Earthquake with magnitude of Md 4.0 on date 20-10-1996 and time 21:06:56 (Italy) in region 6 km NE Borbona (RI)

A magnitude Md 4.0 earthquake occured in region: 6 km NE Borbona (RI), on

  • 20-10-1996 19:06:56 (UTC)
  • 20-10-1996 21:06:56 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.56, 13.16 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
Borbona RI 6 617 617
Cittareale RI 7 482 1099
Posta RI 7 694 1793
Montereale AQ 8 2581 4374
Capitignano AQ 12 665 5039
Cagnano Amiterno AQ 12 1369 6408
Amatrice RI 13 2657 9065
Micigliano RI 15 127 9192
Barete AQ 15 737 9929
Leonessa RI 16 2435 12364
Accumoli RI 17 667 13031
Campotosto AQ 17 542 13573
Antrodoco RI 17 2588 16161
Pizzoli AQ 17 4326 20487
Borgo Velino RI 19 972 21459

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km NW of L'Aquila (69753 inhabitants)
42 Km E of Terni (111501 inhabitants)
46 Km W of Teramo (54892 inhabitants)
58 Km SE of Foligno (57155 inhabitants)
72 Km NE of Guidonia Montecelio (88673 inhabitants)
73 Km NE of Tivoli (56533 inhabitants)
81 Km W of Montesilvano (53738 inhabitants)
86 Km W of Chieti (51815 inhabitants)
87 Km W of Pescara (121014 inhabitants)
88 Km SE of Perugia (166134 inhabitants)
88 Km E of Viterbo (67173 inhabitants)
93 Km NE of Roma (2864731 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 4.0
ML-VAX 4.1
1996-10-20
19:06:56
42.56 13.16 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 255019
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1996-10-20 19:06:56 ± 0.107
Latitude 42.56 ± 0.01
Longitude 13.16 ± 0.02
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 255019

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) 1662.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 116
Number of associated phases, regardless of their use for origin computation 62
Number of defining phases 62
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) 0.00243
Epicentral distance of station farthest from the epicenter (degree) 0.04768
Number of stations at which the event was observed 47
Number of stations from which data was used for origin computation 47
Magnitudes information

Md:4

Field Value
Value 4
Uncertainty
Num. used stations 6
Type of magnitude Md
Reference to an origin 255019
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:01:18

ML:4.1

Field Value
Value 4.1
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 255019
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
--.ORO.Z. 1996-10-20T19:09:02.78 10.0 undecidable manual SN 311 0.0433 -0.32 0.4
--.VAI.Z. 1996-10-20T19:08:56.71 10.0 undecidable manual SN 318 0.041 -0.28 0.5
--.BR9.Z. 1996-10-20T19:08:53.13 10.0 undecidable manual SN 334 0.0395 0.25 0.5
--.CGL.Z. 1996-10-20T19:08:51.26 10.0 undecidable manual SN 223 0.0389 -0.13 0.5
--.FVI.Z. 1996-10-20T19:08:46.47 10.0 undecidable manual SN 356 0.0363 1.89 0
--.MDI.Z. 1996-10-20T19:08:45.30 10.0 undecidable manual SN 323 0.0365 0.32 0.5
--.GE9.Z. 1996-10-20T19:08:36.74 10.0 undecidable manual SN 359 0.0334 -0.16 0.5
--.SAL.Z. 1996-10-20T19:08:34.44 10.0 undecidable manual SN 329 0.0322 0.66 0.4
--.CTI.Z. 1996-10-20T19:08:34.90 10.0 undecidable manual SN 343 0.0328 -0.39 0.5
--.BNI.Z. 1996-10-20T19:08:16.65 10.0 undecidable manual PN 300 0.0477 0.43 1
--.ORO.Z. 1996-10-20T19:08:09.34 10.0 undecidable manual PN 311 0.0433 -0.31 1.1
--.VAI.Z. 1996-10-20T19:08:06.26 10.0 undecidable manual PN 318 0.041 0.13 1.2
--.BR9.Z. 1996-10-20T19:08:04.71 10.0 undecidable manual PN 334 0.0395 0.95 0.7
--.CGL.Z. 1996-10-20T19:08:04.66 10.0 undecidable manual PN 223 0.0389 1.77 0.2
--.LCI.Z. 1996-10-20T19:08:02.58 10.0 undecidable manual PN 119 0.0389 -0.25 1.2
--.MDI.Z. 1996-10-20T19:07:59.27 10.0 undecidable manual PN 323 0.0365 0.08 1.3
--.CKI.Z. 1996-10-20T19:07:59.14 10.0 undecidable manual PN 299 0.0359 0.75 0.9
--.FVI.Z. 1996-10-20T19:07:58.40 10.0 undecidable manual PN 356 0.0363 -0.56 1.1
--.TDS.Z. 1996-10-20T19:07:55.72 10.0 undecidable manual PN 139 0.0338 0.67 1
--.GE9.Z. 1996-10-20T19:07:53.37 10.0 positive manual PN 359 0.0334 -1.16 1.3
--.CTI.Z. 1996-10-20T19:07:53.89 10.0 positive manual PN 343 0.0328 0.29 2.6
--.SAL.Z. 1996-10-20T19:07:53.14 10.0 undecidable manual PN 329 0.0322 0.41 1.2
--.ORI.Z. 1996-10-20T19:07:52.22 10.0 undecidable manual PN 134 0.0316 0.49 1.2
--.BOB.Z. 1996-10-20T19:07:51.56 10.0 undecidable manual PN 310 0.0312 0.36 1.3
--.LT9.Z. 1996-10-20T19:07:49.30 10.0 undecidable manual PN 124 0.0302 -0.57 1.2
--.BRT.Z. 1996-10-20T19:07:49.82 10.0 undecidable manual PN 118 0.0307 -0.56 1.2
--.MGR.Z. 1996-10-20T19:07:46.18 10.0 undecidable manual PN 142 0.027 1.34 0.5
--.RSM.Z. 1996-10-20T19:07:43.36 10.0 undecidable manual SN 339 0.0131 0.07 0.6
--.SL9.Z. 1996-10-20T19:07:42.98 10.0 undecidable manual PN 138 0.0256 0.38 1.5
--.EB9.Z. 1996-10-20T19:07:42.36 10.0 undecidable manual PN 314 0.0245 1.45 0.4
--.CL9.Z. 1996-10-20T19:07:40.10 10.0 undecidable manual PN 334 0.023 1.38 0.5
--.GU9.Z. 1996-10-20T19:07:39.72 10.0 undecidable manual PN 314 0.0232 0.71 1.2
--.ZC9.Z. 1996-10-20T19:07:38.35 10.0 undecidable manual PN 319 0.0215 2.02 0.1
--.MU9.Z. 1996-10-20T19:07:38.81 10.0 undecidable manual PN 135 0.0224 1.02 0.8
--.SGO.Z. 1996-10-20T19:07:38.53 10.0 undecidable manual PN 140 0.023 -0.13 1.6
--.CA9.Z. 1996-10-20T19:07:37.11 10.0 undecidable manual PN 133 0.0213 1.04 0.8
--.BDI.Z. 1996-10-20T19:07:36.11 10.0 undecidable manual PN 309 0.0215 -0.27 1.6
--.PII.Z. 1996-10-20T19:07:35.00 10.0 undecidable manual PN 302 0.0202 0.66 1.3
--.FG4.Z. 1996-10-20T19:07:34.78 10.0 undecidable manual PN 128 0.0203 0.27 1.6
--.CI9.Z. 1996-10-20T19:07:32.85 10.0 undecidable manual PN 140 0.0197 -0.73 1.1
--.MRB1.Z. 1996-10-20T19:07:31.72 10.0 undecidable manual PN 136 0.0176 1.23 0.6
--.FG5.Z. 1996-10-20T19:07:31.50 10.0 undecidable manual PN 128 0.0181 -0.16 1.6
--.BS9.Z. 1996-10-20T19:07:30.39 10.0 undecidable manual PN 335 0.017 0.88 1
--.DSB1.Z. 1996-10-20T19:07:29.68 10.0 undecidable manual PN 132 0.0167 0.76 1.1
--.RMP.Z. 1996-10-20T19:07:26.26 10.0 undecidable manual SG 204 0.0074 0.35 0.7
--.PGD.Z. 1996-10-20T19:07:25.62 10.0 negative manual PN 322 0.0151 -0.98 1.8
--.SFI.Z. 1996-10-20T19:07:25.66 10.0 undecidable manual PN 325 0.0148 -0.49 1.4
--.RSM.Z. 1996-10-20T19:07:24.24 10.0 undecidable manual PN 339 0.0131 0.66 1.2
--.FG2.Z. 1996-10-20T19:07:24.90 10.0 undecidable manual PN 116 0.0149 -1.38 0.5
--.RFI.Z. 1996-10-20T19:07:21.97 10.0 undecidable manual PN 153 0.0125 -0.71 1.1
--.ASS.Z. 1996-10-20T19:07:19.47 10.0 undecidable manual SG 323 0.0056 -0.18 0.6
--.PQ9.Z. 1996-10-20T19:07:18.36 10.0 undecidable manual SG 162 0.005 0.7 0.5
--.FB9.Z. 1996-10-20T19:07:17.79 10.0 positive manual PN 346 0.0104 -1.71 0.6
--.ARV.Z. 1996-10-20T19:07:15.69 10.0 undecidable manual PG 350 0.0085 -0.27 1.6
--.SDI.Z. 1996-10-20T19:07:15.72 10.0 undecidable manual PG 150 0.0087 -0.66 1.2
--.RMP.Z. 1996-10-20T19:07:13.42 10.0 undecidable manual PG 204 0.0074 -0.12 1.6
--.MNS.Z. 1996-10-20T19:07:11.91 10.0 undecidable manual SG 244 0.0036 -0.1 0.6
--.ASS.Z. 1996-10-20T19:07:08.43 10.0 positive manual PG 323 0.0056 -1.5 0.8
--.PQ9.Z. 1996-10-20T19:07:07.76 10.0 undecidable manual PG 162 0.005 -1.02 0.8
--.AQU.Z. 1996-10-20T19:07:05.91 10.0 undecidable manual SG 139 0.0024 -1.3 0.2
--.MNS.Z. 1996-10-20T19:07:04.87 10.0 positive manual PG 244 0.0036 -0.65 2.1
--.AQU.Z. 1996-10-20T19:07:02.69 10.0 negative manual PG 139 0.0024 -0.05 3.3
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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