Earthquake with magnitude of Md 3.1 on date 22-04-1987 and time 11:28:49 (UTC) in region Costa Garganica (Foggia)

A magnitude Md 3.1 earthquake occured in region: Costa Garganica (Foggia), on

  • 22-04-1987 11:28:49 (UTC)
  • 22-04-1987 13:28:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.926, 15.679 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
Cagnano Varano FG 13 7330 7330
San Nicandro Garganico FG 14 15566 22896
Rodi Garganico FG 17 3693 26589
Carpino FG 17 4182 30771
Ischitella FG 19 4432 35203

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km NE of San Severo (53905 inhabitants)
39 Km NW of Manfredonia (57279 inhabitants)
53 Km N of Foggia (151991 inhabitants)
76 Km N of Cerignola (58396 inhabitants)
84 Km NW of Barletta (94814 inhabitants)
93 Km NW of Andria (100440 inhabitants)
95 Km NW of Trani (56217 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 3.1 1987-04-22
11:28:49
41.926 15.679 8 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 45399
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-04-22 11:28:49 ± 0.368
Latitude 41.9260 ± 0.0108
Longitude 15.6790 ± 0.0168
Depth (km) 8 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 45399

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) 1833.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 82
Number of associated phases, regardless of their use for origin computation 48
Number of defining phases 48
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) 0.00259
Epicentral distance of station farthest from the epicenter (degree) 0.08961
Number of stations at which the event was observed 35
Number of stations from which data was used for origin computation 35
Magnitude information

Md:3.1

Field Value
Value 3.1
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 45399
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:44:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.LOR.Z. 1987-04-22T11:31:13.00 10.0 undecidable manual PN 306 0.0896 -0.02 0.8
--.LBF.Z. 1987-04-22T11:31:11.00 10.0 undecidable manual PN 305 0.0877 0.77 0.5
--.CTI.Z. 1987-04-22T11:31:00.00 10.0 undecidable manual SN 326 0.0452 -0.75 0.4
--.VOY.Z. 1987-04-22T11:30:43.80 10.0 undecidable manual SN 343 0.0387 0.56 0.5
--.LPG.Z. 1987-04-22T11:30:38.70 10.0 undecidable manual PN 302 0.0663 1.2 0.3
--.VBY.Z. 1987-04-22T11:30:27.10 10.0 undecidable manual SN 355 0.0323 0.75 0.4
--.VAI.Z. 1987-04-22T11:30:23.50 10.0 undecidable manual PN 310 0.0571 0.07 1.2
--.CO9.Z. 1987-04-22T11:30:10.00 10.0 undecidable manual PN 304 0.0481 0.3 1.2
--.FOI.Z. 1987-04-22T11:30:05.50 10.0 undecidable manual PN 337 0.0459 -0.93 0.7
--.TTG.Z. 1987-04-22T11:30:05.00 10.0 undecidable manual SN 78 0.0243 -0.21 0.8
--.CTI.Z. 1987-04-22T11:30:04.30 10.0 undecidable manual PN 326 0.0452 -1.17 0.5
--.VOY.Z. 1987-04-22T11:29:54.60 10.0 undecidable manual PN 343 0.0387 -0.77 0.9
--.TRI.Z. 1987-04-22T11:29:51.00 10.0 undecidable manual PN 340 0.0362 -0.6 1.2
--.OHR.Z. 1987-04-22T11:29:51.00 10.0 undecidable manual PN 100 0.0352 0.9 0.8
--.VBY.Z. 1987-04-22T11:29:45.80 10.0 undecidable manual PN? 355 0.0323 0.18 0.7
--.PGD.Z. 1987-04-22T11:29:44.50 10.0 undecidable manual PN 305 0.0314 0.23 1.7
--.MG9.Z. 1987-04-22T11:29:42.50 10.0 undecidable manual SN 183 0.016 -1.05 0.3
--.CRE.Z. 1987-04-22T11:29:40.50 10.0 undecidable manual PN 303 0.0289 0.01 1.8
--.SD1.Z. 1987-04-22T11:29:35.50 10.0 undecidable manual SN 261 0.0126 1 0.4
--.TTG.Z. 1987-04-22T11:29:34.00 10.0 undecidable manual PN 78 0.0243 0.59 1.5
--.SGO.Z. 1987-04-22T11:29:34.00 10.0 undecidable manual SN 191 0.0125 -0.14 0.8
--.ASS.Z. 1987-04-22T11:29:31.00 10.0 undecidable manual PN 298 0.0225 0.3 1.8
--.ARV.Z. 1987-04-22T11:29:30.50 10.0 undecidable manual PN 309 0.0229 -0.85 1.1
--.LCI.Z. 1987-04-22T11:29:30.20 10.0 undecidable manual PN 130 0.0218 0.55 1.5
--.SGG.Z. 1987-04-22T11:29:28.90 10.0 undecidable manual SN 241 0.01 1.5 0.1
--.TDS.Z. 1987-04-22T11:29:27.30 10.0 undecidable manual PN 167 0.0208 -0.86 1.1
--.CM8.Z. 1987-04-22T11:29:27.80 10.0 undecidable manual PN 305 0.0202 -0.23 1.9
--.AM8.Z. 1987-04-22T11:29:26.66 10.0 undecidable manual PN 317 0.02 -0.25 1.9
--.ORI.Z. 1987-04-22T11:29:24.50 10.0 undecidable manual PN 162 0.0176 1.24 0.6
--.TR9.Z. 1987-04-22T11:29:23.30 10.0 undecidable manual SG 201 0.0084 0.83 0.5
--.DUI.Z. 1987-04-22T11:29:21.50 10.0 undecidable manual SG 254 0.0085 -1.2 0.2
--.MG9.Z. 1987-04-22T11:29:20.00 10.0 undecidable manual PN 183 0.016 -0.9 1
--.SOR.Z. 1987-04-22T11:29:20.60 10.0 undecidable manual PN 217 0.0151 1.2 0.6
--.SGO.Z. 1987-04-22T11:29:16.50 10.0 undecidable manual PN 191 0.0125 1.03 0.8
--.FG4.Z. 1987-04-22T11:29:16.50 10.0 undecidable manual SG 188 0.0072 -1.52 0.1
--.SD1.Z. 1987-04-22T11:29:16.20 10.0 undecidable manual PN 261 0.0126 0.52 1.6
--.BRT.Z. 1987-04-22T11:29:15.50 10.0 undecidable manual PN 133 0.0137 -1.74 0.2
--.SGG.Z. 1987-04-22T11:29:11.60 10.0 undecidable manual PN 241 0.01 0.02 2
--.DUI.Z. 1987-04-22T11:29:09.50 10.0 undecidable manual PG 254 0.0085 0.64 1.4
--.TR9.Z. 1987-04-22T11:29:08.80 10.0 undecidable manual PG 201 0.0084 0.07 2
--.FG4.Z. 1987-04-22T11:29:06.00 10.0 undecidable manual PG 188 0.0072 -0.16 1.9
--.FG5.Z. 1987-04-22T11:29:04.00 10.0 undecidable manual PG 205 0.0064 -0.5 1.6
--.FG2.Z. 1987-04-22T11:29:03.50 10.0 undecidable manual SG 252 0.0036 -1.73 0.1
--.FG3.Z. 1987-04-22T11:29:01.20 10.0 undecidable manual SG 137 0.0027 -0.53 0.6
--.FOG.Z. 1987-04-22T11:28:59.70 10.0 undecidable manual PG 191 0.0043 -0.58 1.5
--.FG2.Z. 1987-04-22T11:28:59.00 10.0 undecidable manual PG 252 0.0036 0.22 1.9
--.FG3.Z. 1987-04-22T11:28:57.50 10.0 undecidable manual PG 137 0.0027 0.74 1.3
--.MS1.Z. 1987-04-22T11:28:57.00 10.0 undecidable manual PG 138 0.0026 0.28 0
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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