Earthquake with magnitude of Md 2.4 on date 28-09-1999 and time 00:21:15 (Italy) in region 2 km W Cagnano Amiterno (AQ)

A magnitude Md 2.4 earthquake occured in region: 2 km W Cagnano Amiterno (AQ), on

  • 27-09-1999 22:21:15 (UTC)
  • 28-09-1999 00:21:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.46, 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 2 1369 1369
Barete AQ 7 737 2106
Montereale AQ 8 2581 4687
Borbona RI 8 617 5304
Pizzoli AQ 8 4326 9630
Capitignano AQ 10 665 10295
Scoppito AQ 11 3727 14022
Antrodoco RI 11 2588 16610
Posta RI 11 694 17304
Micigliano RI 12 127 17431
Borgo Velino RI 13 972 18403
Castel Sant'Angelo RI 16 1308 19711
Campotosto AQ 17 542 20253
Cittareale RI 18 482 20735
Amatrice RI 20 2657 23392

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km NW of L'Aquila (69753 inhabitants)
47 Km W of Teramo (54892 inhabitants)
47 Km E of Terni (111501 inhabitants)
65 Km NE of Guidonia Montecelio (88673 inhabitants)
65 Km NE of Tivoli (56533 inhabitants)
68 Km SE of Foligno (57155 inhabitants)
78 Km W of Montesilvano (53738 inhabitants)
80 Km W of Chieti (51815 inhabitants)
83 Km W of Pescara (121014 inhabitants)
87 Km NE of Roma (2864731 inhabitants)
90 Km E of Viterbo (67173 inhabitants)
93 Km NE of Velletri (53303 inhabitants)
98 Km SE of Perugia (166134 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 1999-09-27
22:21:15
42.46 13.2 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 374309
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1999-09-27 22:21:15 ± 0.22
Latitude 42.46 ± 0.02
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 374309

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) 2852.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 136
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) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00162
Epicentral distance of station farthest from the epicenter (degree) 0.00785
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:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 374309
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:51:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.SDI.Z. 1999-09-27T22:21:45.99 10.0 undecidable manual SG 149 0.0079 0.49 0.4
--.SNTG.Z. 1999-09-27T22:21:42.49 10.0 undecidable manual SG 346 0.0073 -1.04 0.2
--.ASS.Z. 1999-09-27T22:21:40.10 10.0 undecidable manual SG 326 0.0065 -0.56 0.4
--.SNTG.Z. 1999-09-27T22:21:33.19 10.0 undecidable manual PG 346 0.0073 1.53 0.1
--.SDI.Z. 1999-09-27T22:21:32.53 10.0 undecidable manual PG 149 0.0079 -0.27 1.2
--.PQ9.Z. 1999-09-27T22:21:30.62 10.0 undecidable manual SG 161 0.0041 -1.61 0.1
--.ASS.Z. 1999-09-27T22:21:29.78 10.0 undecidable manual PG 326 0.0065 -0.17 1.4
--.NRCA.Z. 1999-09-27T22:21:28.82 10.0 undecidable manual SG 350 0.0033 -0.63 0.5
--.MNS.Z. 1999-09-27T22:21:28.59 10.0 undecidable manual SG 258 0.0035 -1.37 0.1
--.PQ9.Z. 1999-09-27T22:21:25.22 10.0 undecidable manual PG 161 0.0041 0.09 1.7
--.MNS.Z. 1999-09-27T22:21:24.39 10.0 positive manual PG 258 0.0035 0.57 2.5
--.NRCA.Z. 1999-09-27T22:21:23.21 10.0 negative manual PG 350 0.0033 -0.32 3.1
--.AQU.Z. 1999-09-27T22:21:23.24 10.0 undecidable manual SG 126 0.0016 0.04 0.7
--.AQU.Z. 1999-09-27T22:21:20.90 10.0 undecidable manual PG 126 0.0016 0.17 1.7
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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