Earthquake with magnitude of Md 2.3 on date 24-04-1999 and time 14:00:16 (Italy) in region 5 km SE Campotosto (AQ)

A magnitude Md 2.3 earthquake occured in region: 5 km SE Campotosto (AQ), on

  • 24-04-1999 12:00:16 (UTC)
  • 24-04-1999 14:00:16 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.52, 13.4 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
Campotosto AQ 5 542 542
Crognaleto TE 8 1297 1839
Capitignano AQ 8 665 2504
Barete AQ 12 737 3241
Fano Adriano TE 12 296 3537
Pizzoli AQ 12 4326 7863
Montereale AQ 13 2581 10444
Pietracamela TE 13 271 10715
Cortino TE 15 656 11371
Cagnano Amiterno AQ 16 1369 12740
Amatrice RI 16 2657 15397
L'Aquila AQ 18 69753 85150
Scoppito AQ 20 3727 88877

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km N of L'Aquila (69753 inhabitants)
30 Km SW of Teramo (54892 inhabitants)
62 Km W of Montesilvano (53738 inhabitants)
62 Km E of Terni (111501 inhabitants)
66 Km W of Chieti (51815 inhabitants)
67 Km W of Pescara (121014 inhabitants)
75 Km SE of Foligno (57155 inhabitants)
79 Km NE of Tivoli (56533 inhabitants)
80 Km NE of Guidonia Montecelio (88673 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 2.3 1999-04-24
12:00:16
42.52 13.4 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 363849
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1999-04-24 12:00:16 ± 0.216
Latitude 42.52 ± 0.01
Longitude 13.40 ± 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 363849

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) 2852.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 183
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
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) 0.00138
Epicentral distance of station farthest from the epicenter (degree) 0.00769
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:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 363849
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:41:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.SNTG.Z. 1999-04-24T12:00:44.79 10.0 undecidable manual SG 335 0.0073 0.5 0.4
--.ASS.Z. 1999-04-24T12:00:43.76 10.0 undecidable manual SG 315 0.007 0.68 0.3
--.MNS.Z. 1999-04-24T12:00:36.40 10.0 undecidable manual SG 256 0.0049 0.66 0.3
--.SDI.Z. 1999-04-24T12:00:33.33 10.0 undecidable manual PG 159 0.0077 -0.02 1.5
--.SNTG.Z. 1999-04-24T12:00:32.90 10.0 undecidable manual PG 335 0.0073 -0.37 1.2
--.ASS.Z. 1999-04-24T12:00:31.40 10.0 undecidable manual PG 315 0.007 -0.36 1.3
--.NRCA.Z. 1999-04-24T12:00:30.86 10.0 undecidable manual SG 326 0.0034 0.39 0.6
--.PQ9.Z. 1999-04-24T12:00:27.42 10.0 undecidable manual PG 179 0.0044 0.89 0.4
--.MNS.Z. 1999-04-24T12:00:26.74 10.0 undecidable manual PG 256 0.0049 -0.78 0.6
--.NRCA.Z. 1999-04-24T12:00:24.55 10.0 undecidable manual PG 326 0.0034 0.07 1.9
--.AQU.Z. 1999-04-24T12:00:23.53 10.0 undecidable manual SG 179 0.0014 0.16 0.7
--.AQU.Z. 1999-04-24T12:00:19.99 10.0 negative manual PG 179 0.0014 -0.39 2.9
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download