Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 29-10-2011 and time 09:44:24 (UTC) in region 6 km E Villavallelonga (AQ)

A magnitude ML 2.2 earthquake occured in region: 6 km E Villavallelonga (AQ), on

  • 29-10-2011 09:44:24 (UTC)
  • 29-10-2011 11:44:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.8540, 13.6980 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
Villavallelonga AQ 6 919 919
Lecce nei Marsi AQ 9 1702 2621
Bisegna AQ 9 223 2844
Pescasseroli AQ 9 2203 5047
Collelongo AQ 10 1233 6280
Gioia dei Marsi AQ 11 1989 8269
Pescosolido FR 12 1555 9824
Ortucchio AQ 12 1860 11684
Balsorano AQ 12 3569 15253
Campoli Appennino FR 13 1725 16978
Opi AQ 14 420 17398
San Vincenzo Valle Roveto AQ 15 2347 19745
Villalago AQ 15 568 20313
Scanno AQ 16 1847 22160
Sora FR 16 26144 48304
Ortona dei Marsi AQ 16 542 48846
Broccostella FR 17 2741 51587
Trasacco AQ 18 6246 57833
Posta Fibreno FR 18 1139 58972
Anversa degli Abruzzi AQ 18 341 59313
San Benedetto dei Marsi AQ 18 3909 63222
Alvito FR 19 2713 65935
San Donato Val di Comino FR 19 2107 68042
Civita d'Antino AQ 19 979 69021
Pescina AQ 20 4133 73154
Vicalvi FR 20 783 73937
Morino AQ 20 1448 75385

Municipalities with at least 50000 inhabitants

An earthquake occurred to
61 Km SE of L'Aquila (69753 inhabitants)
68 Km SW of Chieti (51815 inhabitants)
75 Km E of Tivoli (56533 inhabitants)
79 Km E of Velletri (53303 inhabitants)
79 Km NE of Latina (125985 inhabitants)
80 Km SW of Pescara (121014 inhabitants)
82 Km E of Guidonia Montecelio (88673 inhabitants)
82 Km SW of Montesilvano (53738 inhabitants)
90 Km S of Teramo (54892 inhabitants)
92 Km E of Aprilia (73446 inhabitants)
100 Km E of Anzio (54211 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 		Md 2.5
ML 2.2 		2011-10-29
09:44:24		 41.854 13.698 11 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 1302089
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-10-29 09:44:24 ± 0.08
Latitude 41.8540 ± 0.0054
Longitude 13.6980 ± 0.0072
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1302089

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 658
Semi-minor axis of confidence ellipse (meter) 207
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 48
Circular confidence region, given by single value of horizontal uncertainty (meter) 848.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 52
Number of associated phases, regardless of their use for origin computation 45
Number of defining phases 30
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.56
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.89213
Number of stations at which the event was observed 36
Number of stations from which data was used for origin computation 21
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 1302089
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 01:49:27

Md:2.5

Field Value
Value 2.5
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 1302089
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 01:49:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MURB.HHN. 2011-10-29T09:45:02.02 10.0 undecidable manual Pg 0 0 0
IV.SSFR.HHE. 2011-10-29T09:45:00.07 10.0 undecidable manual Pg 0 0 0
IV.OFFI.HHN. 2011-10-29T09:44:58.66 10.0 undecidable manual Pg 0 0 0
IV.ATCC.EHZ. 2011-10-29T09:44:56.31 10.0 undecidable manual Pg 0 0 0
IV.FDMO.HHZ. 2011-10-29T09:44:51.70 10.0 undecidable manual Pg 0 0 0
IV.ORI.HHZ. 2011-10-29T09:44:50.65 10.0 undecidable manual Pg 0 0 0
IV.TOLF.HHZ. 2011-10-29T09:44:50.72 10.0 undecidable manual Pg 0 0 0
IV.NRCA.HHZ. 2011-10-29T09:44:47.22 10.0 undecidable manual Pg 0 0 0
NI.AGOR.HHZ. 2011-10-29T09:44:45.97 10.0 undecidable manual Pg 0 0 0
IV.MCIV.HHN. 2011-10-29T09:44:43.72 10.0 undecidable manual Pg 0 0 0
IV.VCEL.EHZ. 2011-10-29T09:44:43.95 0.3 undecidable manual Sg 11 60.9945 0.987 53
IV.CERT.HHZ. 2011-10-29T09:44:42.67 0.3 undecidable manual Sg 280 60.0954 -0.036 68
IV.LNSS.HHZ. 2011-10-29T09:44:42.37 0.3 undecidable manual Pg 327 99.0231 1.474 37
IV.SMA1.EHZ. 2011-10-29T09:44:41.91 10.0 undecidable manual Pg 0 0 0
IV.MSC.EHZ. 2011-10-29T09:44:40.50 10.0 undecidable manual Pg 0 0 0
IV.GIUL.HHZ. 2011-10-29T09:44:40.09 0.3 undecidable manual Sg 228 49.3173 0.262 65
IV.MIDA.HHZ. 2011-10-29T09:44:40.87 0.3 undecidable manual Sg 117 51.7038 0.409 64
IV.MODR.HHN. 2011-10-29T09:44:39.60 0.6 undecidable manual Pg 169 79.9644 1.642 22
IV.PTRJ.HHE. 2011-10-29T09:44:38.78 0.6 undecidable manual Pg 128 87.7455 -0.376 40
IV.TERO.HHZ. 2011-10-29T09:44:38.42 0.3 undecidable manual Pg 355 85.5477 -0.397 59
IV.BSSO.HHE. 2011-10-29T09:44:38.27 0.1 undecidable manual Pg 114 81.6516 0.053 87
IV.T0104.HHZ. 2011-10-29T09:44:37.68 10.0 undecidable manual Pg 0 0 0
IV.MTCE.HHZ. 2011-10-29T09:44:37.34 0.3 undecidable manual Pg 284 81.0522 -0.786 52
IV.CAFR.HHN. 2011-10-29T09:44:36.11 0.3 undecidable manual Pg 52 67.5768 0.066 67
IV.CERA.HHE. 2011-10-29T09:44:36.90 0.3 undecidable manual Sg 137 38.9277 -0.149 69
IV.TRIV.HHE. 2011-10-29T09:44:36.55 0.1 undecidable manual Pg 98 71.0733 -0.036 88
IV.VAGA.HHZ. 2011-10-29T09:44:35.53 0.1 undecidable manual Pg 137 65.8896 -0.258 85
IV.PTQR.HHZ. 2011-10-29T09:44:35.06 0.3 undecidable manual Sg 307 30.8469 0.167 70
IV.FIAM.HHZ. 2011-10-29T09:44:35.61 0.1 undecidable manual Pg 314 66.2781 -0.238 85
IV.CERT.HHZ. 2011-10-29T09:44:34.37 0.1 undecidable manual Pg 280 60.0954 -0.52 81
IV.VCEL.EHZ. 2011-10-29T09:44:34.97 0.1 undecidable manual Pg 11 60.9945 -0.068 88
IV.FAGN.HHN. 2011-10-29T09:44:33.09 0.1 undecidable manual Pg 348 46.62 0.28 89
IV.MIDA.HHZ. 2011-10-29T09:44:33.22 0.1 undecidable manual Pg 117 51.7038 -0.375 85
IV.SGG.HHN. 2011-10-29T09:44:33.18 10.0 undecidable manual Pg 0 0 0
IV.GIUL.HHZ. 2011-10-29T09:44:33.02 0.1 undecidable manual Pg 228 49.3173 -0.208 90
IV.INTR.HHZ. 2011-10-29T09:44:32.91 0.3 undecidable manual Sg 44 24.3534 -0.259 67
IV.RNI2.HHZ. 2011-10-29T09:44:32.10 0.1 undecidable manual Pg 114 41.1255 0.133 92
IV.POFI.HHN. 2011-10-29T09:44:31.03 0.3 undecidable manual Sg 176 15.2736 0.29 69
IV.CERA.HHE. 2011-10-29T09:44:31.31 0.1 undecidable manual Pg 137 38.9277 -0.314 89
IV.PTQR.HHZ. 2011-10-29T09:44:30.28 0.1 undecidable manual Pg 307 30.8469 -0.096 93
IV.INTR.HHZ. 2011-10-29T09:44:29.26 0.1 undecidable manual Pg 44 24.3534 -0.121 93
IV.VVLD.HHN. 2011-10-29T09:44:28.73 0.1 undecidable manual Sg 285 6.3936 0.018 100
IV.POFI.HHN. 2011-10-29T09:44:27.93 0.1 undecidable manual Pg 176 15.2736 -0.052 98
IV.VVLD.HHN. 2011-10-29T09:44:27.00 0.1 undecidable manual Pg 285 6.3936 0.19 97
IV.ESLN.HHZ. 2011-10-29T09:44:07.59 10.0 undecidable manual Pg 0 0 0
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