Earthquake with magnitude of ML 1.2 on date 28-09-2011 and time 01:26:20 (Italy) in region Costa Marchigiana Pesarese (Pesaro Urbino)

A magnitude ML 1.2 earthquake occured in region: Costa Marchigiana Pesarese (Pesaro Urbino), on

  • 27-09-2011 23:26:20 (UTC)
  • 28-09-2011 01:26:20 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.0840, 12.8870 at 26 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
Gabicce Mare PU 17 5781 5781
Cattolica RN 17 17125 22906
Gradara PU 18 4835 27741
Pesaro PU 19 94582 122323
Misano Adriatico RN 20 13014 135337

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km N of Pesaro (94582 inhabitants)
26 Km E of Rimini (147750 inhabitants)
29 Km NW of Fano (60888 inhabitants)
52 Km E of Cesena (96758 inhabitants)
66 Km SE of Ravenna (159116 inhabitants)
69 Km E of Forlì (117913 inhabitants)
73 Km NW of Ancona (100861 inhabitants)
83 Km E of Faenza (58541 inhabitants)
98 Km E of Imola (69797 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 1.2
2011-09-27
23:26:20
44.084 12.887 26 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1291379
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-09-27 23:26:20 ± 0.54
Latitude 44.0840 ± 0.0243
Longitude 12.8870 ± 0.0363
Depth (km) 26 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1291379

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3423
Semi-minor axis of confidence ellipse (meter) 1294
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 315
Circular confidence region, given by single value of horizontal uncertainty (meter) 3962.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 347
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0.14659
Epicentral distance of station farthest from the epicenter (degree) 0.60344
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 1291379
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 01:34:32

Md:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations
Type of magnitude Md
Reference to an origin 1291379
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 01:34:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PIEI.HHN. 2011-09-27T23:26:41.99 0.6 undecidable manual Sg 205 66.9774 0.277 45
IV.FSSB.HHN. 2011-09-27T23:26:35.97 0.6 undecidable manual Sg 192 44.2224 0.01 50
IV.PIEI.HHN. 2011-09-27T23:26:32.57 0.3 undecidable manual Pg 205 66.9774 -0.331 67
IV.FSSB.HHN. 2011-09-27T23:26:29.56 0.1 undecidable manual Pg 192 44.2224 -0.015 99
IV.PESA.HHN. 2011-09-27T23:26:29.81 0.3 undecidable manual Sg 193 16.2726 -0.179 76
IV.PESA.HHN. 2011-09-27T23:26:26.36 0.1 undecidable manual Pg 193 16.2726 0.227 100
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