Earthquake with magnitude of ML 2.1 on date 27-04-2007 and time 06:45:21 (Italy) in region 2 km W Appignano del Tronto (AP)

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

  • 27-04-2007 04:45:21 (UTC)
  • 27-04-2007 06:45:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9010, 13.6480 at 26 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
Appignano del Tronto AP 2 1785 1785
Castignano AP 5 2796 4581
Offida AP 5 5058 9639
Castel di Lama AP 6 8634 18273
Castorano AP 7 2380 20653
Ascoli Piceno AP 8 49407 70060
Maltignano AP 8 2401 72461
Colli del Tronto AP 9 3668 76129
Folignano AP 9 9241 85370
Rotella AP 9 906 86276
Montedinove AP 9 488 86764
Cossignano AP 10 978 87742
Sant'Egidio alla Vibrata TE 10 9811 97553
Montalto delle Marche AP 10 2122 99675
Spinetoli AP 10 7215 106890
Ancarano TE 10 1857 108747
Monsampolo del Tronto AP 12 4611 113358
Venarotta AP 13 2066 115424
Torano Nuovo TE 14 1611 117035
Civitella del Tronto TE 14 5116 122151
Force AP 15 1354 123505
Acquaviva Picena AP 15 3831 127336
Ripatransone AP 15 4309 131645
Roccafluvione AP 15 2010 133655
Ortezzano FM 15 774 134429
Controguerra TE 15 2436 136865
Carassai AP 15 1100 137965
Monte Rinaldo FM 15 379 138344
Palmiano AP 15 196 138540
Monteprandone AP 16 12655 151195
Montelparo FM 16 778 151973
Nereto TE 17 5242 157215
Monte Vidon Combatte FM 17 433 157648
Corropoli TE 17 5045 162693
Sant'Omero TE 18 5243 167936
Santa Vittoria in Matenano FM 18 1330 169266
Montefalcone Appennino FM 18 424 169690
Colonnella TE 18 3734 173424
Petritoli FM 19 2335 175759
Montottone FM 19 979 176738
Montefiore dell'Aso AP 19 2123 178861
Monteleone di Fermo FM 19 395 179256
Campli TE 20 7209 186465
San Benedetto del Tronto AP 20 47303 233768
Monsampietro Morico FM 20 659 234427

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km N of Teramo (54892 inhabitants)
59 Km NW of Montesilvano (53738 inhabitants)
64 Km NE of L'Aquila (69753 inhabitants)
67 Km NW of Pescara (121014 inhabitants)
74 Km NW of Chieti (51815 inhabitants)
77 Km E of Foligno (57155 inhabitants)
80 Km S of Ancona (100861 inhabitants)
90 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
Bulletin
Rev1000
Md 2.5
ML 2.1
2007-04-27
04:45:21
42.901 13.648 26 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 626729
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2007-04-27 04:45:21 ± 0.19
Latitude 42.9010 ± 0.0072
Longitude 13.6480 ± 0.0147
Depth (km) 26 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 626729

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1087
Semi-minor axis of confidence ellipse (meter) 883
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 116
Circular confidence region, given by single value of horizontal uncertainty (meter) 1442.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 75
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.41
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.02882
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.4
Num. used stations
Type of magnitude ML
Reference to an origin 626729
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 11:56:15

Md:2.5

Field Value
Value 2.5
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 626729
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 11:56:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MURB.HHN. 2007-04-27T04:45:55.45 10.0 undecidable manual Sg 0 0 0
IV.ILLI.BHZ. 2007-04-27T04:45:45.34 10.0 undecidable manual Pg 0 0 0
IV.GAVE.SHZ. 2007-04-27T04:45:44.31 10.0 undecidable manual Pg 0 0 0
IV.SNTG.SHZ. 2007-04-27T04:45:43.69 0.3 undecidable manual Sg 305 69.4749 0.883 53
IV.VVLD.BHE. 2007-04-27T04:45:43.25 10.0 undecidable manual Pg 0 0 0
IV.MURB.HHN. 2007-04-27T04:45:41.11 10.0 undecidable manual Pg 0 0 0
IV.CING.HHZ. 2007-04-27T04:45:41.67 0.1 undecidable manual Sg 325 64.0914 0.24 87
IV.PIEI.BHE. 2007-04-27T04:45:40.25 0.1 undecidable manual Pg 308 114.1968 -0.248 79
IV.LNSS.BHZ. 2007-04-27T04:45:40.80 0.1 undecidable manual Sg 236 59.496 0.538 84
IV.ASS.SHZ. 2007-04-27T04:45:40.02 10.0 undecidable manual Pg 0 0 0
IV.FSSB.BHE. 2007-04-27T04:45:40.74 0.3 undecidable manual Pg 322 112.4985 0.503 56
IV.MNS.BHZ. 2007-04-27T04:45:38.04 0.1 undecidable manual Pg 234 97.4247 0.091 85
IV.AOI.BHZ. 2007-04-27T04:45:34.01 0.1 undecidable manual Pg 357 72.0723 -0.109 89
IV.SNTG.SHZ. 2007-04-27T04:45:33.45 0.3 undecidable manual Pg 305 69.4749 -0.275 64
IV.FAGN.BHZ. 2007-04-27T04:45:33.85 0.3 undecidable manual Pg 184 70.6737 -0.065 67
IV.CESI.BHN. 2007-04-27T04:45:32.28 0.1 negative manual Pg 281 61.3941 -0.253 87
IV.CING.HHZ. 2007-04-27T04:45:32.57 0.1 undecidable manual Pg 325 64.0914 -0.359 85
IV.VCEL.EHZ. 2007-04-27T04:45:32.37 0.3 undecidable manual Pg 164 58.3971 0.281 65
IV.LNSS.BHZ. 2007-04-27T04:45:32.15 0.1 positive manual Pg 236 59.496 -0.105 89
IV.NRCA.SHZ. 2007-04-27T04:45:29.72 0.1 negative manual Pg 260 44.0226 -0.292 88
IV.OFFI.HHZ. 2007-04-27T04:45:29.11 0.1 undecidable manual Sg 40 4.8951 -0.11 100
IV.TERO.HHZ. 2007-04-27T04:45:27.97 0.1 positive manual Pg 187 31.1466 -0.297 91
IV.TRTR.HHE. 2007-04-27T04:45:27.94 0.1 undecidable manual Pg 115 23.9538 0.537 85
IV.OFFI.HHZ. 2007-04-27T04:45:25.60 0.1 positive manual Pg 40 4.8951 -0.28 97
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