Earthquake with magnitude of Md 2.6 on date 01-06-1985 and time 17:27:11 (UTC) in region 2 km NW Santo Stefano di Sessanio (AQ)

A magnitude Md 2.6 earthquake occured in region: 2 km NW Santo Stefano di Sessanio (AQ), on

  • 01-06-1985 17:27:11 (UTC)
  • 01-06-1985 19:27:11 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.36, 13.64 at 9 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
Santo Stefano di Sessanio AQ 2 111 111
Barisciano AQ 5 1828 1939
Calascio AQ 6 137 2076
Castelvecchio Calvisio AQ 7 153 2229
Castel del Monte AQ 8 413 2642
Carapelle Calvisio AQ 8 87 2729
San Pio delle Camere AQ 8 661 3390
Poggio Picenze AQ 9 1136 4526
Prata d'Ansidonia AQ 9 496 5022
San Demetrio ne' Vestini AQ 10 1854 6876
Ofena AQ 11 506 7382
Sant'Eusanio Forconese AQ 12 394 7776
Villa Santa Lucia degli Abruzzi AQ 12 123 7899
Caporciano AQ 12 230 8129
Fagnano Alto AQ 13 418 8547
Villa Sant'Angelo AQ 13 424 8971
Fossa AQ 14 721 9692
Fontecchio AQ 14 369 10061
Capestrano AQ 15 884 10945
Ocre AQ 16 1167 12112
Navelli AQ 16 554 12666
Castelli TE 16 1159 13825
Isola del Gran Sasso d'Italia TE 16 4773 18598
Tione degli Abruzzi AQ 17 310 18908
Farindola PE 18 1518 20426
Rocca di Cambio AQ 18 533 20959
Villa Celiera PE 19 681 21640
Carpineto della Nora PE 19 662 22302
Brittoli PE 19 290 22592
Rocca di Mezzo AQ 19 1526 24118
Pietracamela TE 19 271 24389
L'Aquila AQ 19 69753 94142
Collepietro AQ 20 237 94379

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km E of L'Aquila (69753 inhabitants)
34 Km S of Teramo (54892 inhabitants)
44 Km W of Chieti (51815 inhabitants)
46 Km W of Montesilvano (53738 inhabitants)
49 Km W of Pescara (121014 inhabitants)
82 Km NE of Tivoli (56533 inhabitants)
84 Km E of Terni (111501 inhabitants)
85 Km E of Guidonia Montecelio (88673 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 1985-06-01
17:27:11
42.36 13.64 9 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 7789
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-06-01 17:27:11 ± 0.678
Latitude 42.36 ± 0.02
Longitude 13.64 ± 0.04
Depth (km) 9 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 7789

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) 4486.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 235
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
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) 0.00818
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:2.6

Field Value
Value 2.6
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 7789
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:11:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.SD1.Z. 1985-06-01T17:27:35.00 10.0 undecidable manual SG 168 0.0059 0.41 0.8
--.PO9.Z. 1985-06-01T17:27:31.00 10.0 undecidable manual SG 292 0.0049 -0.09 0.8
--.RDP.Z. 1985-06-01T17:27:29.50 10.0 undecidable manual PG 228 0.0082 0.23 1.4
--.SD1.Z. 1985-06-01T17:27:24.00 10.0 undecidable manual PG 168 0.0059 -0.72 0.5
--.PO9.Z. 1985-06-01T17:27:22.50 10.0 undecidable manual PG 292 0.0049 -0.2 1.9
--.AQU.Z. 1985-06-01T17:27:18.00 10.0 undecidable manual SG 267 0.0015 -0.63 0.3
--.AQU.Z. 1985-06-01T17:27:16.00 10.0 undecidable manual PG 267 0.0015 0.49 1.2
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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