Earthquake with magnitude of ML 1.3 on date 12-05-2009 and time 08:31:50 (Italy) in region 4 km NW Fossa (AQ)

A magnitude ML 1.3 earthquake occured in region: 4 km NW Fossa (AQ), on

  • 12-05-2009 06:31:50 (UTC)
  • 12-05-2009 08:31:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3230, 13.4650 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
Fossa AQ 4 721 721
Ocre AQ 4 1167 1888
Sant'Eusanio Forconese AQ 6 394 2282
L'Aquila AQ 6 69753 72035
Poggio Picenze AQ 6 1136 73171
Villa Sant'Angelo AQ 8 424 73595
San Demetrio ne' Vestini AQ 9 1854 75449
Rocca di Cambio AQ 10 533 75982
Barisciano AQ 10 1828 77810
Lucoli AQ 11 1011 78821
Fagnano Alto AQ 12 418 79239
Prata d'Ansidonia AQ 13 496 79735
Rocca di Mezzo AQ 14 1526 81261
Tornimparte AQ 14 3187 84448
Santo Stefano di Sessanio AQ 15 111 84559
Fontecchio AQ 15 369 84928
San Pio delle Camere AQ 16 661 85589
Scoppito AQ 18 3727 89316
Carapelle Calvisio AQ 18 87 89403
Castelvecchio Calvisio AQ 19 153 89556
Caporciano AQ 19 230 89786
Pizzoli AQ 19 4326 94112
Calascio AQ 19 137 94249
Tione degli Abruzzi AQ 19 310 94559

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km SE of L'Aquila (69753 inhabitants)
42 Km SW of Teramo (54892 inhabitants)
58 Km W of Chieti (51815 inhabitants)
60 Km W of Montesilvano (53738 inhabitants)
64 Km W of Pescara (121014 inhabitants)
68 Km NE of Tivoli (56533 inhabitants)
71 Km NE of Guidonia Montecelio (88673 inhabitants)
72 Km E of Terni (111501 inhabitants)
91 Km NE of Velletri (53303 inhabitants)
94 Km NE of Roma (2864731 inhabitants)
94 Km SE of Foligno (57155 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 1.5
ML 1.3
2009-05-12
06:31:50
42.323 13.465 11 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 862509
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-05-12 06:31:50 ± 0.2
Latitude 42.3230 ± 0.0162
Longitude 13.4650 ± 0.0134
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 862509

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2054
Semi-minor axis of confidence ellipse (meter) 470
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 211
Circular confidence region, given by single value of horizontal uncertainty (meter) 2109.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 168
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.31656
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.6
Num. used stations
Type of magnitude ML
Reference to an origin 862509
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 16:22:22

Md:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 862509
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 16:22:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TERO.HHE. 2009-05-12T06:32:01.89 0.3 undecidable manual Sg 19 35.1426 -0.207 68
IV.CAMP.HHZ. 2009-05-12T06:31:59.56 0.1 undecidable manual Sg 349 23.9538 0.427 89
IV.ALJA.HHN. 2009-05-12T06:31:57.75 10.0 undecidable manual Sg 0 0 0
IV.TERO.HHE. 2009-05-12T06:31:56.85 0.3 undecidable manual Pg 19 35.1426 -0.204 68
IV.FAGN.HHE. 2009-05-12T06:31:55.82 0.1 undecidable manual Sg 123 11.6772 0.191 95
IV.CAMP.HHZ. 2009-05-12T06:31:55.20 0.1 undecidable manual Pg 349 23.9538 -0.143 94
IV.T0104.EHE. 2009-05-12T06:31:55.52 0.1 undecidable manual Sg 291 11.1777 0.021 99
MN.AQU.HHZ. 2009-05-12T06:31:54.37 0.1 undecidable manual Sg 303 6.1938 -0.046 99
IV.T0104.EHE. 2009-05-12T06:31:53.21 0.1 undecidable manual Pg 291 11.1777 -0.032 98
IV.FAGN.HHE. 2009-05-12T06:31:53.23 0.1 undecidable manual Pg 123 11.6772 -0.088 97
MN.AQU.HHZ. 2009-05-12T06:31:52.62 0.1 undecidable manual Pg 303 6.1938 0.001 100
IV.ALJA.HHN. 2009-05-12T06:31:50.58 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