Earthquake with magnitude of ML 2.0 on date 31-12-2005 and time 17:22:31 (Italy) in region 5 km N L'Aquila (AQ)

A magnitude ML 2.0 earthquake occured in region: 5 km N L'Aquila (AQ), on

  • 31-12-2005 16:22:31 (UTC)
  • 31-12-2005 17:22:31 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.3920, 13.3850 at 12 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
L'Aquila AQ 5 69753 69753
Pizzoli AQ 9 4326 74079
Scoppito AQ 11 3727 77806
Barete AQ 11 737 78543
Lucoli AQ 12 1011 79554
Tornimparte AQ 13 3187 82741
Fossa AQ 14 721 83462
Ocre AQ 14 1167 84629
Cagnano Amiterno AQ 15 1369 85998
Poggio Picenze AQ 15 1136 87134
Capitignano AQ 16 665 87799
Sant'Eusanio Forconese AQ 16 394 88193
Barisciano AQ 18 1828 90021
Villa Sant'Angelo AQ 18 424 90445
San Demetrio ne' Vestini AQ 18 1854 92299
Campotosto AQ 19 542 92841
Montereale AQ 19 2581 95422
Crognaleto TE 19 1297 96719
Rocca di Cambio AQ 19 533 97252

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km N of L'Aquila (69753 inhabitants)
40 Km SW of Teramo (54892 inhabitants)
63 Km E of Terni (111501 inhabitants)
64 Km W of Montesilvano (53738 inhabitants)
65 Km W of Chieti (51815 inhabitants)
68 Km NE of Tivoli (56533 inhabitants)
69 Km W of Pescara (121014 inhabitants)
70 Km NE of Guidonia Montecelio (88673 inhabitants)
84 Km SE of Foligno (57155 inhabitants)
93 Km NE of Roma (2864731 inhabitants)
93 Km NE of Velletri (53303 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 2.3
ML 2.0
2005-12-31
16:22:31
42.392 13.385 12 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 546779
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2005-12-31 16:22:31 ± 0.1
Latitude 42.3920 ± 0.0054
Longitude 13.3850 ± 0.0085
Depth (km) 12 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 546779

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 714
Semi-minor axis of confidence ellipse (meter) 246
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 304
Circular confidence region, given by single value of horizontal uncertainty (meter) 922.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 60
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.92180
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.4
Num. used stations
Type of magnitude ML
Reference to an origin 546779
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 10:32:31

Md:2.3

Field Value
Value 2.3
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 546779
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 10:32:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SNTG.SHZ. 2005-12-31T16:23:03.05 0.1 undecidable manual Sg 339 102.3198 -0.444 39
IV.INTR.HHZ. 2005-12-31T16:22:51.35 0.6 undecidable manual Sg 135 60.0954 0.399 21
IV.MNS.BHZ. 2005-12-31T16:22:50.87 0.1 undecidable manual Sg 269 57.6978 0.632 41
IV.SNTG.SHZ. 2005-12-31T16:22:49.05 0.1 undecidable manual Pg 339 102.3198 -0.251 81
IV.NRCA.SHZ. 2005-12-31T16:22:49.01 0.1 undecidable manual Sg 336 53.7018 -0.045 46
IV.LNSS.BHZ. 2005-12-31T16:22:44.38 0.1 undecidable manual Sg 310 36.6411 0.397 45
IV.PTQR.SHZ. 2005-12-31T16:22:44.46 0.1 undecidable manual Sg 178 41.1255 -0.863 37
IV.VCEL.EHZ. 2005-12-31T16:22:44.88 0.1 undecidable manual Sg 89 37.3293 0.678 40
IV.MNS.BHZ. 2005-12-31T16:22:42.57 0.1 undecidable manual Pg 269 57.6978 0.716 79
IV.VVLD.EHE. 2005-12-31T16:22:42.87 0.1 undecidable manual Pg 161 61.1943 0.425 85
IV.INTR.HHZ. 2005-12-31T16:22:41.72 0.1 undecidable manual Pg 135 60.0954 -0.537 83
IV.TERO.HHZ. 2005-12-31T16:22:41.60 0.1 undecidable manual Sg 35 31.2465 -0.783 40
MN.CUC.HHE. 2005-12-31T16:22:40.15 10.0 undecidable manual Pg 0 0 0
IV.FIAM.HHZ. 2005-12-31T16:22:40.40 0.1 undecidable manual Sg 238 25.9518 -0.427 44
IV.NRCA.SHZ. 2005-12-31T16:22:40.80 0.1 undecidable manual Pg 336 53.7018 -0.39 86
IV.FAGN.EHN. 2005-12-31T16:22:39.74 0.1 undecidable manual Sg 131 21.5673 0.206 47
IV.VCEL.EHZ. 2005-12-31T16:22:39.20 0.1 undecidable manual Pg 89 37.3293 0.737 78
IV.LNSS.BHZ. 2005-12-31T16:22:38.61 0.1 undecidable manual Pg 310 36.6411 0.27 92
IV.PTQR.SHZ. 2005-12-31T16:22:38.72 0.1 undecidable manual Pg 178 41.1255 -0.374 88
IV.CAMP.EHZ. 2005-12-31T16:22:37.95 0.1 undecidable manual Sg 7 16.0728 -0.008 50
IV.TERO.HHZ. 2005-12-31T16:22:37.16 0.1 undecidable manual Pg 35 31.2465 -0.282 92
IV.FIAM.HHZ. 2005-12-31T16:22:36.42 0.1 undecidable manual Pg 238 25.9518 -0.144 95
IV.CAMP.EHZ. 2005-12-31T16:22:35.16 0.1 positive manual Pg 7 16.0728 0.205 96
IV.FAGN.EHN. 2005-12-31T16:22:35.81 0.1 undecidable manual Pg 131 21.5673 -0.031 99
MN.AQU.HHZ. 2005-12-31T16:22:35.00 0.1 undecidable manual Sg 162 4.4955 -0.407 47
MN.AQU.HHZ. 2005-12-31T16:22:33.61 0.1 undecidable manual Pg 162 4.4955 0.087 100
IV.NOVE.EHZ. 2005-12-31T16:22:22.00 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