Earthquake with magnitude of ML 1.6 on date 22-08-2011 and time 06:20:50 (Italy) in region Adriatico Settentrionale (MARE)

A magnitude ML 1.6 earthquake occured in region: Adriatico Settentrionale (MARE), on

  • 22-08-2011 04:20:50 (UTC)
  • 22-08-2011 06:20:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.1790, 13.6360 at 36 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
62 Km NE of Fano (60888 inhabitants)
63 Km N of Ancona (100861 inhabitants)
65 Km E of Pesaro (94582 inhabitants)
86 Km E of Rimini (147750 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 2.2
ML 1.6
2011-08-22
04:20:50
44.179 13.636 36 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1275789
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-08-22 04:20:50 ± 0.26
Latitude 44.1790 ± 0.0872
Longitude 13.6360 ± 0.0539
Depth (km) 36 ± 5 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1275789

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 10484
Semi-minor axis of confidence ellipse (meter) 1368
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 337
Circular confidence region, given by single value of horizontal uncertainty (meter) 10610.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 337
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.02073
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 1275789
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 01:12:31

Md:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 1275789
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 01:12:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ECNV.HHE. 2011-08-22T04:22:14.18 10.0 undecidable manual Sg 0 0 0
IV.ECNV.HHE. 2011-08-22T04:22:10.94 10.0 undecidable manual Pg 0 0 0
IV.FNVD.HHN. 2011-08-22T04:22:09.63 10.0 undecidable manual Pg 0 0 0
IV.MNO.SHZ. 2011-08-22T04:22:09.50 10.0 undecidable manual Pg 0 0 0
IV.NOV.HHE. 2011-08-22T04:22:08.10 10.0 undecidable manual Pg 0 0 0
IV.GMB.BHN. 2011-08-22T04:22:06.90 10.0 undecidable manual Pg 0 0 0
IV.ESLN.HHN. 2011-08-22T04:21:54.86 10.0 undecidable manual Pg 0 0 0
IV.FIR.HHE. 2011-08-22T04:21:44.72 10.0 undecidable manual Pg 0 0 0
IV.ROVR.HHN. 2011-08-22T04:21:29.45 10.0 undecidable manual Pg 0 0 0
IV.CRAC.EHE. 2011-08-22T04:21:23.35 10.0 undecidable manual Pg 0 0 0
IV.PIEI.HHZ. 2011-08-22T04:21:22.05 0.6 undecidable manual Sg 231 113.2977 -0.109 46
IV.FRON.EHE. 2011-08-22T04:21:20.30 0.6 undecidable manual Sg 225 103.3188 0.295 46
IV.MPAG.EHN. 2011-08-22T04:21:17.38 0.6 undecidable manual Sg 229 92.8404 -0.367 46
IV.FSSB.HHE. 2011-08-22T04:21:16.76 0.6 undecidable manual Sg 232 87.246 0.226 48
IV.PESA.HHE. 2011-08-22T04:21:12.22 0.6 undecidable manual Sg 248 68.6757 -0.059 52
IV.ORI.HHE. 2011-08-22T04:21:09.75 10.0 undecidable manual Pg 0 0 0
IV.PIEI.HHZ. 2011-08-22T04:21:08.70 0.1 undecidable manual Pg 231 113.2977 0.079 94
IV.FRON.EHE. 2011-08-22T04:21:07.11 0.6 undecidable manual Pg 225 103.3188 -0.268 46
IV.MPAG.EHN. 2011-08-22T04:21:06.09 0.3 undecidable manual Pg 229 92.8404 0.016 74
IV.FSSB.HHE. 2011-08-22T04:21:05.37 0.1 undecidable manual Pg 232 87.246 -0.004 100
IV.PESA.HHE. 2011-08-22T04:21:02.96 0.3 undecidable manual Pg 248 68.6757 0.043 77
IV.CAMP.HHZ. 2011-08-22T04:20:48.72 10.0 undecidable manual Pg 0 0 0
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download