Earthquake with magnitude of Md 2.4 on date 12-02-1987 and time 05:52:18 (Italy) in region 2 km W Brindisi Montagna (PZ)

A magnitude Md 2.4 earthquake occured in region: 2 km W Brindisi Montagna (PZ), on

  • 12-02-1987 04:52:18 (UTC)
  • 12-02-1987 05:52:18 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.6060, 15.9200 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
Brindisi Montagna PZ 2 908 908
Trivigno PZ 7 678 1586
Vaglio Basilicata PZ 7 2047 3633
Anzi PZ 10 1696 5329
Albano di Lucania PZ 10 1435 6764
Potenza PZ 10 67122 73886
Pignola PZ 12 6962 80848
Tolve PZ 12 3251 84099
Castelmezzano PZ 14 800 84899
Campomaggiore PZ 14 811 85710
Cancellara PZ 14 1309 87019
Abriola PZ 14 1531 88550
Pietrapertosa PZ 16 1032 89582
San Chirico Nuovo PZ 16 1368 90950
Calvello PZ 16 1948 92898
Pietragalla PZ 16 4160 97058
Laurenzana PZ 17 1797 98855
Tricarico MT 19 5388 104243
Oppido Lucano PZ 19 3813 108056

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km E of Potenza (67122 inhabitants)
58 Km W of Matera (60436 inhabitants)
59 Km W of Altamura (70396 inhabitants)
73 Km S of Cerignola (58396 inhabitants)
76 Km SW of Andria (100440 inhabitants)
79 Km E of Battipaglia (50786 inhabitants)
85 Km SW of Barletta (94814 inhabitants)
85 Km SW of Trani (56217 inhabitants)
86 Km SW of Bitonto (55540 inhabitants)
86 Km SW of Bisceglie (55422 inhabitants)
88 Km SW of Molfetta (59874 inhabitants)
98 Km E of Salerno (135261 inhabitants)
99 Km SW of Bari (326344 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 2.4 1987-02-12
04:52:18
40.606 15.92 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 41109
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-02-12 04:52:18 ± 0.167
Latitude 40.6060 ± 0.0116
Longitude 15.9200 ± 0.0112
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 41109

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) 1593.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 169
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) 0.00413
Epicentral distance of station farthest from the epicenter (degree) 0.00890
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:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 41109
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:40:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.TS9.Z. 1987-02-12T04:52:52.00 10.0 undecidable manual SG 160 0.9879 -0.02 0.6
--.BRT.Z. 1987-02-12T04:52:51.00 10.0 undecidable manual SG 73 0.9657 -0.04 0.9
--.TS9.Z. 1987-02-12T04:52:38.50 10.0 undecidable manual PG 160 0.9879 0.83 0.2
--.SGO.Z. 1987-02-12T04:52:37.00 10.0 undecidable manual SG? 264 0.4551 2.04 0
--.MG9.Z. 1987-02-12T04:52:37.00 10.0 undecidable manual SG 210 0.5439 -0.45 0.4
--.BRT.Z. 1987-02-12T04:52:37.00 10.0 undecidable manual PG 73 0.9657 -0.11 1.5
--.ORI.Z. 1987-02-12T04:52:31.50 10.0 undecidable manual PG 143 0.6771 -0.34 1.2
--.MG9.Z. 1987-02-12T04:52:29.00 10.0 undecidable manual PG 210 0.5439 -0.25 1.5
--.SGO.Z. 1987-02-12T04:52:28.00 10.0 undecidable manual PG 264 0.4551 0.18 1.7
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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