Earthquake with magnitude of ML 0.3 on date 24-09-2009 and time 01:42:26 (UTC) in region 3 km W Cittareale (RI)

A magnitude ML 0.3 earthquake occured in region: 3 km W Cittareale (RI), on

  • 24-09-2009 01:42:26 (UTC)
  • 24-09-2009 03:42:26 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6130, 13.1310 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
Cittareale RI 3 482 482
Posta RI 10 694 1176
Borbona RI 11 617 1793
Amatrice RI 13 2657 4450
Accumoli RI 13 667 5117
Montereale AQ 14 2581 7698
Leonessa RI 15 2435 10133
Monteleone di Spoleto PG 15 599 10732
Cascia PG 15 3217 13949
Capitignano AQ 17 665 14614
Cagnano Amiterno AQ 19 1369 15983
Micigliano RI 19 127 16110
Poggiodomo PG 19 117 16227

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km NW of L'Aquila (69753 inhabitants)
40 Km E of Terni (111501 inhabitants)
47 Km W of Teramo (54892 inhabitants)
52 Km SE of Foligno (57155 inhabitants)
76 Km NE of Guidonia Montecelio (88673 inhabitants)
77 Km NE of Tivoli (56533 inhabitants)
82 Km SE of Perugia (166134 inhabitants)
84 Km W of Montesilvano (53738 inhabitants)
87 Km E of Viterbo (67173 inhabitants)
90 Km W of Chieti (51815 inhabitants)
90 Km W of Pescara (121014 inhabitants)
96 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
Md 1.4
ML 0.3
2009-09-24
01:42:26
42.613 13.131 8 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 968429
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-09-24 01:42:26 ± 0.19
Latitude 42.6130 ± 0.0045
Longitude 13.1310 ± 0.0037
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 968429

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 373
Semi-minor axis of confidence ellipse (meter) 368
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 346
Circular confidence region, given by single value of horizontal uncertainty (meter) 583.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 179
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.22123
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 3
Magnitudes information

ML:0.3

Field Value
Value 0.3
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 968429
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 18:30:31

Md:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 968429
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 18:30:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.HHN. 2009-09-24T01:42:35.88 0.3 undecidable manual Sg 357 24.5532 0.067 72
IV.SMA1.EHZ. 2009-09-24T01:42:33.29 0.3 undecidable manual Sg 83 16.872 -0.048 73
IV.NRCA.HHN. 2009-09-24T01:42:31.83 0.6 undecidable manual Pg 357 24.5532 -0.178 47
IV.SMA1.EHZ. 2009-09-24T01:42:30.64 0.1 undecidable manual Pg 83 16.872 0.062 97
IV.LNSS.HHZ. 2009-09-24T01:42:30.69 0.1 undecidable manual Sg 262 7.4814 -0.013 100
IV.LNSS.HHZ. 2009-09-24T01:42:29.08 0.1 undecidable manual Pg 262 7.4814 0.023 100
IV.TERO.HHN. 2009-09-24T01:42:19.86 10.0 undecidable manual Pg 0 0 0
IV.MMN.HHE. 2009-09-24T01:42:14.64 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