Earthquake with magnitude of Md 2.4 on date 05-08-1989 and time 12:36:20 (Italy) in region 5 km W Accumoli (RI)

A magnitude Md 2.4 earthquake occured in region: 5 km W Accumoli (RI), on

  • 05-08-1989 10:36:20 (UTC)
  • 05-08-1989 12:36:20 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.69, 13.19 at 5 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
Accumoli RI 5 667 667
Cittareale RI 8 482 1149
Amatrice RI 10 2657 3806
Arquata del Tronto AP 13 1178 4984
Norcia PG 14 4957 9941
Cascia PG 15 3217 13158
Montereale AQ 19 2581 15739
Posta RI 20 694 16433
Borbona RI 20 617 17050

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km NW of L'Aquila (69753 inhabitants)
42 Km W of Teramo (54892 inhabitants)
47 Km E of Terni (111501 inhabitants)
50 Km SE of Foligno (57155 inhabitants)
80 Km SE of Perugia (166134 inhabitants)
81 Km W of Montesilvano (53738 inhabitants)
85 Km NE of Guidonia Montecelio (88673 inhabitants)
87 Km NE of Tivoli (56533 inhabitants)
87 Km W of Pescara (121014 inhabitants)
88 Km W of Chieti (51815 inhabitants)
94 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 2.4
ML-VAX 1.8
1989-08-05
10:36:20
42.69 13.19 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 96899
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-08-05 10:36:20 ± 0.28
Latitude 42.69 ± 0.01
Longitude 13.19 ± 0.03
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 96899

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) 2518.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 167
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00324
Epicentral distance of station farthest from the epicenter (degree) 0.00971
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 5
Type of magnitude Md
Reference to an origin 96899
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:30:39

ML:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 96899
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.ARV.Z. 1989-08-05T10:36:50.79 10.0 undecidable manual SG 347 0.0074 0.48 0.4
--.SDI.Z. 1989-08-05T10:36:44.00 10.0 undecidable manual PN 154 0.0097 1.54 0.1
--.ASS.Z. 1989-08-05T10:36:41.34 10.0 undecidable manual SG 313 0.0049 0.2 0.6
--.MNS.Z. 1989-08-05T10:36:39.22 10.0 undecidable manual SG 231 0.0043 0.03 0.6
--.ARV.Z. 1989-08-05T10:36:37.44 10.0 undecidable manual PG 347 0.0074 -0.39 1.1
--.AQU.Z. 1989-08-05T10:36:34.51 10.0 undecidable manual SG 155 0.0032 -0.56 0.3
--.ASS.Z. 1989-08-05T10:36:32.30 10.0 undecidable manual PG 313 0.0049 -0.24 1.5
--.MNS.Z. 1989-08-05T10:36:31.41 10.0 positive manual PG 231 0.0043 0 3.2
--.AQU.Z. 1989-08-05T10:36:28.76 10.0 undecidable manual PG 155 0.0032 -0.28 1.2
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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