Earthquake with magnitude of Md 2.8 on date 05-08-1988 and time 23:35:02 (Italy) in region 1 km NE Borbona (RI)

A magnitude Md 2.8 earthquake occured in region: 1 km NE Borbona (RI), on

  • 05-08-1988 21:35:02 (UTC)
  • 05-08-1988 23:35:02 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.52, 13.14 at 5 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
Borbona RI 1 617 617
Posta RI 4 694 1311
Montereale AQ 9 2581 3892
Cagnano Amiterno AQ 10 1369 5261
Micigliano RI 11 127 5388
Cittareale RI 11 482 5870
Antrodoco RI 13 2588 8458
Capitignano AQ 13 665 9123
Barete AQ 14 737 9860
Borgo Velino RI 15 972 10832
Leonessa RI 15 2435 13267
Pizzoli AQ 16 4326 17593
Castel Sant'Angelo RI 17 1308 18901
Amatrice RI 17 2657 21558
Scoppito AQ 19 3727 25285
Campotosto AQ 19 542 25827

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km NW of L'Aquila (69753 inhabitants)
41 Km E of Terni (111501 inhabitants)
49 Km W of Teramo (54892 inhabitants)
60 Km SE of Foligno (57155 inhabitants)
67 Km NE of Guidonia Montecelio (88673 inhabitants)
68 Km NE of Tivoli (56533 inhabitants)
83 Km W of Montesilvano (53738 inhabitants)
86 Km E of Viterbo (67173 inhabitants)
86 Km W of Chieti (51815 inhabitants)
88 Km W of Pescara (121014 inhabitants)
88 Km NE of Roma (2864731 inhabitants)
90 Km SE of Perugia (166134 inhabitants)
98 Km NE of Velletri (53303 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 1.9
1988-08-05
21:35:02
42.52 13.14 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 74839
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-08-05 21:35:02 ± 0.132
Latitude 42.52 ± 0.01
Longitude 13.14 ± 0.01
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 74839

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) 1293.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 80
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 23
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) 0.00227
Epicentral distance of station farthest from the epicenter (degree) 0.01255
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

Md:2.8

Field Value
Value 2.8
Uncertainty
Num. used stations 5
Type of magnitude Md
Reference to an origin 74839
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:10:36

ML:1.9

Field Value
Value 1.9
Uncertainty
Num. used stations 5
Type of magnitude ML
Reference to an origin 74839
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. 1988-08-05T21:35:37.71 10.0 undecidable manual SG 351 0.0088 0.97 0.1
--.RDP.Z. 1988-08-05T21:35:32.11 10.0 undecidable manual SG 202 0.0074 0.55 0.4
--.CRE.Z. 1988-08-05T21:35:29.00 10.0 undecidable manual PN 322 0.0125 0.76 0.5
--.CP9.Z. 1988-08-05T21:35:27.52 10.0 undecidable manual SG 192 0.0061 0.8 0.4
--.CM8.Z. 1988-08-05T21:35:27.50 10.0 undecidable manual SG 0 0.006 0.4 0.8
--.ASS.Z. 1988-08-05T21:35:25.63 10.0 undecidable manual SG 326 0.0058 -0.23 0.7
--.AM8.Z. 1988-08-05T21:35:24.20 10.0 undecidable manual PN 18 0.0097 0.34 1.2
--.AZI.Z. 1988-08-05T21:35:23.50 10.0 undecidable manual SG 157 0.0052 -0.11 0.7
--.SS8.Z. 1988-08-05T21:35:22.10 10.0 undecidable manual SG 7 0.0044 1.24 0.1
--.SDI.Z. 1988-08-05T21:35:21.00 10.0 undecidable manual PG 148 0.0085 -0.49 1
--.ARV.Z. 1988-08-05T21:35:21.67 10.0 undecidable manual PG 351 0.0088 -0.47 1
--.RDP.Z. 1988-08-05T21:35:19.45 10.0 undecidable manual PG 202 0.0074 0.3 1.4
--.ALP.Z. 1988-08-05T21:35:17.75 10.0 undecidable manual SG 50 0.0036 -0.18 1
--.CP9.Z. 1988-08-05T21:35:16.96 10.0 undecidable manual PG 192 0.0061 0.61 1
--.MNS.Z. 1988-08-05T21:35:16.00 10.0 undecidable manual SG 248 0.0032 -0.39 0.6
--.ASS.Z. 1988-08-05T21:35:15.39 10.0 undecidable manual PG 326 0.0058 -0.47 1.3
--.CM8.Z. 1988-08-05T21:35:15.85 10.0 negative manual PG 0 0.006 -0.46 2.6
--.AQU.Z. 1988-08-05T21:35:13.14 10.0 undecidable manual SG 131 0.0023 0.95 0.2
--.SS8.Z. 1988-08-05T21:35:13.11 10.0 undecidable manual PG 7 0.0044 0.2 1.7
--.AZI.Z. 1988-08-05T21:35:13.45 10.0 undecidable manual PG 157 0.0052 -1.11 0.3
--.ALP.Z. 1988-08-05T21:35:10.95 10.0 negative manual PG 50 0.0036 -0.33 3.1
--.MNS.Z. 1988-08-05T21:35:09.82 10.0 undecidable manual PG 248 0.0032 -0.57 1.1
--.AQU.Z. 1988-08-05T21:35:08.10 10.0 undecidable manual PG 131 0.0023 0.13 1.8
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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