Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 20-10-2013 and time 01:20:58 (UTC) in region 3 km NE Montegallo (AP)

A magnitude ML 2.0 earthquake occured in region: 3 km NE Montegallo (AP), on

  • 20-10-2013 01:20:58 (UTC)
  • 20-10-2013 03:20:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8700, 13.3530 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.

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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 3 523 523
Montemonaco AP 4 604 1127
Montefortino FM 8 1178 2305
Palmiano AP 9 196 2501
Roccafluvione AP 10 2010 4511
Comunanza AP 11 3166 7677
Venarotta AP 12 2066 9743
Arquata del Tronto AP 12 1178 10921
Acquasanta Terme AP 12 2916 13837
Amandola FM 12 3629 17466
Force AP 15 1354 18820
Montefalcone Appennino FM 16 424 19244
Castelsantangelo sul Nera MC 17 281 19525
Smerillo FM 17 365 19890
Bolognola MC 17 142 20032
Ascoli Piceno AP 18 49407 69439
Sarnano MC 19 3264 72703
Valle Castellana TE 19 977 73680
Ussita MC 19 444 74124
Monte San Martino MC 19 765 74889
Rotella AP 20 906 75795

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km NW of Teramo (54892 inhabitants)
54 Km E of Foligno (57155 inhabitants)
58 Km N of L'Aquila (69753 inhabitants)
67 Km NE of Terni (111501 inhabitants)
76 Km NW of Montesilvano (53738 inhabitants)
83 Km E of Perugia (166134 inhabitants)
84 Km NW of Pescara (121014 inhabitants)
84 Km S of Ancona (100861 inhabitants)
88 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
Bulletin
Rev1000 		ML 2.0 2013-10-20
01:20:58		 42.8702 13.353 11 2015-01-20
11:29:30		 Bollettino Sismico Italiano INGV 4910961
Reviewed
Rev100 		ML 2.0 2013-10-20
01:20:58		 42.8572 13.3318 23 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 4695771
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2013-10-20 01:20:58 ± 0.13
Latitude 42.8702 ± 0.0045
Longitude 13.3530 ± 0.0074
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 4910961

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 627
Semi-minor axis of confidence ellipse (meter) 100
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 68
Circular confidence region, given by single value of horizontal uncertainty (meter) 630.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 57
Number of associated phases, regardless of their use for origin computation 47
Number of defining phases 44
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.92990
Number of stations at which the event was observed 31
Number of stations from which data was used for origin computation 28
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 4910961
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2015-01-15 13:05:46

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 25
Type of magnitude ML
Reference to an origin 4695771
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2013-10-20 01:28:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MRLC.HHZ. 2013-10-20T01:21:40.92 3.0 negative manual Pn 0.96 0
IV.MURB.HHZ. 2013-10-20T01:21:23.74 0.6 undecidable manual S 303 80.0643 50 0.88 35
IV.MOMA.HHZ. 2013-10-20T01:21:19.17 0.6 undecidable manual S 263 64.2912 50 0.51 42
IV.FOSV.EHZ. 2013-10-20T01:21:19.71 0.3 undecidable manual S 315 67.1772 50 0.28 66
IV.ASSB.HHZ. 2013-10-20T01:21:17.67 0.3 undecidable manual S 289 59.496 50 0.29 67
IV.ARRO.EHZ. 2013-10-20T01:21:17.00 0.1 undecidable manual S 236 57.6978 50 0.1 93
IV.SNTG.HHZ. 2013-10-20T01:21:16.30 0.3 undecidable manual S 322 54.2013 50 0.34 67
IV.MGAB.HHZ. 2013-10-20T01:21:16.79 3.0 undecidable manual P 1.12 0
IV.EL6.EHZ. 2013-10-20T01:21:16.65 0.3 undecidable manual S 338 54.8007 50 0.52 64
IV.T0104.HHZ. 2013-10-20T01:21:16.88 0.6 undecidable manual S 181 56.5989 50 0.28 45
IV.FSSB.HHZ. 2013-10-20T01:21:16.15 0.6 undecidable manual P 333 102.4197 50 -0.04 43
IV.NARO.HHZ. 2013-10-20T01:21:15.77 0.6 undecidable manual P 323 103.2189 50 -0.54 39
IV.PIEI.HHZ. 2013-10-20T01:21:15.04 0.6 undecidable manual P 318 99.123 50 -0.64 38
IV.FRON.EHZ. 2013-10-20T01:21:13.50 0.6 undecidable manual P 325 87.9453 50 -0.46 41
IV.MURB.HHZ. 2013-10-20T01:21:12.49 0.6 undecidable manual P 303 80.0643 50 -0.25 43
IV.LNSS.HHZ. 2013-10-20T01:21:12.31 0.1 undecidable manual S 221 39.1275 50 0.38 91
IV.ATFO.HHZ. 2013-10-20T01:21:12.83 0.6 undecidable manual P 311 83.8494 50 -0.5 41
IV.CESI.HHZ. 2013-10-20T01:21:12.11 0.1 undecidable manual S 292 39.3273 50 0.11 96
IV.TERO.HHZ. 2013-10-20T01:21:11.00 0.3 undecidable manual S 143 34.2435 50 0.38 69
IV.PCRO.HNZ. 2013-10-20T01:21:11.38 0.6 undecidable manual P 10 83.0502 50 -1.83 20
IV.CAMP.HHZ. 2013-10-20T01:21:11.44 0.1 undecidable manual S 173 37.3293 50 -0.03 98
IV.MNTP.HNE. 2013-10-20T01:21:11.08 0.6 undecidable manual S 18 31.1466 50 1.29 32
IV.ARVD.HHZ. 2013-10-20T01:21:11.90 0.6 undecidable manual P 335 77.1672 50 -0.4 42
IV.MOMA.HHZ. 2013-10-20T01:21:10.18 0.6 undecidable manual P 263 64.2912 50 -0.13 46
IV.ATCC.EHZ. 2013-10-20T01:21:10.34 0.3 undecidable manual P 301 67.5768 50 -0.47 63
IV.FOSV.EHZ. 2013-10-20T01:21:10.33 0.1 undecidable manual P 315 67.1772 50 -0.43 85
IV.VCEL.EHZ. 2013-10-20T01:21:10.37 3.0 positive manual P -0.62 0
IV.ASSB.HHZ. 2013-10-20T01:21:09.00 0.6 undecidable manual P 289 59.496 50 -0.58 41
IV.FDMO.HHZ. 2013-10-20T01:21:09.04 0.3 undecidable manual S 311 28.3494 50 -0.03 75
IV.SMA1.EHZ. 2013-10-20T01:21:08.80 0.3 undecidable manual S 183 26.6511 50 0.2 73
IV.T0104.HHZ. 2013-10-20T01:21:08.84 0.6 undecidable manual P 181 56.5989 50 -0.29 45
IV.ARRO.EHZ. 2013-10-20T01:21:08.89 0.1 undecidable manual P 236 57.6978 50 -0.41 87
IV.TRTR.HHE. 2013-10-20T01:21:08.13 0.6 undecidable manual P 98 46.1205 50 0.62 42
IV.SNTG.HHZ. 2013-10-20T01:21:08.34 0.3 undecidable manual P 322 54.2013 50 -0.42 66
MN.AQU.HHZ. 2013-10-20T01:21:08.79 0.6 undecidable manual P 176 57.3981 50 -0.46 43
IV.EL6.EHZ. 2013-10-20T01:21:08.46 0.1 undecidable manual P 338 54.8007 50 -0.4 88
IV.NRCA.HNZ. 2013-10-20T01:21:07.32 0.1 undecidable manual S 258 19.869 118 0.61 88
IV.LNSS.HHZ. 2013-10-20T01:21:06.17 0.1 positive manual P 221 39.1275 50 -0.26 93
IV.CESI.HHZ. 2013-10-20T01:21:06.20 0.3 undecidable manual P 292 39.3273 50 -0.27 70
IV.MNTP.HNE. 2013-10-20T01:21:05.40 0.3 undecidable manual P 18 31.1466 50 0.2 72
IV.TERO.HHZ. 2013-10-20T01:21:05.46 0.1 undecidable manual P 143 34.2435 50 -0.22 95
IV.CAMP.HHZ. 2013-10-20T01:21:05.85 0.1 positive manual P 173 37.3293 50 -0.31 93
IV.OFFI.HHZ. 2013-10-20T01:21:05.44 0.1 negative manual P 75 27.9498 50 0.73 83
IV.SMA1.EHZ. 2013-10-20T01:21:04.47 0.1 positive manual P 183 26.6511 50 -0.04 100
IV.FDMO.HHZ. 2013-10-20T01:21:04.55 0.1 undecidable manual P 311 28.3494 50 -0.23 96
IV.GUMA.HHZ. 2013-10-20T01:21:04.11 0.1 negative manual P 356 21.3675 116 0.41 93
IV.NRCA.HNZ. 2013-10-20T01:21:03.56 0.1 positive manual P 258 19.869 118 0.14 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.AQU.HHN. ML:1.7 0.0001105 0.64 AML other m 2013-10-20T01:21:20.29
MN.AQU.HHE. ML:1.8 0.0001305 0.44 AML other m 2013-10-20T01:21:20.60
IV.ARRO.EHN. ML:1.9 0.00016999999999999999 0.72 AML other m 2013-10-20T01:21:20.67
IV.ARRO.EHE. ML:2.1 0.000288 0.7 AML other m 2013-10-20T01:21:18.19
IV.ARVD.HHE. ML:1.5 0.0000468 0.38 AML other m 2013-10-20T01:21:23.93
IV.ARVD.HHN. ML:1.4 0.0000384 0.54 AML other m 2013-10-20T01:21:29.11
IV.ASSB.HHE. ML:1.9 0.000175 1.4 AML other m 2013-10-20T01:21:19.54
IV.ASSB.HHN. ML:1.9 0.0001565 1.14 AML other m 2013-10-20T01:21:18.83
IV.ATCC.EHE. ML:2.0 0.00016399999999999997 0.34 AML other m 2013-10-20T01:21:20.64
IV.ATCC.EHN. ML:1.8 0.00010139999999999998 1.4 AML other m 2013-10-20T01:21:21.78
IV.ATFO.HHN. ML:1.6 0.00005095 0.96 AML other m 2013-10-20T01:21:26.78
IV.ATFO.HHE. ML:1.6 0.0000576 0.18 AML other m 2013-10-20T01:21:26.33
IV.CAMP.HHE. ML:1.8 0.00022999999999999998 0.9 AML other m 2013-10-20T01:21:11.72
IV.CAMP.HHN. ML:1.6 0.0001665 1.08 AML other m 2013-10-20T01:21:12.69
IV.CESI.HHE. ML:1.4 0.00009305 0.54 AML other m 2013-10-20T01:21:12.96
IV.CESI.HHN. ML:1.8 0.0001945 1.36 AML other m 2013-10-20T01:21:12.55
IV.FDMO.HHE. ML:2.0 0.000565 0.16 AML other m 2013-10-20T01:21:09.47
IV.FDMO.HHN. ML:2.2 0.0008240000000000001 0.34 AML other m 2013-10-20T01:21:09.53
IV.FOSV.EHE. ML:1.9 0.000131 0.24 AML other m 2013-10-20T01:21:21.86
IV.FOSV.EHN. ML:2.1 0.00021150000000000002 0.18 AML other m 2013-10-20T01:21:20.07
IV.FRON.EHE. ML:1.6 0.0000481 1.2 AML other m 2013-10-20T01:21:32.01
IV.FRON.EHN. ML:1.7 0.0000661 0.84 AML other m 2013-10-20T01:21:33.88
IV.FSSB.HHE. ML:2.0 0.00009900000000000001 1.34 AML other m 2013-10-20T01:21:35.57
IV.FSSB.HHN. ML:2.2 0.0001655 0.36 AML other m 2013-10-20T01:21:37.10
IV.GUMA.HNE. ML:2.5 0.002 0.32 AML other m 2013-10-20T01:21:08.52
IV.GUMA.HHE. ML:2.7 0.00352 0.28 AML other m 2013-10-20T01:21:08.53
IV.GUMA.HNN. ML:2.6 0.00298 0.22 AML other m 2013-10-20T01:21:08.64
IV.GUMA.HHN. ML:2.5 0.00221 1.54 AML other m 2013-10-20T01:21:08.65
IV.LNSS.HHN. ML:2.4 0.0007915000000000001 0.32 AML other m 2013-10-20T01:21:12.57
IV.LNSS.HHE. ML:2.3 0.0007245 0.28 AML other m 2013-10-20T01:21:13.69
IV.MOMA.HHN. ML:2.0 0.0001945 0.26 AML other m 2013-10-20T01:21:19.83
IV.MOMA.HHE. ML:2.0 0.0001945 1.36 AML other m 2013-10-20T01:21:20.88
IV.MOMA.HNN. ML:2.4 0.000417 1 AML other m 2013-10-20T01:21:29.61
IV.MOMA.HNE. ML:2.1 0.00021949999999999997 1.38 AML other m 2013-10-20T01:21:20.89
IV.MURB.HHE. ML:2.2 0.000244 0.26 AML other m 2013-10-20T01:21:26.36
IV.MURB.HHN. ML:2.3 0.0002475 0.28 AML other m 2013-10-20T01:21:25.06
IV.NARO.HHN. ML:1.5 0.00002985 1.12 AML other m 2013-10-20T01:21:35.35
IV.NARO.HHE. ML:1.6 0.0000369 0.7 AML other m 2013-10-20T01:21:35.91
IV.NRCA.HNE. ML:2.8 0.004574999999999999 0.34 AML other m 2013-10-20T01:21:07.49
IV.NRCA.HHE. ML:2.8 0.004985 0.34 AML other m 2013-10-20T01:21:07.49
IV.NRCA.HNN. ML:2.8 0.00469 0.22 AML other m 2013-10-20T01:21:07.61
IV.NRCA.HHN. ML:2.8 0.0050750000000000005 0.22 AML other m 2013-10-20T01:21:07.50
IV.OFFI.HHE. ML:1.9 0.0003835 0.5 AML other m 2013-10-20T01:21:14.52
IV.OFFI.HHN. ML:1.9 0.0004425 0.9 AML other m 2013-10-20T01:21:14.61
IV.PIEI.HHN. ML:1.6 0.00003805 1.1 AML other m 2013-10-20T01:21:33.60
IV.PIEI.HHE. ML:1.7 0.0000474 0.32 AML other m 2013-10-20T01:21:31.30
IV.SMA1.EHN. ML:2.0 0.000617 0.26 AML other m 2013-10-20T01:21:09.32
IV.SMA1.EHE. ML:2.2 0.000837 0.58 AML other m 2013-10-20T01:21:10.32
IV.SNTG.HHN. ML:1.7 0.000127 0.48 AML other m 2013-10-20T01:21:16.88
IV.SNTG.HHE. ML:1.6 0.00010499999999999999 1.16 AML other m 2013-10-20T01:21:16.79
IV.T0104.HHN. ML:2.0 0.0002105 0.28 AML other m 2013-10-20T01:21:17.83
IV.T0104.HHE. ML:2.1 0.00028599999999999996 0.2 AML other m 2013-10-20T01:21:19.74
IV.VCEL.EHN. ML:2.0 0.000187 1.58 AML other m 2013-10-20T01:21:24.72
IV.VCEL.EHE. ML:1.8 0.0001265 0.3 AML other m 2013-10-20T01:21:22.30
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