Earthquake with magnitude of ML 2.1 on date 23-04-2009 and time 16:05:59 (Italy) in region 3 km E Anversa degli Abruzzi (AQ)

A magnitude ML 2.1 earthquake occured in region: 3 km E Anversa degli Abruzzi (AQ), on

  • 23-04-2009 14:05:59 (UTC)
  • 23-04-2009 16:05:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.9890, 13.8340 at 20 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
Anversa degli Abruzzi AQ 3 341 341
Bugnara AQ 4 1125 1466
Villalago AQ 6 568 2034
Introdacqua AQ 6 2126 4160
Cocullo AQ 7 230 4390
Prezza AQ 8 945 5335
Ortona dei Marsi AQ 9 542 5877
Bisegna AQ 10 223 6100
Sulmona AQ 10 24557 30657
Scanno AQ 10 1847 32504
Pettorano sul Gizio AQ 11 1376 33880
Goriano Sicoli AQ 11 569 34449
Gioia dei Marsi AQ 12 1989 36438
Pratola Peligna AQ 13 7577 44015
Raiano AQ 13 2815 46830
Rocca Pia AQ 13 178 47008
Lecce nei Marsi AQ 14 1702 48710
Cansano AQ 15 274 48984
Pescina AQ 15 4133 53117
Pacentro AQ 15 1174 54291
Corfinio AQ 15 1051 55342
Vittorito AQ 15 873 56215
Roccacasale AQ 16 693 56908
Ortucchio AQ 16 1860 58768
Castel di Ieri AQ 16 303 59071
San Benedetto dei Marsi AQ 18 3909 62980
Campo di Giove AQ 18 803 63783
Castelvecchio Subequo AQ 18 982 64765
Collarmele AQ 19 894 65659
Gagliano Aterno AQ 19 254 65913
Molina Aterno AQ 20 386 66299

Municipalities with at least 50000 inhabitants

An earthquake occurred to
49 Km SW of Chieti (51815 inhabitants)
54 Km SE of L'Aquila (69753 inhabitants)
62 Km SW of Pescara (121014 inhabitants)
64 Km SW of Montesilvano (53738 inhabitants)
75 Km S of Teramo (54892 inhabitants)
86 Km E of Tivoli (56533 inhabitants)
92 Km E of Guidonia Montecelio (88673 inhabitants)
94 Km E of Velletri (53303 inhabitants)
96 Km NE of Latina (125985 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 2.0
ML 2.1
2009-04-23
14:05:59
41.989 13.834 20 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 830519
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-23 14:05:59 ± 0.13
Latitude 41.9890 ± 0.0063
Longitude 13.8340 ± 0.0073
Depth (km) 20 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 830519

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 758
Semi-minor axis of confidence ellipse (meter) 179
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 334
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) 82
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.65561
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 830519
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 15:44:48

Md:2.0

Field Value
Value 2.0
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 830519
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 15:44:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GIUL.HHN. 2009-04-23T14:06:21.13 0.6 undecidable manual Sg 225 67.6767 0.502 41
IV.MIDA.HHZ. 2009-04-23T14:06:17.30 0.6 undecidable manual Sg 138 51.8037 0.817 36
IV.CERA.HHN. 2009-04-23T14:06:15.14 0.6 undecidable manual Sg 161 46.0206 0.184 45
IV.RNI2.HHE. 2009-04-23T14:06:15.38 10.0 undecidable manual Pg 0 0 0
IV.GUAR.HHZ. 2009-04-23T14:06:15.30 0.3 undecidable manual Sg 244 48.1185 -0.215 68
IV.TERO.HHE. 2009-04-23T14:06:12.30 0.3 undecidable manual Pg 345 72.7716 -0.374 62
IV.FAGN.HHE. 2009-04-23T14:06:12.86 0.3 undecidable manual Sg 326 36.9297 0.212 72
IV.GIUL.HHN. 2009-04-23T14:06:11.65 0.3 undecidable manual Pg 225 67.6767 -0.236 66
IV.LPEL.HHE. 2009-04-23T14:06:10.76 0.6 undecidable manual Sg 77 29.5482 -0.037 49
IV.SDI.SHZ. 2009-04-23T14:06:10.87 0.3 undecidable manual Sg 183 30.9468 -0.283 71
IV.MIDA.HHZ. 2009-04-23T14:06:09.07 0.3 undecidable manual Pg 138 51.8037 -0.422 66
IV.GUAR.HHZ. 2009-04-23T14:06:09.86 0.3 undecidable manual Pg 244 48.1185 0.926 55
IV.VVLD.HHZ. 2009-04-23T14:06:08.91 0.1 undecidable manual Sg 233 21.7671 -0.086 98
IV.CERA.HHN. 2009-04-23T14:06:08.39 0.3 undecidable manual Pg 161 46.0206 -0.22 70
IV.FAGN.HHE. 2009-04-23T14:06:07.46 0.6 undecidable manual Pg 326 36.9297 0.184 48
IV.PTQR.SHZ. 2009-04-23T14:06:07.24 0.3 undecidable manual Pg 276 35.8419 0.119 72
IV.LPEL.HHE. 2009-04-23T14:06:06.09 0.1 undecidable manual Pg 77 29.5482 -0.12 97
IV.INTR.HHZ. 2009-04-23T14:06:06.54 0.3 undecidable manual Sg 67 6.3936 0.169 75
IV.SDI.SHZ. 2009-04-23T14:06:06.21 0.1 undecidable manual Pg 183 30.9468 -0.204 95
IV.VVLD.HHZ. 2009-04-23T14:06:05.13 0.1 undecidable manual Pg 233 21.7671 -0.04 99
IV.INTR.HHZ. 2009-04-23T14:06:03.82 0.1 undecidable manual Pg 67 6.3936 0.172 100
IV.QLNO.HHE. 2009-04-23T14:05:49.63 10.0 undecidable manual Pg 0 0 0
IV.STR3.BHE. 2009-04-23T14:05:38.09 10.0 undecidable manual Pg 0 0 0
IV.SIRI.HHZ. 2009-04-23T14:05:24.12 10.0 undecidable manual Pg 0 0 0
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
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