Earthquake with magnitude of Md 2.5 on date 28-08-1990 and time 10:32:09 (Italy) in region 7 km S Crognaleto (TE)

A magnitude Md 2.5 earthquake occured in region: 7 km S Crognaleto (TE), on

  • 28-08-1990 08:32:09 (UTC)
  • 28-08-1990 10:32:09 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.4870, 13.4610 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
Crognaleto TE 7 1297 1297
Pietracamela TE 9 271 1568
Fano Adriano TE 10 296 1864
Campotosto AQ 11 542 2406
Capitignano AQ 14 665 3071
Pizzoli AQ 15 4326 7397
Barete AQ 15 737 8134
Cortino TE 16 656 8790
L'Aquila AQ 16 69753 78543
Isola del Gran Sasso d'Italia TE 17 4773 83316
Tossicia TE 17 1406 84722
Montorio al Vomano TE 18 8218 92940
Montereale AQ 18 2581 95521
Colledara TE 19 2179 97700
Cagnano Amiterno AQ 20 1369 99069
Poggio Picenze AQ 20 1136 100205

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km NE of L'Aquila (69753 inhabitants)
28 Km SW of Teramo (54892 inhabitants)
57 Km W of Montesilvano (53738 inhabitants)
60 Km W of Chieti (51815 inhabitants)
62 Km W of Pescara (121014 inhabitants)
67 Km E of Terni (111501 inhabitants)
80 Km NE of Tivoli (56533 inhabitants)
81 Km SE of Foligno (57155 inhabitants)
81 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
Bulletin
Rev1000
Md 2.5 1990-08-28
08:32:09
42.487 13.461 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 125759
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-08-28 08:32:09 ± 0.415
Latitude 42.4870 ± 0.0197
Longitude 13.4610 ± 0.0521
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 125759

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) 4800.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 167
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
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) 0.00267
Epicentral distance of station farthest from the epicenter (degree) 0.00664
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 125759
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:56:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.CIO.Z. 1990-08-28T08:32:35.40 10.0 undecidable manual SG 341 0.7326 -0.32 0.6
--.MNS.Z. 1990-08-28T08:32:32.50 10.0 undecidable manual SG 260 0.5772 1.91 0
--.CIO.Z. 1990-08-28T08:32:24.10 10.0 undecidable manual PG 341 0.7326 -0.71 1.4
--.ALP.Z. 1990-08-28T08:32:21.80 10.0 undecidable manual SG 14 0.2997 0.25 0.8
--.MNS.Z. 1990-08-28T08:32:21.50 10.0 undecidable manual PG 260 0.5772 -0.35 1.2
--.AZI.Z. 1990-08-28T08:32:20.00 10.0 undecidable manual PG 182 0.4995 -0.29 1.3
--.ALP.Z. 1990-08-28T08:32:17.30 10.0 undecidable manual PG 14 0.2997 0.67 1.7
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download