Earthquake with magnitude of ML 0.8 on date 22-02-2009 and time 04:12:25 (Italy) in region 6 km W Amatrice (RI)

A magnitude ML 0.8 earthquake occured in region: 6 km W Amatrice (RI), on

  • 22-02-2009 03:12:25 (UTC)
  • 22-02-2009 04:12:25 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6470, 13.2240 at 9 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
Amatrice RI 6 2657 2657
Accumoli RI 6 667 3324
Cittareale RI 6 482 3806
Montereale AQ 14 2581 6387
Arquata del Tronto AP 15 1178 7565
Capitignano AQ 15 665 8230
Campotosto AQ 16 542 8772
Borbona RI 17 617 9389
Posta RI 17 694 10083
Cascia PG 19 3217 13300
Norcia PG 19 4957 18257

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km NW of L'Aquila (69753 inhabitants)
39 Km W of Teramo (54892 inhabitants)
48 Km E of Terni (111501 inhabitants)
55 Km SE of Foligno (57155 inhabitants)
77 Km W of Montesilvano (53738 inhabitants)
83 Km NE of Guidonia Montecelio (88673 inhabitants)
84 Km NE of Tivoli (56533 inhabitants)
84 Km W of Pescara (121014 inhabitants)
84 Km W of Chieti (51815 inhabitants)
85 Km SE of Perugia (166134 inhabitants)
95 Km E of Viterbo (67173 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 0.8
2009-02-22
03:12:25
42.647 13.224 9 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 745609
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-02-22 03:12:25 ± 0.36
Latitude 42.6470 ± 0.0081
Longitude 13.2240 ± 0.0257
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 745609

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2211
Semi-minor axis of confidence ellipse (meter) 420
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 288
Circular confidence region, given by single value of horizontal uncertainty (meter) 2284.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 251
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.47754
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:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 745609
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:06:00

Md:1.7

Field Value
Value 1.7
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 745609
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:06:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FAGN.HHE. 2009-02-22T03:12:44.25 10.0 undecidable manual Pg 0 0 0
IV.MNS.HHE. 2009-02-22T03:12:43.00 0.6 undecidable manual Sg 237 53.0025 0.379 45
IV.CESI.HHN. 2009-02-22T03:12:41.11 0.6 undecidable manual Sg 327 47.4192 -0.014 49
IV.FDMO.HHE. 2009-02-22T03:12:40.46 0.3 undecidable manual Sg 346 44.622 0.091 73
IV.CESI.HHN. 2009-02-22T03:12:34.49 0.6 undecidable manual Pg 327 47.4192 -0.077 48
IV.MNS.HHE. 2009-02-22T03:12:34.77 0.3 undecidable manual Pg 237 53.0025 -0.662 62
IV.FDMO.HHE. 2009-02-22T03:12:34.23 0.3 undecidable manual Pg 346 44.622 0.099 73
IV.NRCA.HHZ. 2009-02-22T03:12:33.90 0.1 undecidable manual Sg 337 22.5552 -0.157 99
IV.LNSS.HHE. 2009-02-22T03:12:31.89 0.3 undecidable manual Sg 252 15.7731 -0.062 77
IV.NRCA.HHZ. 2009-02-22T03:12:30.62 0.1 undecidable manual Pg 337 22.5552 0.133 100
IV.LNSS.HHE. 2009-02-22T03:12:29.49 0.1 undecidable manual Pg 252 15.7731 0.219 99
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