Earthquake with magnitude of Md 3.0 on date 21-10-1996 and time 07:13:16 (Italy) in region 4 km NE Montereale (AQ)

A magnitude Md 3.0 earthquake occured in region: 4 km NE Montereale (AQ), on

  • 21-10-1996 05:13:16 (UTC)
  • 21-10-1996 07:13:16 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.55, 13.27 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
Montereale AQ 4 2581 2581
Capitignano AQ 5 665 3246
Campotosto AQ 8 542 3788
Amatrice RI 9 2657 6445
Cagnano Amiterno AQ 11 1369 7814
Barete AQ 11 737 8551
Cittareale RI 12 482 9033
Borbona RI 12 617 9650
Pizzoli AQ 13 4326 13976
Posta RI 15 694 14670
Accumoli RI 16 667 15337
Crognaleto TE 17 1297 16634

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km NW of L'Aquila (69753 inhabitants)
38 Km W of Teramo (54892 inhabitants)
51 Km E of Terni (111501 inhabitants)
64 Km SE of Foligno (57155 inhabitants)
72 Km W of Montesilvano (53738 inhabitants)
76 Km NE of Guidonia Montecelio (88673 inhabitants)
76 Km NE of Tivoli (56533 inhabitants)
77 Km W of Chieti (51815 inhabitants)
78 Km W of Pescara (121014 inhabitants)
95 Km SE of Perugia (166134 inhabitants)
97 Km E of Viterbo (67173 inhabitants)
98 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 3.0
ML-VAX 2.2
1996-10-21
05:13:16
42.55 13.27 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 255139
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1996-10-21 05:13:16 ± 0.229
Latitude 42.55 ± 0.03
Longitude 13.27 ± 0.08
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 255139

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) 7264.6
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 15
Number of defining phases 15
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) 0.00194
Epicentral distance of station farthest from the epicenter (degree) 0.0221
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitudes information

Md:3

Field Value
Value 3
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 255139
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:01:25

ML:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 255139
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
--.PGD.Z. 1996-10-21T05:14:11.11 10.0 undecidable manual SN 320 0.0156 1.29 0.1
--.BDI.Z. 1996-10-21T05:14:00.26 10.0 undecidable manual PN! 308 0.0221 2.97 0
--.ARV.Z. 1996-10-21T05:13:51.87 10.0 undecidable manual SG 346 0.0087 1.04 0.3
--.SDI.Z. 1996-10-21T05:13:49.83 10.0 undecidable manual SG 154 0.0083 0.29 0.7
--.PGD.Z. 1996-10-21T05:13:48.26 10.0 undecidable manual PN 320 0.0156 0.89 0.6
--.RFI.Z. 1996-10-21T05:13:42.68 10.0 undecidable manual PN 156 0.0122 0.48 1.3
--.ASS.Z. 1996-10-21T05:13:40.80 10.0 undecidable manual SG 318 0.0061 -0.61 0.5
--.FB9.Z. 1996-10-21T05:13:39.84 10.0 undecidable manual PN 342 0.0107 -0.06 1.7
--.PQ9.Z. 1996-10-21T05:13:38.49 10.0 undecidable manual SG 169 0.0049 1.6 0.1
--.ARV.Z. 1996-10-21T05:13:35.92 10.0 undecidable manual PG 346 0.0087 -0.48 1.5
--.SDI.Z. 1996-10-21T05:13:34.41 10.0 undecidable manual PG 154 0.0083 -1.24 0.4
--.ASS.Z. 1996-10-21T05:13:30.55 10.0 positive manual PG 318 0.0061 -0.41 3.1
--.PQ9.Z. 1996-10-21T05:13:27.42 10.0 undecidable manual PG 169 0.0049 -0.93 0.8
--.AQU.Z. 1996-10-21T05:13:25.34 10.0 undecidable manual SG 154 0.0019 -0.07 0.7
--.AQU.Z. 1996-10-21T05:13:22.90 10.0 positive manual PG 154 0.0019 0.37 3.2
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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