Earthquake with magnitude of Md 2.6 on date 18-05-1985 and time 05:44:40 (Italy) in region Adriatico Centrale (MARE)

A magnitude Md 2.6 earthquake occured in region: Adriatico Centrale (MARE), on

  • 18-05-1985 03:44:40 (UTC)
  • 18-05-1985 05:44:40 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.009, 13.669 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km N of Ancona (100861 inhabitants)
55 Km E of Fano (60888 inhabitants)
61 Km E of Pesaro (94582 inhabitants)
88 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 2.6 1985-05-18
03:44:40
44.009 13.669 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 6409
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-05-18 03:44:40 ± 0.768
Latitude 44.0090 ± 0.0294
Longitude 13.6690 ± 0.0704
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 6409

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) 6508.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 292
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00413
Epicentral distance of station farthest from the epicenter (degree) 0.01368
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:2.6

Field Value
Value 2.6
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 6409
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:10:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.AS1.Z. 1985-05-18T03:45:19.00 10.0 undecidable manual SN 218 0.0108 -0.07 0.8
--.CM2.Z. 1985-05-18T03:45:11.20 10.0 undecidable manual SG 205 0.0081 0.29 1.2
--.PO9.Z. 1985-05-18T03:45:07.90 10.0 undecidable manual PN 200 0.0137 0.79 0.9
--.CH1.Z. 1985-05-18T03:45:04.50 10.0 undecidable manual PN 253 0.0117 0.54 1.4
--.AS1.Z. 1985-05-18T03:45:01.50 10.0 undecidable manual PN? 218 0.0108 -1.09 0.3
--.AM1.Z. 1985-05-18T03:44:57.40 10.0 undecidable manual SG 186 0.0041 0.61 0.9
--.CM2.Z. 1985-05-18T03:44:56.60 10.0 undecidable manual PG 205 0.0081 -1.28 0.5
--.AM1.Z. 1985-05-18T03:44:49.60 10.0 undecidable manual PG 186 0.0041 -0.12 2.1
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