Earthquake with magnitude of Md 2.5 on date 28-01-1985 and time 09:45:53 (Italy) in region 1 km SE Capitignano (AQ)

A magnitude Md 2.5 earthquake occured in region: 1 km SE Capitignano (AQ), on

  • 28-01-1985 08:45:53 (UTC)
  • 28-01-1985 09:45:53 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.52, 13.31 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
Capitignano AQ 1 665 665
Montereale AQ 6 2581 3246
Campotosto AQ 7 542 3788
Barete AQ 8 737 4525
Pizzoli AQ 9 4326 8851
Cagnano Amiterno AQ 9 1369 10220
Amatrice RI 13 2657 12877
Crognaleto TE 14 1297 14174
Borbona RI 15 617 14791
Scoppito AQ 17 3727 18518
Cittareale RI 17 482 19000
Posta RI 18 694 19694
Fano Adriano TE 19 296 19990
L'Aquila AQ 19 69753 89743
Pietracamela TE 20 271 90014

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km NW of L'Aquila (69753 inhabitants)
36 Km W of Teramo (54892 inhabitants)
55 Km E of Terni (111501 inhabitants)
69 Km W of Montesilvano (53738 inhabitants)
70 Km SE of Foligno (57155 inhabitants)
73 Km W of Chieti (51815 inhabitants)
74 Km W of Pescara (121014 inhabitants)
74 Km NE of Tivoli (56533 inhabitants)
75 Km NE of Guidonia Montecelio (88673 inhabitants)
97 Km NE of Roma (2864731 inhabitants)
100 Km E of Viterbo (67173 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 2.5 1985-01-28
08:45:53
42.52 13.31 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 819
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-01-28 08:45:53 ± 0.359
Latitude 42.52 ± 0.02
Longitude 13.31 ± 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 819

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) 3751.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 170
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00154
Epicentral distance of station farthest from the epicenter (degree) 0.00915
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 819
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:06:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.AR1.Z. 1985-01-28T08:46:29.00 10.0 undecidable manual SG 344 0.0091 1.15 0.1
--.AR1.Z. 1985-01-28T08:46:12.50 10.0 undecidable manual PG 344 0.0091 -0.71 0.5
--.SD1.Z. 1985-01-28T08:46:10.50 10.0 undecidable manual PG 155 0.0079 -0.22 1.2
--.RMP.Z. 1985-01-28T08:46:10.00 10.0 undecidable manual PG 213 0.0074 0.19 1.2
--.MNS.Z. 1985-01-28T08:46:09.50 10.0 undecidable manual SG 254 0.0043 -1.16 0.1
--.AS1.Z. 1985-01-28T08:46:07.00 10.0 undecidable manual PG 318 0.0066 -0.86 0.5
--.PO9.Z. 1985-01-28T08:46:05.00 10.0 undecidable manual SG 282 0.0025 0.89 0.3
--.MNS.Z. 1985-01-28T08:46:02.80 10.0 undecidable manual PG 254 0.0043 -0.48 1.1
--.AQU.Z. 1985-01-28T08:46:01.00 10.0 undecidable manual SG 157 0.0015 0.31 0.8
--.PO9.Z. 1985-01-28T08:46:00.00 10.0 undecidable manual PG 282 0.0025 0.5 2.1
--.AQU.Z. 1985-01-28T08:45:57.50 10.0 negative manual PG 157 0.0015 -0.02 3.1
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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