Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 09-04-2009 and time 01:46:05 (Italy) in region 5 km SE Pizzoli (AQ)

A magnitude ML 1.9 earthquake occured in region: 5 km SE Pizzoli (AQ), on

  • 08-04-2009 23:46:05 (UTC)
  • 09-04-2009 01:46:05 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3960, 13.3310 at 11 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
Pizzoli AQ 5 4326 4326
Scoppito AQ 7 3727 8053
Barete AQ 7 737 8790
L'Aquila AQ 7 69753 78543
Cagnano Amiterno AQ 11 1369 79912
Lucoli AQ 12 1011 80923
Tornimparte AQ 12 3187 84110
Capitignano AQ 14 665 84775
Montereale AQ 16 2581 87356
Ocre AQ 17 1167 88523
Fossa AQ 17 721 89244
Campotosto AQ 18 542 89786
Poggio Picenze AQ 19 1136 90922
Sant'Eusanio Forconese AQ 20 394 91316

Municipalities with at least 50000 inhabitants

An earthquake occurred to
7 Km NW of L'Aquila (69753 inhabitants)
42 Km SW of Teramo (54892 inhabitants)
59 Km E of Terni (111501 inhabitants)
65 Km NE of Tivoli (56533 inhabitants)
66 Km NE of Guidonia Montecelio (88673 inhabitants)
69 Km W of Montesilvano (53738 inhabitants)
69 Km W of Chieti (51815 inhabitants)
73 Km W of Pescara (121014 inhabitants)
81 Km SE of Foligno (57155 inhabitants)
89 Km NE of Roma (2864731 inhabitants)
91 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 1.9 		2009-04-08
23:46:05		 42.396 13.331 11 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 776659
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-08 23:46:05 ± 0.08
Latitude 42.3960 ± 0.0045
Longitude 13.3310 ± 0.0085
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 776659

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 679
Semi-minor axis of confidence ellipse (meter) 476
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 98
Circular confidence region, given by single value of horizontal uncertainty (meter) 860.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 49
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 25
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) 0.60075
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 15
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 776659
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:41:54

Md:2.3

Field Value
Value 2.3
Uncertainty 0.5
Num. used stations
Type of magnitude Md
Reference to an origin 776659
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:41:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARVD.HHE. 2009-04-08T23:46:40.45 10.0 undecidable manual Sg 0 0 0
IV.POFI.HHE. 2009-04-08T23:46:28.79 10.0 undecidable manual Pg 0 0 0
IV.CESX.HHE. 2009-04-08T23:46:26.84 10.0 undecidable manual Pg 0 0 0
IV.ZCCA.HHN. 2009-04-08T23:46:26.40 10.0 undecidable manual Pg 0 0 0
IV.FDMO.HHE. 2009-04-08T23:46:26.89 10.0 undecidable manual Pg 0 0 0
IV.ARVD.HHE. 2009-04-08T23:46:25.23 10.0 undecidable manual Pg 0 0 0
IV.CERT.HHN. 2009-04-08T23:46:23.16 0.3 undecidable manual Sg 210 57.2982 0.161 68
IV.SDI.SHZ. 2009-04-08T23:46:22.73 10.0 undecidable manual Pg 0 0 0
IV.NRCA.HHZ. 2009-04-08T23:46:21.70 0.6 undecidable manual Sg 340 51.7038 0.202 45
IV.PTQR.SHZ. 2009-04-08T23:46:18.92 0.6 undecidable manual Sg 172 41.8248 0.047 48
IV.INTR.HHZ. 2009-04-08T23:46:17.94 10.0 undecidable manual Pg 0 0 0
IV.GUAR.HHN. 2009-04-08T23:46:17.55 0.3 undecidable manual Pg 181 66.6777 0.648 59
IV.OFFI.HHE. 2009-04-08T23:46:17.96 0.3 undecidable manual Pg 26 66.378 1.107 48
IV.VVLD.HHZ. 2009-04-08T23:46:16.20 0.3 undecidable manual Pg 158 63.0924 -0.138 68
IV.TERO.HHN. 2009-04-08T23:46:16.22 0.3 undecidable manual Sg 41 33.6441 -0.458 67
IV.LNSS.HHE. 2009-04-08T23:46:16.66 0.6 undecidable manual Sg 314 33.0447 0.123 48
IV.CERT.HHN. 2009-04-08T23:46:15.33 0.1 undecidable manual Pg 210 57.2982 -0.118 92
IV.MNS.HHZ. 2009-04-08T23:46:14.58 0.3 undecidable manual Pg 269 53.3022 -0.252 67
IV.FAGN.HHE. 2009-04-08T23:46:14.77 0.6 undecidable manual Sg 125 25.2525 0.339 46
IV.NRCA.HHZ. 2009-04-08T23:46:14.51 0.1 undecidable manual Pg 340 51.7038 -0.076 93
IV.FIAM.HHE. 2009-04-08T23:46:13.48 0.6 undecidable manual Sg 231 22.5552 -0.252 47
IV.VCEL.EHE. 2009-04-08T23:46:12.39 0.6 undecidable manual Pg 90 41.7249 -0.653 41
IV.PTQR.SHZ. 2009-04-08T23:46:12.46 0.1 undecidable manual Pg 172 41.8248 -0.606 83
IV.CAMP.HHE. 2009-04-08T23:46:11.85 0.3 undecidable manual Sg 22 16.7721 -0.163 73
IV.TERO.HHN. 2009-04-08T23:46:11.59 0.1 undecidable manual Pg 41 33.6441 -0.204 94
IV.LNSS.HHE. 2009-04-08T23:46:11.76 0.1 undecidable manual Pg 314 33.0447 0.043 97
IV.FIAM.HHE. 2009-04-08T23:46:10.15 0.1 undecidable manual Pg 231 22.5552 0.053 99
IV.FAGN.HHE. 2009-04-08T23:46:10.94 0.6 undecidable manual Pg 125 25.2525 0.434 45
MN.AQU.HHZ. 2009-04-08T23:46:09.66 0.3 undecidable manual Sg 129 7.3815 0.042 76
IV.CAMP.HHE. 2009-04-08T23:46:09.25 0.1 undecidable manual Pg 22 16.7721 0.144 98
IV.T0104.EHZ. 2009-04-08T23:46:08.77 0.1 undecidable manual Sg 172 3.996 -0.285 97
IV.T0104.EHZ. 2009-04-08T23:46:07.55 0.1 undecidable manual Pg 172 3.996 0.147 100
MN.AQU.HHZ. 2009-04-08T23:46:07.96 0.1 undecidable manual Pg 129 7.3815 0.241 98
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