Earthquake with magnitude of ML 1.0 on date 22-08-2005 and time 00:23:42 (Italy) in region 7 km SW Acquasanta Terme (AP)

A magnitude ML 1.0 earthquake occured in region: 7 km SW Acquasanta Terme (AP), on

  • 21-08-2005 22:23:42 (UTC)
  • 22-08-2005 00:23:42 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7130, 13.3780 at 2 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
Acquasanta Terme AP 7 2916 2916
Arquata del Tronto AP 9 1178 4094
Valle Castellana TE 10 977 5071
Accumoli RI 11 667 5738
Amatrice RI 12 2657 8395
Rocca Santa Maria TE 13 537 8932
Cortino TE 15 656 9588
Montegallo AP 15 523 10111
Campotosto AQ 17 542 10653
Roccafluvione AP 18 2010 12663

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km W of Teramo (54892 inhabitants)
40 Km N of L'Aquila (69753 inhabitants)
61 Km E of Foligno (57155 inhabitants)
62 Km E of Terni (111501 inhabitants)
67 Km W of Montesilvano (53738 inhabitants)
74 Km W of Pescara (121014 inhabitants)
76 Km NW of Chieti (51815 inhabitants)
92 Km E of Perugia (166134 inhabitants)
96 Km NE of Guidonia Montecelio (88673 inhabitants)
96 Km NE of Tivoli (56533 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 1.7
ML 1.0
2005-08-21
22:23:42
42.713 13.378 2 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 530849
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2005-08-21 22:23:42 ± 0.08
Latitude 42.7130 ± 0.0063
Longitude 13.3780 ± 0.0049
Depth (km) 2 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 530849

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 789
Semi-minor axis of confidence ellipse (meter) 98
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 269
Circular confidence region, given by single value of horizontal uncertainty (meter) 806.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 176
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) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.27160
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:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 530849
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 10:16:11

Md:1.7

Field Value
Value 1.7
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 530849
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 10:16:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FAGN.EHN. 2005-08-21T22:23:59.50 10.0 undecidable manual Pg 0 0 0
IV.LNSS.BHN. 2005-08-21T22:23:53.30 0.1 undecidable manual Sg 246 30.1476 0.032 49
IV.NRCA.SHZ. 2005-08-21T22:23:51.30 0.3 undecidable manual Sg 302 25.2525 -0.25 35
IV.TERO.HHE. 2005-08-21T22:23:49.98 0.1 undecidable manual Sg 118 20.9679 -0.026 50
IV.LNSS.BHN. 2005-08-21T22:23:48.52 0.1 undecidable manual Pg 246 30.1476 -0.027 98
IV.NRCA.SHZ. 2005-08-21T22:23:47.72 0.1 undecidable manual Pg 302 25.2525 0.133 97
IV.TERO.HHE. 2005-08-21T22:23:46.71 0.1 positive manual Pg 118 20.9679 -0.007 100
IV.MSC.SHZ. 2005-08-21T22:23:40.70 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