Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 28-04-2009 and time 23:58:53 (Italy) in region 1 km E Rocca di Cambio (AQ)

A magnitude ML 2.0 earthquake occured in region: 1 km E Rocca di Cambio (AQ), on

  • 28-04-2009 21:58:53 (UTC)
  • 28-04-2009 23:58:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.2380, 13.5010 at 10 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
Rocca di Cambio AQ 1 533 533
Rocca di Mezzo AQ 4 1526 2059
Villa Sant'Angelo AQ 5 424 2483
Ocre AQ 6 1167 3650
Sant'Eusanio Forconese AQ 6 394 4044
Fossa AQ 6 721 4765
Fagnano Alto AQ 6 418 5183
San Demetrio ne' Vestini AQ 8 1854 7037
Fontecchio AQ 9 369 7406
Poggio Picenze AQ 10 1136 8542
Prata d'Ansidonia AQ 10 496 9038
Ovindoli AQ 12 1227 10265
Tione degli Abruzzi AQ 12 310 10575
Barisciano AQ 13 1828 12403
San Pio delle Camere AQ 14 661 13064
Caporciano AQ 14 230 13294
Lucoli AQ 15 1011 14305
L'Aquila AQ 15 69753 84058
Carapelle Calvisio AQ 17 87 84145
Massa d'Albe AQ 17 1476 85621
Santo Stefano di Sessanio AQ 17 111 85732
Celano AQ 17 11017 96749
Secinaro AQ 18 359 97108
Castelvecchio Calvisio AQ 18 153 97261
Tornimparte AQ 18 3187 100448
Calascio AQ 19 137 100585
Aielli AQ 19 1475 102060
Navelli AQ 19 554 102614
Acciano AQ 19 327 102941
Magliano de' Marsi AQ 20 3690 106631

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km SE of L'Aquila (69753 inhabitants)
50 Km SW of Teramo (54892 inhabitants)
56 Km W of Chieti (51815 inhabitants)
62 Km SW of Montesilvano (53738 inhabitants)
64 Km W of Pescara (121014 inhabitants)
65 Km E of Tivoli (56533 inhabitants)
69 Km E of Guidonia Montecelio (88673 inhabitants)
79 Km E of Terni (111501 inhabitants)
86 Km NE of Velletri (53303 inhabitants)
92 Km E of Roma (2864731 inhabitants)
99 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 		ML 2.0 2009-04-28
21:58:53		 42.238 13.501 10 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 840449
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-28 21:58:53 ± 0.06
Latitude 42.2380 ± 0.0027
Longitude 13.5010 ± 0.0049
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 840449

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 423
Semi-minor axis of confidence ellipse (meter) 161
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 250
Circular confidence region, given by single value of horizontal uncertainty (meter) 500.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 47
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 27
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.65920
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 16
Magnitude information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 840449
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 15:56:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CESI.HHN. 2009-04-28T21:59:27.02 10.0 undecidable manual Sg 0 0 0
IV.GUMA.HHN. 2009-04-28T21:59:23.96 10.0 undecidable manual Sg 0 0 0
IV.GUMA.HHN. 2009-04-28T21:59:18.21 10.0 undecidable manual Pg 0 0 0
IV.SNTG.SHZ. 2009-04-28T21:59:16.44 10.0 undecidable manual Pg 0 0 0
IV.LPEL.HHE. 2009-04-28T21:59:13.07 0.6 undecidable manual Sg 110 59.9955 0.443 42
IV.SDI.SHZ. 2009-04-28T21:59:13.95 0.6 undecidable manual Sg 156 63.8916 0.282 43
IV.CESI.HHN. 2009-04-28T21:59:12.72 10.0 undecidable manual Pg 0 0 0
IV.CESX.HHE. 2009-04-28T21:59:10.83 10.0 undecidable manual Pg 0 0 0
IV.TERO.HHN. 2009-04-28T21:59:07.93 0.6 undecidable manual Sg 11 43.5231 -0.284 45
IV.VVLD.HHZ. 2009-04-28T21:59:07.64 0.6 undecidable manual Sg 166 42.1245 -0.204 46
IV.INTR.HHZ. 2009-04-28T21:59:07.62 0.6 undecidable manual Sg 127 41.7249 -0.113 47
IV.NRCA.SHZ. 2009-04-28T21:59:06.90 0.3 undecidable manual Pg 335 73.1712 0.153 66
IV.MNS.HHE. 2009-04-28T21:59:06.26 0.6 undecidable manual Pg 284 69.1752 0.132 44
IV.SDI.SHZ. 2009-04-28T21:59:05.40 0.3 undecidable manual Pg 156 63.8916 0.081 68
IV.VCEL.EHZ. 2009-04-28T21:59:05.21 0.6 undecidable manual Sg 58 32.8449 -0.16 47
IV.CAMP.HHZ. 2009-04-28T21:59:05.24 0.6 undecidable manual Sg 347 33.8439 -0.398 45
IV.FIAM.HHN. 2009-04-28T21:59:04.80 0.3 undecidable manual Sg 276 31.6461 -0.256 70
IV.LPEL.HHE. 2009-04-28T21:59:04.70 0.3 undecidable manual Pg 110 59.9955 -0.012 69
IV.LNSS.HHE. 2009-04-28T21:59:04.76 0.6 undecidable manual Pg 317 55.3002 0.773 38
IV.GUAR.HHZ. 2009-04-28T21:59:03.39 0.6 undecidable manual Pg 198 51.6039 -0.027 47
IV.CERT.HHE. 2009-04-28T21:59:03.67 0.3 undecidable manual Pg 233 53.4021 -0.023 70
IV.PTQR.SHZ. 2009-04-28T21:59:02.98 0.6 undecidable manual Sg 199 25.3524 -0.389 46
IV.CAMP.HHZ. 2009-04-28T21:59:01.05 0.3 undecidable manual Pg 347 33.8439 0.366 68
IV.TERO.HHN. 2009-04-28T21:59:01.83 0.3 undecidable manual Pg 11 43.5231 -0.339 67
IV.VVLD.HHZ. 2009-04-28T21:59:01.83 0.3 undecidable manual Pg 166 42.1245 -0.126 70
IV.INTR.HHZ. 2009-04-28T21:59:01.90 0.3 undecidable manual Pg 127 41.7249 0.011 72
IV.FIAM.HHN. 2009-04-28T21:59:00.33 0.1 undecidable manual Pg 276 31.6461 -0.014 97
MN.AQU.HHZ. 2009-04-28T21:59:00.04 0.6 undecidable manual Sg 328 15.1737 -0.172 49
IV.VCEL.EHZ. 2009-04-28T21:59:00.56 0.3 undecidable manual Pg 58 32.8449 0.037 73
IV.PTQR.SHZ. 2009-04-28T21:58:59.45 0.1 undecidable manual Pg 199 25.3524 0.086 97
MN.AQU.HHZ. 2009-04-28T21:58:57.84 0.1 undecidable manual Pg 328 15.1737 0.298 95
IV.FAGN.HHN. 2009-04-28T21:58:57.85 0.6 undecidable manual Sg 66 7.4814 -0.388 47
IV.FAGN.HHN. 2009-04-28T21:58:56.50 0.1 undecidable manual Pg 66 7.4814 0.092 100
IV.GIUL.HHZ. 2009-04-28T21:58:53.15 10.0 undecidable manual Pg 0 0 0
MN.VLC.HHE. 2009-04-28T21:58:52.68 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