Earthquake with magnitude of Md 2.6 on date 27-04-1999 and time 08:28:18 (Italy) in region 2 km NE Capitignano (AQ)

A magnitude Md 2.6 earthquake occured in region: 2 km NE Capitignano (AQ), on

  • 27-04-1999 06:28:18 (UTC)
  • 27-04-1999 08:28:18 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.53, 13.33 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
Capitignano AQ 2 665 665
Campotosto AQ 5 542 1207
Montereale AQ 7 2581 3788
Barete AQ 10 737 4525
Pizzoli AQ 11 4326 8851
Amatrice RI 11 2657 11508
Cagnano Amiterno AQ 12 1369 12877
Crognaleto TE 13 1297 14174
Borbona RI 16 617 14791
Cittareale RI 17 482 15273
Fano Adriano TE 18 296 15569
Cortino TE 18 656 16225
Scoppito AQ 19 3727 19952
Posta RI 19 694 20646
Pietracamela TE 19 271 20917
Accumoli RI 19 667 21584

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km N of L'Aquila (69753 inhabitants)
34 Km W of Teramo (54892 inhabitants)
56 Km E of Terni (111501 inhabitants)
68 Km W of Montesilvano (53738 inhabitants)
69 Km SE of Foligno (57155 inhabitants)
72 Km W of Chieti (51815 inhabitants)
73 Km W of Pescara (121014 inhabitants)
77 Km NE of Tivoli (56533 inhabitants)
77 Km NE of Guidonia Montecelio (88673 inhabitants)
99 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 2.6 1999-04-27
06:28:18
42.53 13.33 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 364129
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1999-04-27 06:28:18 ± 0.132
Latitude 42.53 ± 0.01
Longitude 13.33 ± 0.02
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 364129

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) 1875.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 177
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
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) 0.00162
Epicentral distance of station farthest from the epicenter (degree) 0.00801
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

Md:2.6

Field Value
Value 2.6
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 364129
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:41:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.SDI.Z. 1999-04-27T06:28:49.50 10.0 undecidable manual SG 156 0.008 -0.11 0.5
--.SNTG.Z. 1999-04-27T06:28:45.31 10.0 undecidable manual SG 338 0.007 -0.38 0.3
--.ASS.Z. 1999-04-27T06:28:44.92 10.0 undecidable manual SG 317 0.0065 0.87 0
--.PQ9.Z. 1999-04-27T06:28:37.92 10.0 undecidable manual SG 173 0.0046 0.65 0.1
--.MNS.Z. 1999-04-27T06:28:36.30 10.0 undecidable manual SG 253 0.0045 -0.49 0.3
--.SDI.Z. 1999-04-27T06:28:36.50 10.0 undecidable manual PG 156 0.008 -0.12 1.3
--.SNTG.Z. 1999-04-27T06:28:34.72 10.0 undecidable manual PG 338 0.007 0.36 0.9
--.ASS.Z. 1999-04-27T06:28:33.52 10.0 undecidable manual PG 317 0.0065 0.1 1.5
--.NRCA.Z. 1999-04-27T06:28:31.77 10.0 undecidable manual SG 332 0.003 0.08 0.7
--.PQ9.Z. 1999-04-27T06:28:29.70 10.0 undecidable manual PG 173 0.0046 -0.43 0.8
--.MNS.Z. 1999-04-27T06:28:29.35 10.0 undecidable manual PG 253 0.0045 0.13 1.7
--.AQU.Z. 1999-04-27T06:28:27.28 10.0 undecidable manual SG 162 0.0016 0.48 0.3
--.NRCA.Z. 1999-04-27T06:28:25.90 10.0 negative manual PG 332 0.003 -0.38 2
--.AQU.Z. 1999-04-27T06:28:23.34 10.0 positive manual PG 162 0.0016 -0.11 3.5
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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