Earthquake with magnitude of ML 1.3 on date 30-04-2009 and time 06:30:20 (UTC) in region 5 km NW L'Aquila (AQ)

A magnitude ML 1.3 earthquake occured in region: 5 km NW L'Aquila (AQ), on

  • 30-04-2009 06:30:20 (UTC)
  • 30-04-2009 08:30:20 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3910, 13.3640 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
L'Aquila AQ 5 69753 69753
Pizzoli AQ 8 4326 74079
Scoppito AQ 9 3727 77806
Barete AQ 10 737 78543
Lucoli AQ 11 1011 79554
Tornimparte AQ 12 3187 82741
Cagnano Amiterno AQ 14 1369 84110
Ocre AQ 15 1167 85277
Fossa AQ 15 721 85998
Capitignano AQ 15 665 86663
Poggio Picenze AQ 17 1136 87799
Sant'Eusanio Forconese AQ 17 394 88193
Montereale AQ 18 2581 90774
Campotosto AQ 19 542 91316
Villa Sant'Angelo AQ 20 424 91740
San Demetrio ne' Vestini AQ 20 1854 93594
Crognaleto TE 20 1297 94891
Rocca di Cambio AQ 20 533 95424

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km NW of L'Aquila (69753 inhabitants)
41 Km SW of Teramo (54892 inhabitants)
62 Km E of Terni (111501 inhabitants)
66 Km W of Montesilvano (53738 inhabitants)
66 Km W of Chieti (51815 inhabitants)
66 Km NE of Tivoli (56533 inhabitants)
68 Km NE of Guidonia Montecelio (88673 inhabitants)
70 Km W of Pescara (121014 inhabitants)
83 Km SE of Foligno (57155 inhabitants)
91 Km NE of Roma (2864731 inhabitants)
92 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 1.6
ML 1.3
2009-04-30
06:30:20
42.391 13.364 8 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 842589
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-30 06:30:20 ± 0.14
Latitude 42.3910 ± 0.0072
Longitude 13.3640 ± 0.0110
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 842589

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 888
Semi-minor axis of confidence ellipse (meter) 719
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 114
Circular confidence region, given by single value of horizontal uncertainty (meter) 1204.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 95
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.49
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.47844
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 842589
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 15:58:56

Md:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 842589
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 15:58:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.HHN. 2009-04-30T06:30:37.52 1.0 undecidable manual Sg 337 53.1024 -0.428 21
IV.VCEL.EHN. 2009-04-30T06:30:34.66 0.3 undecidable manual Sg 89 39.0276 0.481 64
IV.TERO.HHE. 2009-04-30T06:30:31.28 0.6 undecidable manual Sg 37 32.3454 -0.74 39
IV.NRCA.HHN. 2009-04-30T06:30:30.29 0.1 undecidable manual Pg 337 53.1024 -0.29 87
IV.FAGN.HHZ. 2009-04-30T06:30:29.02 1.0 undecidable manual Sg 128 22.755 0.193 23
IV.VCEL.EHN. 2009-04-30T06:30:28.64 1.0 undecidable manual Pg 89 39.0276 0.238 23
IV.LNSS.HHN. 2009-04-30T06:30:28.25 0.1 undecidable manual Pg 312 35.4423 0.489 86
IV.CAMP.HHZ. 2009-04-30T06:30:27.47 0.6 undecidable manual Sg 13 16.4724 0.688 41
IV.TERO.HHE. 2009-04-30T06:30:26.40 0.3 undecidable manual Pg 37 32.3454 -0.756 59
IV.FAGN.HHZ. 2009-04-30T06:30:25.03 0.6 undecidable manual Pg 128 22.755 -0.283 46
IV.T0101.HLZ. 2009-04-30T06:30:24.35 0.3 undecidable manual Sg 217 8.3805 -0.07 74
IV.CAMP.HHZ. 2009-04-30T06:30:24.37 0.1 undecidable manual Pg 13 16.4724 0.237 94
MN.AQU.HHZ. 2009-04-30T06:30:23.85 0.6 undecidable manual Sg 143 5.1948 0.178 49
MN.AQU.HHZ. 2009-04-30T06:30:22.37 0.1 undecidable manual Pg 143 5.1948 0.033 100
IV.T0101.HLZ. 2009-04-30T06:30:22.57 0.1 undecidable manual Pg 217 8.3805 -0.198 96
IV.STR3.BHN. 2009-04-30T06:30:02.29 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