Earthquake with magnitude of Md 2.6 on date 26-03-1985 and time 00:42:35 (UTC) in region 2 km NW Mercatello sul Metauro (PU)

A magnitude Md 2.6 earthquake occured in region: 2 km NW Mercatello sul Metauro (PU), on

  • 26-03-1985 00:42:35 (UTC)
  • 26-03-1985 01:42:35 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.66, 12.33 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
Mercatello sul Metauro PU 2 1378 1378
Borgo Pace PU 3 606 1984
Sestino AR 6 1355 3339
Sant'Angelo in Vado PU 7 4133 7472
Belforte all'Isauro PU 7 769 8241
Piandimeleto PU 10 2167 10408
Lunano PU 12 1527 11935
Frontino PU 12 293 12228
Badia Tedalda AR 12 1087 13315
Carpegna PU 13 1674 14989
Apecchio PU 14 1882 16871
Peglio PU 14 696 17567
Urbania PU 16 7099 24666
Pietrarubbia PU 16 660 25326
Piobbico PU 17 2029 27355
San Giustino PG 18 11297 38652
Pennabilli RN 18 2869 41521
Sansepolcro AR 18 15884 57405
Macerata Feltria PU 18 1990 59395
Sassocorvaro PU 19 3504 62899
Casteldelci RN 20 407 63306

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km NE of Arezzo (99543 inhabitants)
48 Km SW of Rimini (147750 inhabitants)
53 Km S of Cesena (96758 inhabitants)
55 Km SW of Pesaro (94582 inhabitants)
59 Km W of Fano (60888 inhabitants)
62 Km N of Perugia (166134 inhabitants)
66 Km SE of Forlì (117913 inhabitants)
78 Km SE of Faenza (58541 inhabitants)
84 Km NW of Foligno (57155 inhabitants)
85 Km S of Ravenna (159116 inhabitants)
87 Km E of Firenze (382808 inhabitants)
89 Km E of Siena (53903 inhabitants)
91 Km SE of Imola (69797 inhabitants)
93 Km E of Scandicci (50609 inhabitants)
96 Km W of Ancona (100861 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 2.6 1985-03-26
00:42:35
43.66 12.33 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 3649
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-03-26 00:42:35 ± 0.691
Latitude 43.66 ± 0.07
Longitude 12.33 ± 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 3649

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) 8520.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 207
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) 0.8
Epicentral distance of station closest to the epicenter (degree) 0.00243
Epicentral distance of station farthest from the epicenter (degree) 0.01166
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 4
Type of magnitude Md
Reference to an origin 3649
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:08:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.MNS.Z. 1985-03-26T00:43:17.50 10.0 undecidable manual SN 168 0.0117 0.77 0.4
--.MNS.Z. 1985-03-26T00:43:00.50 10.0 undecidable manual PN 168 0.0117 1.29 0.5
--.PO9.Z. 1985-03-26T00:42:58.00 10.0 undecidable manual PN 157 0.0105 0.53 1.2
--.AR1.Z. 1985-03-26T00:42:52.50 10.0 undecidable manual SG 109 0.0042 0.11 0.7
--.AS1.Z. 1985-03-26T00:42:46.80 10.0 undecidable manual PG 158 0.0057 -1.52 0.5
--.AR1.Z. 1985-03-26T00:42:44.50 10.0 undecidable manual PG 109 0.0042 -0.65 1.4
--.CH1.Z. 1985-03-26T00:42:44.50 10.0 undecidable manual SG 262 0.0024 -1.59 0.3
--.CH1.Z. 1985-03-26T00:42:42.00 10.0 positive manual PG 262 0.0024 0.48 3.1
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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