Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 05-12-2012 and time 01:12:07 (UTC) in region 2 km NE Appignano del Tronto (AP)

A magnitude ML 2.1 earthquake occured in region: 2 km NE Appignano del Tronto (AP), on

  • 05-12-2012 01:12:07 (UTC)
  • 05-12-2012 02:12:07 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9160, 13.6820 at 28 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
Appignano del Tronto AP 2 1785 1785
Offida AP 3 5058 6843
Castorano AP 4 2380 9223
Castignano AP 6 2796 12019
Castel di Lama AP 6 8634 20653
Colli del Tronto AP 7 3668 24321
Cossignano AP 8 978 25299
Spinetoli AP 8 7215 32514
Monsampolo del Tronto AP 9 4611 37125
Maltignano AP 9 2401 39526
Ancarano TE 10 1857 41383
Montedinove AP 10 488 41871
Montalto delle Marche AP 10 2122 43993
Sant'Egidio alla Vibrata TE 10 9811 53804
Rotella AP 11 906 54710
Ascoli Piceno AP 11 49407 104117
Folignano AP 11 9241 113358
Acquaviva Picena AP 11 3831 117189
Ripatransone AP 12 4309 121498
Monteprandone AP 13 12655 134153
Torano Nuovo TE 13 1611 135764
Carassai AP 13 1100 136864
Controguerra TE 13 2436 139300
Ortezzano FM 14 774 140074
Monte Rinaldo FM 15 379 140453
Nereto TE 15 5242 145695
Monte Vidon Combatte FM 16 433 146128
Corropoli TE 16 5045 151173
Venarotta AP 16 2066 153239
Colonnella TE 16 3734 156973
Civitella del Tronto TE 16 5116 162089
Montefiore dell'Aso AP 16 2123 164212
Force AP 16 1354 165566
Montelparo FM 17 778 166344
San Benedetto del Tronto AP 17 47303 213647
Petritoli FM 17 2335 215982
Sant'Omero TE 17 5243 221225
Grottammare AP 17 16006 237231
Massignano AP 18 1638 238869
Roccafluvione AP 18 2010 240879
Palmiano AP 18 196 241075
Montottone FM 18 979 242054
Cupra Marittima AP 19 5398 247452
Santa Vittoria in Matenano FM 19 1330 248782
Monterubbiano FM 19 2230 251012
Monteleone di Fermo FM 19 395 251407
Martinsicuro TE 19 16033 267440
Moresco FM 20 598 268038
Monsampietro Morico FM 20 659 268697
Montefalcone Appennino FM 20 424 269121

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km N of Teramo (54892 inhabitants)
59 Km NW of Montesilvano (53738 inhabitants)
66 Km NW of Pescara (121014 inhabitants)
67 Km NE of L'Aquila (69753 inhabitants)
74 Km NW of Chieti (51815 inhabitants)
79 Km S of Ancona (100861 inhabitants)
80 Km E of Foligno (57155 inhabitants)
93 Km E of Terni (111501 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 2.1 2012-12-05
01:12:08		 42.9195 13.6743 27 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 2673811
Bulletin
Rev1000 		ML 2.1 2012-12-05
01:12:07		 42.9155 13.6822 28 2014-09-19
08:14:18		 Bollettino Sismico Italiano INGV 3053751
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2012-12-05 01:12:07 ± 0.18
Latitude 42.9155 ± 0.0090
Longitude 13.6822 ± 0.0098
Depth (km) 28 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 3053751

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1079
Semi-minor axis of confidence ellipse (meter) 380
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 208
Circular confidence region, given by single value of horizontal uncertainty (meter) 1080.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 114
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.01979
Epicentral distance of station farthest from the epicenter (degree) 0.83727
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 7
Type of magnitude ML
Reference to an origin 2673811
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2012-12-05 01:18:01

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 7
Type of magnitude ML
Reference to an origin 3053751
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2014-09-18 12:45:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SNTG.HHZ. 2012-12-05T01:12:30.49 0.1 undecidable manual S 302 70.8735 106 0.55 79
IV.CESI.HHZ. 2012-12-05T01:12:29.10 0.1 undecidable manual S 279 63.8916 108 0.95 69
IV.FDMO.HHZ. 2012-12-05T01:12:24.56 0.1 undecidable manual S 286 50.1165 113 -0.14 92
IV.SSFR.HHZ. 2012-12-05T01:12:24.15 0.3 undecidable manual P 309 92.9403 102 0.22 62
IV.FOSV.EHZ. 2012-12-05T01:12:23.07 0.3 undecidable manual P 300 85.6476 103 0.23 63
IV.NRCA.HHZ. 2012-12-05T01:12:23.76 0.1 undecidable manual S 259 47.0196 115 -0.19 90
IV.ATCC.EHZ. 2012-12-05T01:12:23.64 0.3 undecidable manual P 290 89.6436 102 0.2 63
IV.CSP1.EHZ. 2012-12-05T01:12:22.83 0.1 undecidable manual S 297 43.4232 117 -0.24 91
IV.ARRO.EHZ. 2012-12-05T01:12:22.82 0.3 undecidable manual P 244 83.4498 103 0.31 63
IV.TERO.HHZ. 2012-12-05T01:12:20.50 0.6 undecidable manual S 191 33.1446 125 -0.21 46
IV.GUMA.HHZ. 2012-12-05T01:12:20.52 0.1 undecidable manual S 300 32.5452 125 -0.07 96
IV.SNTG.HHZ. 2012-12-05T01:12:20.41 0.1 undecidable manual P 302 70.8735 106 -0.23 87
IV.CING.HHZ. 2012-12-05T01:12:19.52 0.3 undecidable manual P 323 64.491 108 -0.17 67
IV.CESI.HHZ. 2012-12-05T01:12:19.51 0.1 undecidable manual P 279 63.8916 108 -0.09 90
IV.LNSS.HHZ. 2012-12-05T01:12:19.42 0.1 undecidable manual P 237 62.6928 108 -0.01 91
IV.EL6.EHZ. 2012-12-05T01:12:19.85 0.1 undecidable manual P 315 65.6898 107 -0.02 91
IV.FDMO.HHZ. 2012-12-05T01:12:17.27 0.1 undecidable manual P 286 50.1165 113 -0.34 88
IV.NRCA.HHZ. 2012-12-05T01:12:16.89 0.1 undecidable manual P 259 47.0196 115 -0.29 89
IV.OFFI.HHZ. 2012-12-05T01:12:16.17 0.6 undecidable manual S 8 2.1978 175 -0.09 50
IV.CSP1.EHZ. 2012-12-05T01:12:16.42 0.1 undecidable manual P 297 43.4232 117 -0.25 91
IV.TERO.HHZ. 2012-12-05T01:12:15.24 0.1 undecidable manual P 191 33.1446 125 -0.07 94
IV.GUMA.HHZ. 2012-12-05T01:12:15.11 0.1 undecidable manual P 300 32.5452 125 -0.13 95
IV.TRTR.HHZ. 2012-12-05T01:12:14.81 0.3 undecidable manual P 122 22.2555 137 0.76 61
IV.OFFI.HHZ. 2012-12-05T01:12:12.63 0.1 negative manual P 8 2.1978 175 -0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATCC.EHN. ML:2.2 0.00016135 1.58 AML other m 2012-12-05T01:12:47.30
IV.ATCC.EHE. ML:2.0 0.0001137 1.28 AML other m 2012-12-05T01:12:48.96
IV.FDMO.HHN. ML:2.0 0.00021050000000000002 0.24 AML other m 2012-12-05T01:12:24.84
IV.FDMO.HHE. ML:1.9 0.0001655 1.5 AML other m 2012-12-05T01:12:25.45
IV.GUMA.HHE. ML:2.4 0.000919 0.4 AML other m 2012-12-05T01:12:20.62
IV.GUMA.HHN. ML:2.5 0.001142 0.46 AML other m 2012-12-05T01:12:20.69
IV.LNSS.HHE. ML:1.9 0.00014250000000000002 1.26 AML other m 2012-12-05T01:12:31.43
IV.LNSS.HHN. ML:2.0 0.000153 1.2 AML other m 2012-12-05T01:12:34.66
IV.NRCA.HHN. ML:2.2 0.00033999999999999997 0.38 AML other m 2012-12-05T01:12:25.14
IV.NRCA.HHE. ML:2.1 0.00027800000000000004 0.12 AML other m 2012-12-05T01:12:26.12
IV.OFFI.HHE. ML:2.9 0.00411 0.64 AML other m 2012-12-05T01:12:16.99
IV.OFFI.HHN. ML:2.8 0.00361 0.34 AML other m 2012-12-05T01:12:16.86
IV.TERO.HHE. ML:1.7 0.0001735 0.56 AML other m 2012-12-05T01:12:20.90
IV.TERO.HHN. ML:1.6 0.00014500000000000003 0.1 AML other m 2012-12-05T01:12:20.75
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