Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 26-08-2011 and time 15:07:49 (Italy) in region Costa Marchigiana Pesarese (Pesaro Urbino)

A magnitude ML 1.8 earthquake occured in region: Costa Marchigiana Pesarese (Pesaro Urbino), on

  • 26-08-2011 13:07:49 (UTC)
  • 26-08-2011 15:07:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.9540, 13.0710 at 31 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Fano PU 13 60888 60888
Pesaro PU 13 94582 155470

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km NE of Fano (60888 inhabitants)
13 Km E of Pesaro (94582 inhabitants)
42 Km E of Rimini (147750 inhabitants)
52 Km NW of Ancona (100861 inhabitants)
69 Km E of Cesena (96758 inhabitants)
87 Km SE of Ravenna (159116 inhabitants)
88 Km E of Forlì (117913 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 		ML 1.8 2011-08-26
13:07:49		 43.954 13.071 31 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 1277939
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-08-26 13:07:49 ± 0.18
Latitude 43.9540 ± 0.0081
Longitude 13.0710 ± 0.0137
Depth (km) 31 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1277939

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 958
Semi-minor axis of confidence ellipse (meter) 693
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 118
Circular confidence region, given by single value of horizontal uncertainty (meter) 1421.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 265
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.93709
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 17
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 1277939
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 01:15:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GUAR.HHN. 2011-08-26T13:08:34.47 10.0 undecidable manual Pg 0 0 0
IV.ATCC.EHN. 2011-08-26T13:08:17.95 0.6 undecidable manual Sg 202 92.0412 0.742 36
IV.BADI.EHN. 2011-08-26T13:08:15.07 0.6 undecidable manual Sg 234 82.5507 0.303 42
IV.ATVO.HHN. 2011-08-26T13:08:14.85 0.6 undecidable manual Sg 220 82.8504 0.015 45
IV.ATPC.HHE. 2011-08-26T13:08:12.48 0.6 undecidable manual Sg 223 71.9724 0.425 42
IV.MGAB.HHE. 2011-08-26T13:08:12.38 10.0 undecidable manual Pg 0 0 0
IV.PIEI.HHN. 2011-08-26T13:08:09.64 0.1 undecidable manual Sg 223 63.1923 -0.216 89
IV.FRON.EHE. 2011-08-26T13:08:08.11 0.6 undecidable manual Sg 210 55.6998 0.103 46
IV.ASQU.HHZ. 2011-08-26T13:08:07.47 0.3 undecidable manual Pg 261 104.0181 0.171 62
IV.ARVD.HHN. 2011-08-26T13:08:07.08 0.6 undecidable manual Sg 192 51.6039 0.071 47
IV.ATCC.EHN. 2011-08-26T13:08:06.02 0.1 undecidable manual Pg 202 92.0412 0.508 79
IV.MURB.HHE. 2011-08-26T13:08:06.57 10.0 undecidable manual Pg 0 0 0
IV.SNTG.HHN. 2011-08-26T13:08:04.01 0.1 undecidable manual Pg 188 78.1662 0.555 79
IV.MPAG.EHZ. 2011-08-26T13:08:04.90 0.3 undecidable manual Sg 215 43.8228 -0.27 68
IV.ATVO.HHN. 2011-08-26T13:08:04.06 0.1 undecidable manual Pg 220 82.8504 -0.085 88
IV.BADI.EHN. 2011-08-26T13:08:03.97 0.1 undecidable manual Pg 234 82.5507 -0.135 88
IV.FSSB.HHZ. 2011-08-26T13:08:03.50 0.6 undecidable manual Sg 219 37.2294 -0.201 47
IV.T0502.EHZ. 2011-08-26T13:08:03.29 0.6 undecidable manual Pg 266 74.8695 0.325 42
IV.PARC.HHE. 2011-08-26T13:08:02.61 0.1 undecidable manual Pg 243 74.7696 -0.339 85
IV.CRE.HHZ. 2011-08-26T13:08:02.74 10.0 undecidable manual Pg 0 0 0
IV.ATPC.HHE. 2011-08-26T13:08:02.28 0.1 undecidable manual Pg 223 71.9724 -0.256 87
IV.CING.HHZ. 2011-08-26T13:08:01.83 0.3 undecidable manual Pg 171 64.8906 0.317 65
IV.CPGN.EHN. 2011-08-26T13:08:01.49 0.3 undecidable manual Pg 255 62.3931 0.342 65
IV.PESA.HHZ. 2011-08-26T13:08:00.48 0.3 undecidable manual Sg 266 18.4704 0.334 70
IV.PIEI.HHN. 2011-08-26T13:08:00.83 0.1 undecidable manual Pg 223 63.1923 -0.44 85
IV.SSFR.HHZ. 2011-08-26T13:08:00.81 0.3 undecidable manual Pg 202 61.8936 -0.27 67
IV.ARVD.HHN. 2011-08-26T13:07:59.37 0.1 undecidable manual Pg 192 51.6039 -0.252 91
IV.FRON.EHE. 2011-08-26T13:07:59.99 0.3 undecidable manual Pg 210 55.6998 -0.211 68
IV.MPAG.EHZ. 2011-08-26T13:07:58.26 0.1 undecidable manual Pg 215 43.8228 -0.3 91
IV.FSSB.HHZ. 2011-08-26T13:07:57.39 0.3 undecidable manual Pg 219 37.2294 -0.323 69
IV.PESA.HHZ. 2011-08-26T13:07:55.66 0.1 undecidable manual Pg 266 18.4704 -0.002 100
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