Earthquake with magnitude of ML 1.8 on date 09-04-2009 and time 01:03:22 (Italy) in region 3 km SW Pizzoli (AQ)

A magnitude ML 1.8 earthquake occured in region: 3 km SW Pizzoli (AQ), on

  • 08-04-2009 23:03:22 (UTC)
  • 09-04-2009 01:03:22 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.4230, 13.2680 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.

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 3 4326 4326
Barete AQ 3 737 5063
Cagnano Amiterno AQ 5 1369 6432
Scoppito AQ 6 3727 10159
Capitignano AQ 11 665 10824
Montereale AQ 12 2581 13405
L'Aquila AQ 13 69753 83158
Tornimparte AQ 15 3187 86345
Borbona RI 15 617 86962
Antrodoco RI 15 2588 89550
Lucoli AQ 16 1011 90561
Borgo Velino RI 17 972 91533
Campotosto AQ 17 542 92075
Micigliano RI 18 127 92202
Posta RI 18 694 92896
Castel Sant'Angelo RI 20 1308 94204

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km NW of L'Aquila (69753 inhabitants)
45 Km SW of Teramo (54892 inhabitants)
53 Km E of Terni (111501 inhabitants)
64 Km NE of Tivoli (56533 inhabitants)
65 Km NE of Guidonia Montecelio (88673 inhabitants)
73 Km W of Montesilvano (53738 inhabitants)
74 Km W of Chieti (51815 inhabitants)
75 Km SE of Foligno (57155 inhabitants)
78 Km W of Pescara (121014 inhabitants)
87 Km NE of Roma (2864731 inhabitants)
91 Km NE of Velletri (53303 inhabitants)
95 Km E of Viterbo (67173 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 1.9
ML 1.8
2009-04-08
23:03:22
42.423 13.268 11 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 776429
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-08 23:03:22 ± 0.06
Latitude 42.4230 ± 0.0027
Longitude 13.2680 ± 0.0073
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 776429

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 625
Semi-minor axis of confidence ellipse (meter) 286
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 77
Circular confidence region, given by single value of horizontal uncertainty (meter) 670.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 99
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.63942
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.5
Num. used stations
Type of magnitude ML
Reference to an origin 776429
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:41:37

Md:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations
Type of magnitude Md
Reference to an origin 776429
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:41:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CRAC.EHZ. 2009-04-08T23:04:08.73 10.0 undecidable manual Pg 0 0 0
IV.PIEI.HHE. 2009-04-08T23:04:07.53 10.0 undecidable manual Pg 0 0 0
IV.SNTG.SHZ. 2009-04-08T23:03:52.43 10.0 undecidable manual Pg 0 0 0
IV.ASSB.HHN. 2009-04-08T23:03:48.68 10.0 undecidable manual Pg 0 0 0
IV.SDI.SHZ. 2009-04-08T23:03:38.93 10.0 undecidable manual Pg 0 0 0
IV.NRCA.HHZ. 2009-04-08T23:03:37.49 0.1 undecidable manual Sg 345 47.2194 0.061 94
IV.PTQR.SHZ. 2009-04-08T23:03:36.76 0.1 undecidable manual Sg 166 45.8208 -0.288 90
IV.CESI.HHE. 2009-04-08T23:03:34.69 0.1 undecidable manual Pg 335 70.9734 0.001 91
IV.LNSS.HHZ. 2009-04-08T23:03:32.08 0.1 undecidable manual Sg 317 27.2505 -0.024 98
IV.VCEL.EHZ. 2009-04-08T23:03:31.45 0.3 undecidable manual Pg 94 47.0196 0.464 65
IV.MNS.HHE. 2009-04-08T23:03:31.25 0.1 undecidable manual Pg 265 48.2184 0.076 93
OE.ARSA.HHN. 2009-04-08T23:03:31.62 10.0 undecidable manual Pg 0 0 0
IV.NRCA.HHZ. 2009-04-08T23:03:30.87 0.1 undecidable manual Pg 345 47.2194 -0.155 92
IV.PTQR.SHZ. 2009-04-08T23:03:30.69 0.1 undecidable manual Pg 166 45.8208 -0.112 93
IV.CAMP.HHZ. 2009-04-08T23:03:29.01 0.1 undecidable manual Sg 43 17.0718 -0.23 96
IV.LNSS.HHZ. 2009-04-08T23:03:28.01 0.1 undecidable manual Pg 317 27.2505 0.063 97
MN.AQU.HHZ. 2009-04-08T23:03:28.25 0.1 undecidable manual Sg 125 13.3755 0.047 100
.FAGN.HHZ. 2009-04-08T23:03:28.62 0.3 undecidable manual Pg 124 31.2465 0.062 72
IV.T0104.EHE. 2009-04-08T23:03:27.00 0.1 undecidable manual Sg 140 9.0798 -0.116 99
IV.CAMP.HHZ. 2009-04-08T23:03:26.25 0.1 undecidable manual Pg 43 17.0718 -0.041 99
IV.T0104.EHE. 2009-04-08T23:03:25.23 0.1 undecidable manual Pg 140 9.0798 0.16 98
MN.AQU.HHZ. 2009-04-08T23:03:25.87 0.1 undecidable manual Pg 125 13.3755 0.173 97
SI.ROSI.BHE. 2009-04-08T23:03:06.90 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