Earthquake with magnitude of Md 2.3 on date 13-03-1985 and time 03:53:54 (Italy) in region 5 km E Borbona (RI)

A magnitude Md 2.3 earthquake occured in region: 5 km E Borbona (RI), on

  • 13-03-1985 02:53:54 (UTC)
  • 13-03-1985 03:53:54 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.53, 13.18 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
Borbona RI 5 617 617
Montereale AQ 5 2581 3198
Posta RI 7 694 3892
Cagnano Amiterno AQ 9 1369 5261
Cittareale RI 10 482 5743
Capitignano AQ 10 665 6408
Barete AQ 12 737 7145
Amatrice RI 14 2657 9802
Micigliano RI 14 127 9929
Pizzoli AQ 14 4326 14255
Antrodoco RI 15 2588 16843
Campotosto AQ 16 542 17385
Borgo Velino RI 18 972 18357
Leonessa RI 18 2435 20792
Accumoli RI 19 667 21459
Scoppito AQ 19 3727 25186
Castel Sant'Angelo RI 20 1308 26494

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km NW of L'Aquila (69753 inhabitants)
44 Km E of Terni (111501 inhabitants)
45 Km W of Teramo (54892 inhabitants)
61 Km SE of Foligno (57155 inhabitants)
70 Km NE of Guidonia Montecelio (88673 inhabitants)
71 Km NE of Tivoli (56533 inhabitants)
79 Km W of Montesilvano (53738 inhabitants)
83 Km W of Chieti (51815 inhabitants)
85 Km W of Pescara (121014 inhabitants)
89 Km E of Viterbo (67173 inhabitants)
91 Km SE of Perugia (166134 inhabitants)
92 Km NE of Roma (2864731 inhabitants)
100 Km NE of Velletri (53303 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 2.3 1985-03-13
02:53:54
42.53 13.19 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 3219
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-03-13 02:53:54 ± 0.854
Latitude 42.53 ± 0.06
Longitude 13.19 ± 0.05
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 3219

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) 8084.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 215
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) 1
Epicentral distance of station closest to the epicenter (degree) 0.00162
Epicentral distance of station farthest from the epicenter (degree) 0.0085
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 3219
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:08:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.SD1.Z. 1985-03-13T02:54:28.50 10.0 undecidable manual SG 150 0.0085 1.51 0.3
--.SD1.Z. 1985-03-13T02:54:15.00 10.0 undecidable manual PG 150 0.0085 1.66 0.6
--.MNS.Z. 1985-03-13T02:54:09.00 10.0 undecidable manual SG 248 0.0036 -0.48 0.8
--.AQU.Z. 1985-03-13T02:54:03.50 10.0 undecidable manual SG 138 0.0021 -0.86 1.1
--.PO9.Z. 1985-03-13T02:54:03.50 10.0 undecidable manual SG 282 0.0016 0.99 0.7
--.MNS.Z. 1985-03-13T02:54:02.00 10.0 undecidable manual PG 248 0.0036 -1.23 1.4
--.PO9.Z. 1985-03-13T02:53:59.50 10.0 undecidable manual PG 282 0.0016 0.29 2.2
--.AQU.Z. 1985-03-13T02:53:58.70 10.0 undecidable manual PG 138 0.0021 -1.58 1
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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