Earthquake with magnitude of Md 2.4 on date 31-05-1985 and time 01:13:05 (UTC) in region Costa Marchigiana Pesarese (Pesaro Urbino)

A magnitude Md 2.4 earthquake occured in region: Costa Marchigiana Pesarese (Pesaro Urbino), on

  • 31-05-1985 01:13:05 (UTC)
  • 31-05-1985 03:13:05 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.83, 13.17 at 10 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
Mondolfo PU 10 14277 14277
San Costanzo PU 11 4786 19063
Fano PU 12 60888 79951
Senigallia AN 13 45027 124978
Trecastelli AN 18 7625 132603
Monte Porzio PU 18 2836 135439
Piagge PU 19 1022 136461
San Giorgio di Pesaro PU 19 1388 137849

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km E of Fano (60888 inhabitants)
23 Km E of Pesaro (94582 inhabitants)
37 Km NW of Ancona (100861 inhabitants)
55 Km E of Rimini (147750 inhabitants)
82 Km E of Cesena (96758 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
Rev 1000 Md 2.4 1985-05-31
01:13:05
43.83 13.17 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 7669
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-05-31 01:13:05 ± 0.614
Latitude 43.83 ± 0.03
Longitude 13.17 ± 0.03
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 7669

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 4359
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 233
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00324
Epicentral distance of station farthest from the epicenter (degree) 0.01133
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 7669
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:11:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.PO9.Z. 1985-05-31T01:13:29.90 10.0 undecidable manual PN 187 0.0113 1.42 0.2
--.CM2.Z. 1985-05-31T01:13:28.20 10.0 undecidable manual SG 181 0.0057 0.85 0.5
--.CH1.Z. 1985-05-31T01:13:23.20 10.0 undecidable manual PG 257 0.0081 0.22 1.4
--.AS1.Z. 1985-05-31T01:13:21.50 10.0 undecidable manual PG 206 0.0076 -0.47 1.2
--.AM1.Z. 1985-05-31T01:13:20.60 10.0 undecidable manual SG 130 0.0037 0.2 1
--.AR1.Z. 1985-05-31T01:13:18.00 10.0 undecidable manual SG 206 0.0032 -0.77 0.4
--.CM2.Z. 1985-05-31T01:13:17.80 10.0 undecidable manual PG 181 0.0057 -0.15 1.7
--.AM1.Z. 1985-05-31T01:13:13.30 10.0 undecidable manual PG 130 0.0037 -0.64 1.1
--.AR1.Z. 1985-05-31T01:13:12.50 10.0 undecidable manual PG 206 0.0032 -0.5 1.3
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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