Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.0 on date 12-04-1990 and time 03:49:15 (Italy) in region 4 km SW Secinaro (AQ)

A magnitude Md 2.0 earthquake occured in region: 4 km SW Secinaro (AQ), on

  • 12-04-1990 01:49:15 (UTC)
  • 12-04-1990 03:49:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.1310, 13.6500 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Secinaro AQ 4 359 359
Gagliano Aterno AQ 4 254 613
Castelvecchio Subequo AQ 7 982 1595
Aielli AQ 7 1475 3070
Molina Aterno AQ 7 386 3456
Acciano AQ 8 327 3783
Castel di Ieri AQ 8 303 4086
Collarmele AQ 8 894 4980
Tione degli Abruzzi AQ 8 310 5290
Cerchio AQ 8 1635 6925
Celano AQ 10 11017 17942
Ovindoli AQ 11 1227 19169
San Benedetto in Perillis AQ 12 113 19282
Pescina AQ 12 4133 23415
Goriano Sicoli AQ 12 569 23984
Fontecchio AQ 12 369 24353
Raiano AQ 14 2815 27168
Navelli AQ 14 554 27722
Caporciano AQ 14 230 27952
Vittorito AQ 14 873 28825
Rocca di Mezzo AQ 14 1526 30351
San Benedetto dei Marsi AQ 14 3909 34260
Collepietro AQ 15 237 34497
Cocullo AQ 15 230 34727
Fagnano Alto AQ 15 418 35145
Popoli PE 16 5172 40317
Ortona dei Marsi AQ 16 542 40859
Corfinio AQ 16 1051 41910
Prata d'Ansidonia AQ 17 496 42406
Bussi sul Tirino PE 17 2518 44924
Prezza AQ 17 945 45869
San Pio delle Camere AQ 17 661 46530
Rocca di Cambio AQ 18 533 47063
Villa Sant'Angelo AQ 18 424 47487
Capestrano AQ 18 884 48371
Pratola Peligna AQ 19 7577 55948
Carapelle Calvisio AQ 19 87 56035
San Demetrio ne' Vestini AQ 19 1854 57889
Ortucchio AQ 20 1860 59749
Anversa degli Abruzzi AQ 20 341 60090
Gioia dei Marsi AQ 20 1989 62079
Roccacasale AQ 20 693 62772

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km SE of L'Aquila (69753 inhabitants)
49 Km SW of Chieti (51815 inhabitants)
59 Km S of Teramo (54892 inhabitants)
59 Km SW of Montesilvano (53738 inhabitants)
60 Km SW of Pescara (121014 inhabitants)
73 Km E of Tivoli (56533 inhabitants)
78 Km E of Guidonia Montecelio (88673 inhabitants)
87 Km NE of Velletri (53303 inhabitants)
95 Km SE of Terni (111501 inhabitants)
96 Km NE of Latina (125985 inhabitants)
100 Km E 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
Bulletin
Rev1000 		Md 2.0
ML-VAX 1.6 		1990-04-12
01:49:15		 42.131 13.65 10 2013-07-15
08:41:04		 Bollettino Sismico Italiano INGV 113989
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-04-12 01:49:15 ± 0.125
Latitude 42.1310 ± 0.0063
Longitude 13.6500 ± 0.0115
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 113989

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) 1176.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 203
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00186
Epicentral distance of station farthest from the epicenter (degree) 0.00680
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

Md:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 113989
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:46:00

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 113989
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.MNS.Z. 1990-04-12T01:49:41.13 10.0 undecidable manual SG 289 0.7548 -0.3 0.2
--.SDI.Z. 1990-04-12T01:49:31.37 10.0 undecidable manual SG 164 0.4329 0.29 0.3
--.MNS.Z. 1990-04-12T01:49:30.69 10.0 undecidable manual PG 289 0.7548 0.38 0.3
--.AQU.Z. 1990-04-12T01:49:26.39 10.0 undecidable manual SG 320 0.2886 0.1 0.7
--.SDI.Z. 1990-04-12T01:49:24.24 10.0 negative manual PG 164 0.4329 -0.09 3.4
--.AZI.Z. 1990-04-12T01:49:24.00 10.0 undecidable manual SG 227 0.2109 0.08 0.7
--.AQU.Z. 1990-04-12T01:49:21.34 10.0 undecidable manual PG 320 0.2886 -0.22 1.1
--.AZI.Z. 1990-04-12T01:49:20.00 10.0 undecidable manual PG 227 0.2109 -0.19 1.3
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