Earthquake with magnitude of Md 2.1 on date 21-10-1996 and time 00:07:05 (Italy) in region 5 km NW Cagnano Amiterno (AQ)

A magnitude Md 2.1 earthquake occured in region: 5 km NW Cagnano Amiterno (AQ), on

  • 20-10-1996 22:07:05 (UTC)
  • 21-10-1996 00:07:05 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.5, 13.2 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
Cagnano Amiterno AQ 5 1369 1369
Montereale AQ 5 2581 3950
Borbona RI 6 617 4567
Barete AQ 9 737 5304
Posta RI 9 694 5998
Capitignano AQ 9 665 6663
Pizzoli AQ 11 4326 10989
Micigliano RI 13 127 11116
Antrodoco RI 13 2588 13704
Cittareale RI 14 482 14186
Scoppito AQ 15 3727 17913
Borgo Velino RI 15 972 18885
Campotosto AQ 16 542 19427
Amatrice RI 17 2657 22084
Castel Sant'Angelo RI 18 1308 23392

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km NW of L'Aquila (69753 inhabitants)
45 Km W of Teramo (54892 inhabitants)
46 Km E of Terni (111501 inhabitants)
65 Km SE of Foligno (57155 inhabitants)
67 Km NE of Guidonia Montecelio (88673 inhabitants)
68 Km NE of Tivoli (56533 inhabitants)
78 Km W of Montesilvano (53738 inhabitants)
81 Km W of Chieti (51815 inhabitants)
84 Km W of Pescara (121014 inhabitants)
89 Km NE of Roma (2864731 inhabitants)
90 Km E of Viterbo (67173 inhabitants)
95 Km SE of Perugia (166134 inhabitants)
97 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 2.1 1996-10-20
22:07:05
42.5 13.2 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 255079
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1996-10-20 22:07:05 ± 0.415
Latitude 42.50 ± 0.03
Longitude 13.20 ± 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 255079

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) 3912.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 168
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) 0.7
Epicentral distance of station closest to the epicenter (degree) 0.00186
Epicentral distance of station farthest from the epicenter (degree) 0.00615
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:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 255079
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:01:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.ASS.Z. 1996-10-20T22:07:28.78 10.0 undecidable manual SG 325 0.0062 -1.05 0.2
--.PQ9.Z. 1996-10-20T22:07:24.33 10.0 undecidable manual SG 162 0.0045 0.66 0.6
--.ASS.Z. 1996-10-20T22:07:20.82 10.0 undecidable manual PG 325 0.0062 1.18 0.8
--.MNS.Z. 1996-10-20T22:07:20.61 10.0 undecidable manual SG 253 0.0036 0.23 0.9
--.PQ9.Z. 1996-10-20T22:07:16.63 10.0 undecidable manual PG 162 0.0045 0.55 1.7
--.MNS.Z. 1996-10-20T22:07:13.36 10.0 undecidable manual PG 253 0.0036 -0.83 1.4
--.AQU.Z. 1996-10-20T22:07:13.18 10.0 undecidable manual SG 133 0.0019 -1.17 0.3
--.AQU.Z. 1996-10-20T22:07:10.41 10.0 undecidable manual PG 133 0.0019 -0.3 2.2
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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