Earthquake with magnitude of Md 2.8 on date 08-06-1991 and time 20:22:36 (Italy) in region 3 km NW Scoppito (AQ)

A magnitude Md 2.8 earthquake occured in region: 3 km NW Scoppito (AQ), on

  • 08-06-1991 18:22:36 (UTC)
  • 08-06-1991 20:22:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.39, 13.23 at 8 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
Scoppito AQ 3 3727 3727
Pizzoli AQ 8 4326 8053
Cagnano Amiterno AQ 8 1369 9422
Barete AQ 8 737 10159
Tornimparte AQ 13 3187 13346
Antrodoco RI 13 2588 15934
Borgo Velino RI 14 972 16906
Lucoli AQ 14 1011 17917
L'Aquila AQ 15 69753 87670
Montereale AQ 15 2581 90251
Capitignano AQ 16 665 90916
Borbona RI 16 617 91533
Micigliano RI 16 127 91660
Fiamignano RI 16 1413 93073
Castel Sant'Angelo RI 16 1308 94381
Petrella Salto RI 17 1197 95578
Posta RI 18 694 96272

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km W of L'Aquila (69753 inhabitants)
49 Km SW of Teramo (54892 inhabitants)
51 Km E of Terni (111501 inhabitants)
59 Km NE of Tivoli (56533 inhabitants)
60 Km NE of Guidonia Montecelio (88673 inhabitants)
76 Km SE of Foligno (57155 inhabitants)
77 Km W of Montesilvano (53738 inhabitants)
77 Km W of Chieti (51815 inhabitants)
81 Km W of Pescara (121014 inhabitants)
83 Km NE of Roma (2864731 inhabitants)
87 Km NE of Velletri (53303 inhabitants)
92 Km E of Viterbo (67173 inhabitants)
100 Km NE of Pomezia (62966 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 2.8
ML-VAX 2.0
1991-06-08
18:22:36
42.39 13.23 8 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 143039
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1991-06-08 18:22:36 ± 0.278
Latitude 42.39 ± 0.02
Longitude 13.23 ± 0.03
Depth (km) 8 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 143039

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) 2999.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 116
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) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00113
Epicentral distance of station farthest from the epicenter (degree) 0.01384
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

Md:2.8

Field Value
Value 2.8
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 143039
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:13:30

ML:2

Field Value
Value 2
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 143039
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 Takeoff_angle Residual Weight
--.ARV.Z. 1991-06-08T18:23:14.51 10.0 undecidable manual SN 349 0.0101 0.41 0.5
--.CRE.Z. 1991-06-08T18:23:05.00 10.0 undecidable manual PN 323 0.0138 1.16 0.3
--.SDI.Z. 1991-06-08T18:23:03.41 10.0 undecidable manual SG 147 0.0072 -1.05 0.3
--.ASS.Z. 1991-06-08T18:23:03.66 10.0 undecidable manual SG 328 0.0071 -0.4 0.6
--.RMP.Z. 1991-06-08T18:23:01.60 10.0 undecidable manual SG 214 0.0062 0.57 0.5
--.ARV.Z. 1991-06-08T18:22:58.56 10.0 undecidable manual PN 349 0.0101 0.45 1.2
--.ASS.Z. 1991-06-08T18:22:51.68 10.0 undecidable manual PG 328 0.0071 -0.64 1.2
--.RMP.Z. 1991-06-08T18:22:51.60 10.0 undecidable manual PG 214 0.0062 1.02 0.7
--.SDI.Z. 1991-06-08T18:22:51.45 10.0 undecidable manual PG 147 0.0072 -1.1 0.6
--.MNS.Z. 1991-06-08T18:22:50.50 10.0 undecidable manual SG 269 0.0036 -1.09 0.2
--.CP9.Z. 1991-06-08T18:22:48.97 10.0 undecidable manual PG 201 0.0051 0.84 1
--.MNS.Z. 1991-06-08T18:22:44.50 10.0 negative manual PG 269 0.0036 -0.63 2.6
--.AQU.Z. 1991-06-08T18:22:42.12 10.0 undecidable manual SG 106 0.0011 0.01 0.7
--.AQU.Z. 1991-06-08T18:22:39.74 10.0 positive manual PG 106 0.0011 0.09 3.6
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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