Earthquake with magnitude of Md 2.1 on date 17-05-1999 and time 03:18:54 (Italy) in region 4 km SW Pietracamela (TE)

A magnitude Md 2.1 earthquake occured in region: 4 km SW Pietracamela (TE), on

  • 17-05-1999 01:18:54 (UTC)
  • 17-05-1999 03:18:54 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.5, 13.52 at 9 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
Pietracamela TE 4 271 271
Fano Adriano TE 6 296 567
Crognaleto TE 6 1297 1864
Isola del Gran Sasso d'Italia TE 12 4773 6637
Tossicia TE 12 1406 8043
Montorio al Vomano TE 13 8218 16261
Cortino TE 13 656 16917
Campotosto AQ 13 542 17459
Colledara TE 14 2179 19638
Castelli TE 16 1159 20797
Castel Castagna TE 17 500 21297
Capitignano AQ 18 665 21962
L'Aquila AQ 19 69753 91715
Pizzoli AQ 19 4326 96041

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km NE of L'Aquila (69753 inhabitants)
23 Km SW of Teramo (54892 inhabitants)
52 Km W of Montesilvano (53738 inhabitants)
56 Km W of Chieti (51815 inhabitants)
57 Km W of Pescara (121014 inhabitants)
72 Km E of Terni (111501 inhabitants)
83 Km SE of Foligno (57155 inhabitants)
84 Km NE of Tivoli (56533 inhabitants)
86 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 2.1 1999-05-17
01:18:54
42.5 13.52 9 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 365959
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1999-05-17 01:18:54 ± 0.465
Latitude 42.50 ± 0.02
Longitude 13.52 ± 0.03
Depth (km) 9 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 365959

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) 3476.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 206
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
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) 0.00146
Epicentral distance of station farthest from the epicenter (degree) 0.00737
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 365959
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:43:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.MNS.Z. 1999-05-17T01:19:16.86 10.0 undecidable manual SG 259 0.0056 0.1 0.6
--.SDI.Z. 1999-05-17T01:19:11.42 10.0 undecidable manual PG 164 0.0074 0.42 0.9
--.PQ9.Z. 1999-05-17T01:19:11.90 10.0 undecidable manual SG 190 0.0044 -1.18 0
--.NRCA.Z. 1999-05-17T01:19:10.37 10.0 undecidable manual SG 318 0.004 -0.52 0.4
--.MNS.Z. 1999-05-17T01:19:08.36 10.0 undecidable manual PG 259 0.0056 0.97 0.3
--.PQ9.Z. 1999-05-17T01:19:04.73 10.0 undecidable manual PG 190 0.0044 -0.07 1.7
--.NRCA.Z. 1999-05-17T01:19:03.62 10.0 undecidable manual PG 318 0.004 -0.38 1.2
--.AQU.Z. 1999-05-17T01:19:01.71 10.0 undecidable manual SG 209 0.0015 -0.23 0.6
--.AQU.Z. 1999-05-17T01:18:58.77 10.0 negative manual PG 209 0.0015 -0.07 3.4
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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