0.38 AML other m 2016-09-25T03:11:02.20
IV.LNSS.HHE. ML:1.9 0.0003905 0.52 AML other m 2016-09-25T03:11:02.03
IV.NRCA.HHN. ML:2.3 0.00296 0.16 AML other m 2016-09-25T03:10:55.59
IV.NRCA.HNN. ML:2.3 0.0027350000000000005 0.16 AML other m 2016-09-25T03:10:55.51
IV.NRCA.HNE. ML:2.2 0.0021950000000000003 0.22 AML other m 2016-09-25T03:10:55.13
IV.NRCA.HHE. ML:2.2 0.0024000000000000002 0.22 AML other m 2016-09-25T03:10:55.24
IV.OFFI.HHN. ML:1.7 0.00018449999999999999 1.5 AML other m 2016-09-25T03:11:19.55
IV.OFFI.HHE. ML:1.6 0.0001395 0.7 AML other m 2016-09-25T03:11:10.20
IV.RM33.EHN. ML:1.4 0.00011662 0.4 AML other m 2016-09-25T03:11:04.99
IV.RM33.EHE. ML:1.4 0.00010385 0.82 AML other m 2016-09-25T03:11:05.54
IV.SNTG.HHE. ML:1.7 0.00011399999999999999 0.14 AML other m 2016-09-25T03:11:09.30
IV.SNTG.HHN. ML:1.6 0.0000891 0.12 AML other m 2016-09-25T03:11:09.25
IV.SSFR.HHN. ML:2.0 0.00014150000000000002 0.18 AML other m 2016-09-25T03:11:17.09
IV.SSFR.HHE. ML:2.1 0.0001975 0.22 AML other m 2016-09-25T03:11:16.26
IV.T1202.EHE. ML:2.0 0.0012989000000000002 0.14 AML other m 2016-09-25T03:10:57.17
IV.T1202.EHN. ML:2.2 0.002085 0.58 AML other m 2016-09-25T03:10:57.68
IV.T1241.HHE. ML:1.7 0.0004485 0.98 AML other m 2016-09-25T03:10:57.28
IV.T1241.HHN. ML:1.8 0.0005529999999999999 0.54 AML other m 2016-09-25T03:10:59.79
IV.T1241.HNN. ML:1.8 0.0006464999999999999 0.54 AML other m 2016-09-25T03:10:59.79
IV.T1241.HNE. ML:1.7 0.0004703 1.3 AML other m 2016-09-25T03:10:59.86
IV.T1247.HHE. ML:1.5 0.00010815 0.94 AML other m 2016-09-25T03:11:11.15
IV.T1247.HHN. ML:1.6 0.0001209 0.38 AML other m 2016-09-25T03:11:09.91
IV.TERO.HHN. ML:2.1 0.00046100000000000004 0.2 AML other m 2016-09-25T03:11:03.08
IV.TERO.HHE. ML:1.9 0.00030199999999999997 0.46 AML other m 2016-09-25T03:11:03.31
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