Earthquake with magnitude of ML 0.4 on date 15-07-2009 and time 01:51:21 (Italy) in region 6 km SE Cittareale (RI)

A magnitude ML 0.4 earthquake occured in region: 6 km SE Cittareale (RI), on

  • 14-07-2009 23:51:21 (UTC)
  • 15-07-2009 01:51:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.5750, 13.1970 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
Cittareale RI 6 482 482
Montereale AQ 7 2581 3063
Borbona RI 9 617 3680
Amatrice RI 10 2657 6337
Posta RI 10 694 7031
Capitignano AQ 11 665 7696
Cagnano Amiterno AQ 13 1369 9065
Accumoli RI 14 667 9732
Campotosto AQ 14 542 10274
Barete AQ 15 737 11011
Pizzoli AQ 17 4326 15337
Micigliano RI 18 127 15464
Leonessa RI 19 2435 17899
Antrodoco RI 20 2588 20487

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km NW of L'Aquila (69753 inhabitants)
43 Km W of Teramo (54892 inhabitants)
45 Km E of Terni (111501 inhabitants)
59 Km SE of Foligno (57155 inhabitants)
75 Km NE of Guidonia Montecelio (88673 inhabitants)
75 Km NE of Tivoli (56533 inhabitants)
78 Km W of Montesilvano (53738 inhabitants)
84 Km W of Chieti (51815 inhabitants)
84 Km W of Pescara (121014 inhabitants)
89 Km SE of Perugia (166134 inhabitants)
91 Km E of Viterbo (67173 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 1.5
ML 0.4
2009-07-14
23:51:21
42.575 13.197 11 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 926459
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-07-14 23:51:21 ± 0.19
Latitude 42.5750 ± 0.0108
Longitude 13.1970 ± 0.0049
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 926459

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1268
Semi-minor axis of confidence ellipse (meter) 332
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 167
Circular confidence region, given by single value of horizontal uncertainty (meter) 1264.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 236
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.26620
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 3
Magnitudes information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 926459
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 17:38:58

Md:1.5

Field Value
Value 1.5
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 926459
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 17:38:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2009-07-14T23:51:32.35 0.3 undecidable manual Sg 347 29.5482 0.072 72
IV.NRCA.HHZ. 2009-07-14T23:51:27.73 0.3 undecidable manual Pg 347 29.5482 -0.136 71
IV.LNSS.HHN. 2009-07-14T23:51:27.67 0.3 undecidable manual Sg 284 13.1757 -0.018 75
IV.SAN2.EHZ. 2009-07-14T23:51:26.63 0.3 undecidable manual Sg 48 9.2796 -0.063 75
IV.LNSS.HHN. 2009-07-14T23:51:25.23 0.1 undecidable manual Pg 284 13.1757 0.014 100
IV.SAN2.EHZ. 2009-07-14T23:51:24.71 0.1 undecidable manual Pg 48 9.2796 0.073 99
IV.STR3.BHZ. 2009-07-14T23:50:58.29 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