Earthquake with magnitude of Md 3.6 on date 01-04-1987 and time 05:49:14 (Italy) in region 3 km E Forlimpopoli (FC)

A magnitude Md 3.6 earthquake occured in region: 3 km E Forlimpopoli (FC), on

  • 01-04-1987 03:49:14 (UTC)
  • 01-04-1987 05:49:14 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.18, 12.16 at 4 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
Forlimpopoli FC 3 13290 13290
Bertinoro FC 4 11059 24349
Cesena FC 8 96758 121107
Meldola FC 10 9970 131077
Forlì FC 11 117913 248990
Montiano FC 15 1716 250706
Gambettola FC 15 10660 261366
Predappio FC 17 6346 267712
Castrocaro Terme e Terra del Sole FC 17 6426 274138
Longiano FC 17 7126 281264
Cervia RA 18 28940 310204
Cesenatico FC 19 25796 336000
Gatteo FC 19 9068 345068
Roncofreddo FC 19 3386 348454

Municipalities with at least 50000 inhabitants

An earthquake occurred to
8 Km NW of Cesena (96758 inhabitants)
11 Km E of Forlì (117913 inhabitants)
25 Km E of Faenza (58541 inhabitants)
27 Km S of Ravenna (159116 inhabitants)
35 Km W of Rimini (147750 inhabitants)
41 Km E of Imola (69797 inhabitants)
67 Km W of Pesaro (94582 inhabitants)
74 Km E of Bologna (386663 inhabitants)
78 Km W of Fano (60888 inhabitants)
82 Km N of Arezzo (99543 inhabitants)
85 Km SE of Ferrara (133155 inhabitants)
86 Km NE of Firenze (382808 inhabitants)
91 Km NE of Scandicci (50609 inhabitants)
91 Km E of Prato (191150 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 3.6 1987-04-01
03:49:14
44.18 12.16 4 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 43879
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-04-01 03:49:14 ± 0.438
Latitude 44.18 ± 0.01
Longitude 12.16 ± 0.01
Depth (km) 4 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 43879

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) 1411.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 42
Number of associated phases, regardless of their use for origin computation 128
Number of defining phases 128
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.7
Epicentral distance of station closest to the epicenter (degree) 0.00389
Epicentral distance of station farthest from the epicenter (degree) 0.08928
Number of stations at which the event was observed 104
Number of stations from which data was used for origin computation 104
Magnitude information

Md:3.6

Field Value
Value 3.6
Uncertainty
Num. used stations 6
Type of magnitude Md
Reference to an origin 43879
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:43:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.SKO.Z. 1987-04-01T03:52:16.50 10.0 undecidable manual SN 104 0.064 1.19 0.3
--.LOR.Z. 1987-04-01T03:52:00.79 10.0 undecidable manual SN 300 0.059 -1.35 0.2
--.LBF.Z. 1987-04-01T03:51:57.00 10.0 undecidable manual SN 298 0.0573 -0.63 0.4
--.SMF.Z. 1987-04-01T03:51:56.50 10.0 undecidable manual SN 295 0.057 -0.23 0.5
--.GRR.Z. 1987-04-01T03:51:38.20 10.0 undecidable manual PN 299 0.0893 1.02 0.5
--.HAU.Z. 1987-04-01T03:51:38.00 10.0 undecidable manual SN 315 0.0499 -0.19 0.5
--.CDF.Z. 1987-04-01T03:51:32.40 10.0 undecidable manual SN 322 0.0486 -2.37 0
--.BDV.Z. 1987-04-01T03:51:30.00 10.0 undecidable manual SN 108 0.0469 0.12 0.5
--.NKY.Z. 1987-04-01T03:51:29.00 10.0 undecidable manual SN 102 0.0462 0.78 0.4
--.BSF.Z. 1987-04-01T03:51:28.00 10.0 undecidable manual SN 316 0.0469 -2.16 0
--.MFF.Z. 1987-04-01T03:51:24.00 10.0 undecidable manual PN 289 0.0806 -0.07 0.9
--.HCY.Z. 1987-04-01T03:51:24.00 10.0 undecidable manual SN 108 0.0442 0.98 0.3
--.BRY.Z. 1987-04-01T03:51:21.00 10.0 undecidable manual SN 102 0.0431 0.96 0.3
--.LRG.Z. 1987-04-01T03:51:08.40 10.0 undecidable manual SN 261 0.0382 1.37 0.2
--.DOU.Z. 1987-04-01T03:51:07.10 10.0 undecidable manual PN 321 0.0705 -1.49 0.3
--.LMR.Z. 1987-04-01T03:51:06.00 10.0 undecidable manual SN 259 0.0375 0.84 0.4
--.LPG.Z. 1987-04-01T03:51:03.20 10.0 undecidable manual SN 290 0.0364 0.69 0.5
--.TCF.Z. 1987-04-01T03:51:01.39 10.0 undecidable manual PN 290 0.0658 0.01 1.1
--.CAF.Z. 1987-04-01T03:51:00.80 10.0 undecidable manual PN 279 0.065 0.58 0.9
--.SKO.Z. 1987-04-01T03:50:58.50 10.0 positive manual PN 104 0.064 -0.21 2.2
--.OHR.Z. 1987-04-01T03:50:57.50 10.0 undecidable manual PN 112 0.0634 -0.24 1.1
--.MAF.Z. 1987-04-01T03:50:57.80 10.0 undecidable manual PN 289 0.0635 -0.08 1.1
--.BGF.Z. 1987-04-01T03:50:56.50 10.0 undecidable manual PN 293 0.0626 -0.02 1.1
--.SSF.Z. 1987-04-01T03:50:52.70 10.0 undecidable manual PN 298 0.0603 -0.29 1.1
--.AVF.Z. 1987-04-01T03:50:52.89 10.0 undecidable manual PN 295 0.0603 -0.1 1.1
--.LOR.Z. 1987-04-01T03:50:51.10 10.0 undecidable manual PN 300 0.059 -0.01 1.2
--.PHP.Z. 1987-04-01T03:50:50.60 10.0 undecidable manual PN 109 0.0588 -0.25 1.1
--.MOX.Z. 1987-04-01T03:50:49.00 10.0 undecidable manual PN 356 0.0583 -0.91 0.7
--.SBF.Z. 1987-04-01T03:50:48.29 10.0 undecidable manual SN 266 0.0307 1.08 0.3
--.LBF.Z. 1987-04-01T03:50:48.50 10.0 undecidable manual PN 298 0.0573 -0.01 1.2
--.SMF.Z. 1987-04-01T03:50:47.89 10.0 undecidable manual PN 295 0.057 -0.1 1.2
--.TIR.Z. 1987-04-01T03:50:47.00 10.0 undecidable manual PN 113 0.0568 -0.71 0.9
--.BCI.Z. 1987-04-01T03:50:44.60 10.0 undecidable manual PN 104 0.0542 0.86 0.8
--.ORX.Z. 1987-04-01T03:50:43.30 10.0 undecidable manual SN 297 0.0296 -1.2 0.3
--.IVA.Z. 1987-04-01T03:50:41.70 10.0 undecidable manual PN 100 0.0517 1.73 0.2
--.SDA.Z. 1987-04-01T03:50:41.20 10.0 undecidable manual PN 109 0.0519 0.98 0.7
--.GWF.Z. 1987-04-01T03:50:39.60 10.0 undecidable manual PN 328 0.0515 0.04 1.3
--.HAU.Z. 1987-04-01T03:50:37.20 10.0 undecidable manual PN 315 0.0499 -0.08 1.3
--.TTG.Z. 1987-04-01T03:50:36.50 10.0 undecidable manual PN 105 0.049 0.72 1.9
--.CDF.Z. 1987-04-01T03:50:35.30 10.0 undecidable manual PN 322 0.0486 -0.01 1.3
--.CVF.Z. 1987-04-01T03:50:35.20 10.0 undecidable manual SN 236 0.0259 0.57 0.5
--.BSF.Z. 1987-04-01T03:50:32.39 10.0 undecidable manual PN 316 0.0469 -0.26 1.3
--.BUH.Z. 1987-04-01T03:50:32.80 10.0 undecidable manual PN 330 0.0472 -0.27 1.3
--.BDV.Z. 1987-04-01T03:50:32.00 10.0 undecidable manual PN 108 0.0469 -0.49 2.3
--.NKY.Z. 1987-04-01T03:50:32.00 10.0 undecidable manual PN 102 0.0462 0.47 1.2
--.MOF.Z. 1987-04-01T03:50:30.60 10.0 undecidable manual PN 317 0.0456 0.04 1.4
--.ORI.Z. 1987-04-01T03:50:30.00 10.0 undecidable manual PN? 140 0.0468 -2.44 0
--.KHC.Z. 1987-04-01T03:50:30.30 10.0 undecidable manual PN 10 0.0454 0.03 2.7
--.ROF.Z. 1987-04-01T03:50:30.39 10.0 undecidable manual PN 315 0.0456 -0.12 1.4
--.VKA.Z. 1987-04-01T03:50:29.39 10.0 positive manual PN 33 0.0449 -0.18 2.7
--.HCY.Z. 1987-04-01T03:50:28.70 10.0 undecidable manual PN 108 0.0442 0.17 1.4
--.MG9.Z. 1987-04-01T03:50:27.00 10.0 undecidable manual PN 146 0.0427 0.72 1
--.BRT.Z. 1987-04-01T03:50:27.50 10.0 undecidable manual PN 130 0.0444 -1.28 0.5
--.BRY.Z. 1987-04-01T03:50:27.00 10.0 undecidable manual PN 102 0.0431 0.19 1.4
--.FOI.Z. 1987-04-01T03:50:22.50 10.0 undecidable manual SN 9 0.022 -1.92 0.1
--.SLE.Z. 1987-04-01T03:50:21.50 10.0 undecidable manual PN 325 0.0396 0.09 1.5
--.LRG.Z. 1987-04-01T03:50:20.00 10.0 undecidable manual PN 261 0.0382 0.71 1.1
--.SGO.Z. 1987-04-01T03:50:20.50 10.0 undecidable manual PN 145 0.0386 0.51 1.3
--.CDM.Z. 1987-04-01T03:50:19.00 10.0 undecidable manual PN 134 0.0389 -1.4 0.5
--.EMS.Z. 1987-04-01T03:50:19.80 10.0 undecidable manual PN 298 0.0373 1.88 0.2
--.LMR.Z. 1987-04-01T03:50:18.50 10.0 undecidable manual PN 259 0.0375 0.29 1.4
--.FUR.Z. 1987-04-01T03:50:17.00 10.0 undecidable manual PN 351 0.0363 0.63 1.2
--.FRF.Z. 1987-04-01T03:50:16.60 10.0 undecidable manual PN 262 0.0362 0.38 1.4
--.LPG.Z. 1987-04-01T03:50:16.50 10.0 undecidable manual PN 290 0.0364 -0.18 1.5
--.BNI.Z. 1987-04-01T03:50:16.50 10.0 undecidable manual PN 284 0.0359 0.6 1.3
--.RRL.Z. 1987-04-01T03:50:14.70 10.0 undecidable manual PN 282 0.0351 0.12 1.5
--.TR9.Z. 1987-04-01T03:50:14.30 10.0 undecidable manual PN 142 0.0346 0.35 1.5
--.SAX.Z. 1987-04-01T03:50:13.10 10.0 undecidable manual PN 328 0.0328 2.02 0.1
--.LSD.Z. 1987-04-01T03:50:11.80 10.0 undecidable manual PN 291 0.0339 -1.01 0.9
--.BHG.Z. 1987-04-01T03:50:11.10 10.0 negative manual PN 7 0.0321 0.99 1.8
--.MS1.Z. 1987-04-01T03:50:11.00 10.0 undecidable manual PN 130 0.0334 -0.89 1
--.SOO.Z. 1987-04-01T03:50:10.90 10.0 undecidable manual PN 276 0.0326 0.02 1.6
--.DA9.Z. 1987-04-01T03:50:10.00 10.0 undecidable manual PN 276 0.0317 0.53 1.3
--.LLS.Z. 1987-04-01T03:50:09.80 10.0 undecidable manual PN 321 0.0312 1.22 0.7
--.RSP.Z. 1987-04-01T03:50:09.10 10.0 undecidable manual PN 287 0.0325 -1.61 0.4
--.GAP.Z. 1987-04-01T03:50:09.00 10.0 undecidable manual PN 347 0.0304 1.52 0.4
--.STV.Z. 1987-04-01T03:50:08.70 10.0 undecidable manual PN 272 0.0312 0.15 1.5
--.SBF.Z. 1987-04-01T03:50:08.20 10.0 undecidable manual PN 266 0.0307 0.35 1.5
--.SGG.Z. 1987-04-01T03:50:06.00 10.0 undecidable manual PN 148 0.029 0.69 1.2
--.MSC.Z. 1987-04-01T03:50:06.90 10.0 undecidable manual PN 155 0.0294 1.07 0.8
--.ORO.Z. 1987-04-01T03:50:06.00 10.0 undecidable manual PN 297 0.0296 -0.26 1.5
--.HVA.Z. 1987-04-01T03:50:05.20 10.0 undecidable manual PN 106 0.0292 -0.46 1.4
--.ORX.Z. 1987-04-01T03:50:05.30 10.0 undecidable manual PN 297 0.0296 -0.98 0.9
--.FG2.Z. 1987-04-01T03:50:04.51 10.0 undecidable manual PN 135 0.029 -0.8 1.1
--.VDL.Z. 1987-04-01T03:50:03.00 10.0 positive manual PN 321 0.0268 1.02 1.7
--.ROB.Z. 1987-04-01T03:50:03.30 10.0 undecidable manual PN 273 0.0276 0.09 1.6
--.IMP.Z. 1987-04-01T03:50:03.20 10.0 undecidable manual PN 266 0.0277 -0.06 1.6
--.DUI.Z. 1987-04-01T03:50:03.50 10.0 undecidable manual PN 145 0.0272 0.97 0.9
--.TMA.Z. 1987-04-01T03:50:02.70 10.0 positive manual PN 310 0.0271 0.29 3
--.KBA.Z. 1987-04-01T03:50:02.70 10.0 positive manual PN 15 0.0271 0.3 3
--.OSS.Z. 1987-04-01T03:50:01.89 10.0 undecidable manual PN 330 0.0259 1.33 0.6
--.CVF.Z. 1987-04-01T03:50:01.00 10.0 undecidable manual PN 236 0.0259 0.41 1.4
--.VAI.Z. 1987-04-01T03:50:01.00 10.0 undecidable manual PN 306 0.0264 -0.25 1.5
--.CKI.Z. 1987-04-01T03:50:00.00 10.0 undecidable manual PN 276 0.0251 0.7 1.2
--.SD1.Z. 1987-04-01T03:49:59.50 10.0 undecidable manual PN 153 0.0247 0.82 1.1
--.RMP.Z. 1987-04-01T03:49:55.50 10.0 undecidable manual PN 170 0.0215 1.6 0.4
--.LJU.Z. 1987-04-01T03:49:54.89 10.0 negative manual PN 40 0.0225 -0.46 2.8
--.FOI.Z. 1987-04-01T03:49:54.50 10.0 undecidable manual PN 9 0.022 -0.19 1.5
--.GEN.Z. 1987-04-01T03:49:54.50 10.0 undecidable manual PN 276 0.0208 1.65 0.3
--.RBL.Z. 1987-04-01T03:49:54.00 10.0 undecidable manual PN 22 0.0222 -0.89 1
--.PS9.Z. 1987-04-01T03:49:54.50 10.0 undecidable manual SN 249 0.0113 -1.65 0.1
--.VBY.Z. 1987-04-01T03:49:54.80 10.0 undecidable manual PN 57 0.023 -1.37 1.1
--.MDI.Z. 1987-04-01T03:49:53.00 10.0 undecidable manual PN 313 0.0212 -0.39 1.4
--.ASS.Z. 1987-04-01T03:49:52.50 10.0 undecidable manual SN 161 0.0104 -1.35 0.2
--.AQU.Z. 1987-04-01T03:49:51.00 10.0 undecidable manual PN 152 0.0182 2.1 0.1
--.CEY.Z. 1987-04-01T03:49:50.30 10.0 undecidable manual PN 44 0.0201 -1.39 1
--.VOY.Z. 1987-04-01T03:49:50.30 10.0 negative manual PN 32 0.0199 -1.17 1.4
--.CO9.Z. 1987-04-01T03:49:50.50 10.0 undecidable manual PN 287 0.0182 1.7 0.3
--.CTI.Z. 1987-04-01T03:49:47.20 10.0 undecidable manual PN 348 0.0171 0.05 1.6
--.MAO.Z. 1987-04-01T03:49:47.50 10.0 undecidable manual PN 202 0.0171 0.33 1.5
--.BVT.Z. 1987-04-01T03:49:46.40 10.0 undecidable manual PN 280 0.0153 1.99 0.2
--.SAL.Z. 1987-04-01T03:49:46.50 10.0 undecidable manual PN 321 0.0165 0.22 1.5
--.ARV.Z. 1987-04-01T03:49:46.50 10.0 undecidable manual SG 139 0.0079 1.19 0.4
--.TRI.Z. 1987-04-01T03:49:45.90 10.0 undecidable manual PN 35 0.0171 -1.24 0.6
--.FIR.Z. 1987-04-01T03:49:40.00 10.0 undecidable manual SG 238 0.0069 -1.7 0.2
--.PS9.Z. 1987-04-01T03:49:37.70 10.0 undecidable manual PN 249 0.0113 -0.67 1.2
--.AM8.Z. 1987-04-01T03:49:37.90 10.0 undecidable manual PN 120 0.0108 -0.53 1.3
--.BDI.Z. 1987-04-01T03:49:36.00 10.0 undecidable manual PN 264 0.0101 -0.52 1.3
--.ASS.Z. 1987-04-01T03:49:36.00 10.0 undecidable manual PN 161 0.0104 -1.04 0.8
--.CM8.Z. 1987-04-01T03:49:36.52 10.0 undecidable manual PN 143 0.0108 -1.1 0.8
--.MME.Z. 1987-04-01T03:49:34.75 10.0 undecidable manual PG 271 0.0094 -0.5 1.4
--.CRE.Z. 1987-04-01T03:49:34.50 10.0 undecidable manual SG 195 0.0052 -1.09 0.5
--.ARV.Z. 1987-04-01T03:49:30.60 10.0 undecidable manual PG 139 0.0079 -1.51 0.4
--.PGD.Z. 1987-04-01T03:49:30.00 10.0 undecidable manual SG 226 0.0039 -1.03 0.5
--.PRO.Z. 1987-04-01T03:49:28.20 10.0 undecidable manual PG 115 0.0052 1.71 0.3
--.FIR.Z. 1987-04-01T03:49:28.50 10.0 negative manual PG 238 0.0069 -1.53 0.8
--.CRE.Z. 1987-04-01T03:49:25.30 10.0 undecidable manual PG 195 0.0052 -1.2 0.7
--.PGD.Z. 1987-04-01T03:49:23.00 10.0 undecidable manual PG 226 0.0039 -0.87 1
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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