Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 25-04-2009 and time 18:48:42 (Italy) in region 6 km S Campotosto (AQ)

A magnitude ML 2.0 earthquake occured in region: 6 km S Campotosto (AQ), on

  • 25-04-2009 16:48:42 (UTC)
  • 25-04-2009 18:48:42 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.5030, 13.3810 at 8 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
Campotosto AQ 6 542 542
Capitignano AQ 7 665 1207
Crognaleto TE 10 1297 2504
Barete AQ 10 737 3241
Pizzoli AQ 10 4326 7567
Montereale AQ 11 2581 10148
Cagnano Amiterno AQ 14 1369 11517
Fano Adriano TE 14 296 11813
Pietracamela TE 14 271 12084
Amatrice RI 16 2657 14741
L'Aquila AQ 17 69753 84494
Cortino TE 17 656 85150
Scoppito AQ 18 3727 88877

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km N of L'Aquila (69753 inhabitants)
32 Km SW of Teramo (54892 inhabitants)
60 Km E of Terni (111501 inhabitants)
63 Km W of Montesilvano (53738 inhabitants)
67 Km W of Chieti (51815 inhabitants)
69 Km W of Pescara (121014 inhabitants)
75 Km SE of Foligno (57155 inhabitants)
77 Km NE of Tivoli (56533 inhabitants)
78 Km NE of Guidonia Montecelio (88673 inhabitants)
100 Km NE of Roma (2864731 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 2009-04-25
16:48:42		 42.503 13.381 9 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 835139
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-25 16:48:42 ± 0.08
Latitude 42.5030 ± 0.0045
Longitude 13.3810 ± 0.0073
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 835139

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 547
Semi-minor axis of confidence ellipse (meter) 245
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 66
Circular confidence region, given by single value of horizontal uncertainty (meter) 781.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 54
Number of associated phases, regardless of their use for origin computation 41
Number of defining phases 29
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) 0.88223
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 18
Magnitude information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 835139
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 15:50:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PARC.HHE. 2009-04-25T16:49:14.56 10.0 undecidable manual Sg 0 0 0
IV.PARC.HHE. 2009-04-25T16:49:06.63 10.0 undecidable manual Pg 0 0 0
IV.PIEI.HHN. 2009-04-25T16:49:06.26 10.0 undecidable manual Pg 0 0 0
IV.ARVD.HHN. 2009-04-25T16:49:05.30 10.0 undecidable manual Pg 0 0 0
IV.INTR.HHZ. 2009-04-25T16:49:04.84 0.6 undecidable manual Sg 142 69.4749 0.636 39
IV.CESI.HHE. 2009-04-25T16:49:04.35 0.1 undecidable manual Sg 325 67.8765 0.571 80
IV.FDMO.HHE. 2009-04-25T16:49:03.03 0.1 undecidable manual Sg 338 63.7917 0.33 86
IV.GUMA.HHE. 2009-04-25T16:49:03.57 10.0 undecidable manual Pg 0 0 0
IV.TRTR.HHN. 2009-04-25T16:49:03.07 10.0 undecidable manual Pg 0 0 0
IV.MURB.HHN. 2009-04-25T16:49:02.60 10.0 undecidable manual Pg 0 0 0
IV.GUAR.HHZ. 2009-04-25T16:49:00.41 10.0 undecidable manual Pg 0 0 0
IV.PTQR.SHZ. 2009-04-25T16:48:59.32 0.3 undecidable manual Sg 178 53.4021 -0.608 61
IV.CING.HHZ. 2009-04-25T16:48:59.42 0.3 undecidable manual Pg 351 97.9242 -0.055 64
IV.SNTG.SHZ. 2009-04-25T16:48:58.29 10.0 undecidable manual Pg 0 0 0
IV.ASSB.HHE. 2009-04-25T16:48:57.36 0.3 undecidable manual Pg 316 83.9493 0.043 66
IV.VCEL.EHZ. 2009-04-25T16:48:56.92 0.1 undecidable manual Sg 108 39.5271 0.715 80
IV.CERT.HHN. 2009-04-25T16:48:56.09 10.0 undecidable manual Pg 0 0 0
IV.NRCA.SHZ. 2009-04-25T16:48:56.66 0.1 undecidable manual Sg 329 42.624 -0.385 89
IV.LPEL.HHZ. 2009-04-25T16:48:56.92 0.3 undecidable manual Pg 127 83.0502 -0.261 63
IV.SBPO.HHE. 2009-04-25T16:48:55.38 10.0 undecidable manual Pg 0 0 0
IV.VVLD.HHZ. 2009-04-25T16:48:55.85 0.6 undecidable manual Pg 164 73.0713 0.21 43
IV.FIAM.HHZ. 2009-04-25T16:48:54.77 0.1 undecidable manual Sg 220 33.9438 0.051 96
IV.CESI.HHE. 2009-04-25T16:48:54.78 0.1 positive manual Pg 325 67.8765 -0.06 91
IV.CESX.HHE. 2009-04-25T16:48:54.92 0.6 undecidable manual Pg 281 66.5778 0.283 43
IV.INTR.HHZ. 2009-04-25T16:48:54.64 0.3 undecidable manual Pg 142 69.4749 -0.445 62
IV.OFFI.HHZ. 2009-04-25T16:48:53.48 0.1 undecidable manual Pg 27 53.9016 0.785 76
IV.MNS.HHZ. 2009-04-25T16:48:53.26 0.3 undecidable manual Pg 257 58.7967 -0.183 67
IV.FDMO.HHE. 2009-04-25T16:48:53.88 0.1 undecidable manual Pg 338 63.7917 -0.339 86
IV.LNSS.HHZ. 2009-04-25T16:48:53.47 0.1 undecidable manual Sg 292 29.9478 0.033 97
IV.PTQR.SHZ. 2009-04-25T16:48:52.78 0.1 undecidable manual Pg 178 53.4021 0.164 91
IV.TERO.HHZ. 2009-04-25T16:48:50.36 0.1 undecidable manual Sg 54 22.4553 -0.612 86
IV.NRCA.SHZ. 2009-04-25T16:48:50.65 0.1 negative manual Pg 329 42.624 -0.304 90
MN.AQU.HHZ. 2009-04-25T16:48:49.20 0.1 undecidable manual Sg 174 16.6722 0.088 99
IV.FIAM.HHZ. 2009-04-25T16:48:49.24 0.1 undecidable manual Pg 220 33.9438 -0.371 90
IV.VCEL.EHZ. 2009-04-25T16:48:49.93 0.1 undecidable manual Pg 108 39.5271 -0.539 86
IV.LNSS.HHZ. 2009-04-25T16:48:48.81 0.1 positive manual Pg 292 29.9478 -0.06 97
IV.TERO.HHZ. 2009-04-25T16:48:47.26 0.1 positive manual Pg 54 22.4553 -0.184 96
IV.CAMP.HHE. 2009-04-25T16:48:46.04 0.1 undecidable manual Sg 32 4.2957 0.126 100
MN.AQU.HHZ. 2009-04-25T16:48:46.70 0.1 undecidable manual Pg 174 16.6722 0.327 94
IV.CAMP.HHE. 2009-04-25T16:48:44.89 0.1 positive manual Pg 32 4.2957 0.366 95
IV.STR3.BHE. 2009-04-25T16:48:31.94 10.0 undecidable manual Pg 0 0 0
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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