Earthquake with magnitude of Md 2.3 on date 24-03-1985 and time 22:47:55 (Italy) in region 1 km W Comunanza (AP)

A magnitude Md 2.3 earthquake occured in region: 1 km W Comunanza (AP), on

  • 24-03-1985 21:47:55 (UTC)
  • 24-03-1985 22:47:55 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.96, 13.4 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
Comunanza AP 1 3166 3166
Amandola FM 4 3629 6795
Montefortino FM 5 1178 7973
Montefalcone Appennino FM 6 424 8397
Smerillo FM 7 365 8762
Force AP 8 1354 10116
Palmiano AP 8 196 10312
Montemonaco AP 9 604 10916
Monte San Martino MC 9 765 11681
Santa Vittoria in Matenano FM 11 1330 13011
Penna San Giovanni MC 11 1108 14119
Venarotta AP 12 2066 16185
Sarnano MC 12 3264 19449
Roccafluvione AP 12 2010 21459
Montelparo FM 13 778 22237
Gualdo MC 13 815 23052
Rotella AP 13 906 23958
Montegallo AP 14 523 24481
Bolognola MC 15 142 24623
Monteleone di Fermo FM 15 395 25018
Montedinove AP 16 488 25506
Servigliano FM 16 2336 27842
Sant'Angelo in Pontano MC 16 1436 29278
Monte Rinaldo FM 17 379 29657
Montalto delle Marche AP 17 2122 31779
Monsampietro Morico FM 18 659 32438
Falerone FM 18 3337 35775
San Ginesio MC 18 3498 39273
Castignano AP 18 2796 42069
Ascoli Piceno AP 19 49407 91476
Belmonte Piceno FM 19 646 92122
Ortezzano FM 19 774 92896
Montottone FM 19 979 93875
Monte Vidon Corrado FM 20 731 94606
Acquacanina MC 20 121 94727

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km NW of Teramo (54892 inhabitants)
56 Km E of Foligno (57155 inhabitants)
67 Km N of L'Aquila (69753 inhabitants)
74 Km S of Ancona (100861 inhabitants)
76 Km NE of Terni (111501 inhabitants)
79 Km NW of Montesilvano (53738 inhabitants)
84 Km E of Perugia (166134 inhabitants)
86 Km NW of Pescara (121014 inhabitants)
92 Km NW of Chieti (51815 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 1985-03-24
21:47:55
42.96 13.4 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 3599
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-03-24 21:47:55 ± 1.251
Latitude 42.96 ± 0.04
Longitude 13.40 ± 0.08
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 3599

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) 8015.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 300
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) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00453
Epicentral distance of station farthest from the epicenter (degree) 0.00696
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:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 3599
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:08:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.MNS.Z. 1985-03-24T21:48:21.50 10.0 undecidable manual SG 222 0.007 -1.26 0.1
--.AS1.Z. 1985-03-24T21:48:16.00 10.0 undecidable manual SG 280 0.0049 0.41 0.7
--.PO9.Z. 1985-03-24T21:48:15.00 10.0 undecidable manual SG 220 0.0045 0.89 0.3
--.MNS.Z. 1985-03-24T21:48:11.00 10.0 undecidable manual PG 222 0.007 -0.39 1.6
--.AS1.Z. 1985-03-24T21:48:07.00 10.0 undecidable manual PG 280 0.0049 -0.25 2
--.PO9.Z. 1985-03-24T21:48:07.00 10.0 undecidable manual PG 220 0.0045 0.6 1.3
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
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