Earthquake with magnitude of Md 2.4 on date 02-10-1985 and time 02:11:08 (Italy) in region 3 km NE Citerna (PG)

A magnitude Md 2.4 earthquake occured in region: 3 km NE Citerna (PG), on

  • 02-10-1985 01:11:08 (UTC)
  • 02-10-1985 02:11:08 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.5150, 12.1420 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
Citerna PG 3 3531 3531
Monterchi AR 4 1757 5288
San Giustino PG 5 11297 16585
Sansepolcro AR 6 15884 32469
Anghiari AR 7 5638 38107
Monte Santa Maria Tiberina PG 9 1183 39290
CittĂ  di Castello PG 10 39913 79203
Pieve Santo Stefano AR 19 3183 82386
Caprese Michelangelo AR 19 1426 83812

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km E of Arezzo (99543 inhabitants)
50 Km NW of Perugia (166134 inhabitants)
69 Km E of Siena (53903 inhabitants)
70 Km SW of Rimini (147750 inhabitants)
70 Km S of Cesena (96758 inhabitants)
76 Km SW of Pesaro (94582 inhabitants)
77 Km E of Firenze (382808 inhabitants)
77 Km NW of Foligno (57155 inhabitants)
79 Km S of Forlì (117913 inhabitants)
80 Km W of Fano (60888 inhabitants)
82 Km E of Scandicci (50609 inhabitants)
88 Km S of Faenza (58541 inhabitants)
93 Km E of Prato (191150 inhabitants)
99 Km SE 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 2.4 1985-10-02
01:11:08
43.515 12.142 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 14029
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-10-02 01:11:08 ± 2.482
Latitude 43.5150 ± 0.0896
Longitude 12.1420 ± 0.1567
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 14029

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) 16086.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 295
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) 1
Epicentral distance of station closest to the epicenter (degree) 0.00405
Epicentral distance of station farthest from the epicenter (degree) 0.00526
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitude information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 14029
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:17:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.AR1.Z. 1985-10-02T01:11:30.00 10.0 undecidable manual SG 91 0.5772 1.13 0.5
--.AS1.Z. 1985-10-02T01:11:27.00 10.0 undecidable manual SG 140 0.5883 -2.03 0.2
--.PRG.Z. 1985-10-02T01:11:26.50 10.0 undecidable manual SG 156 0.444 1.71 0.5
--.AR1.Z. 1985-10-02T01:11:20.50 10.0 undecidable manual PG 91 0.5772 0.3 1.6
--.AS1.Z. 1985-10-02T01:11:18.00 10.0 undecidable manual PG 140 0.5883 -2.29 0.4
--.PRG.Z. 1985-10-02T01:11:18.50 10.0 undecidable manual PG 156 0.444 0.66 2.9
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