Earthquake with magnitude of Md 4.0 on date 04-09-1987 and time 16:42:50 (UTC) in region Costa Marchigiana Fermana (Fermo)

A magnitude Md 4.0 earthquake occured in region: Costa Marchigiana Fermana (Fermo), on

  • 04-09-1987 16:42:50 (UTC)
  • 04-09-1987 18:42:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.21, 13.85 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
Porto San Giorgio FM 5 16121 16121
Porto Sant'Elpidio FM 9 26152 42273
Fermo FM 12 37655 79928
Altidona FM 12 3390 83318
Pedaso FM 12 2800 86118
Lapedona FM 12 1166 87284
Sant'Elpidio a Mare FM 13 17110 104394
Monte Urano FM 14 8353 112747
Campofilone FM 15 1916 114663
Civitanova Marche MC 15 41983 156646
Moresco FM 16 598 157244
Monterubbiano FM 17 2230 159474
Montegranaro FM 17 12990 172464
Massignano AP 18 1638 174102
Montefiore dell'Aso AP 19 2123 176225
Ponzano di Fermo FM 19 1674 177899
Torre San Patrizio FM 19 2048 179947

Municipalities with at least 50000 inhabitants

An earthquake occurred to
53 Km SE of Ancona (100861 inhabitants)
62 Km N of Teramo (54892 inhabitants)
81 Km NW of Montesilvano (53738 inhabitants)
88 Km NW of Pescara (121014 inhabitants)
97 Km E of Foligno (57155 inhabitants)
97 Km SE of Fano (60888 inhabitants)
99 Km N of Chieti (51815 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 4.0
ML-VAX 4.3
1987-09-04
16:42:50
43.21 13.85 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 54709
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-09-04 16:42:50 ± 0.096
Latitude 43.21 ± 0.01
Longitude 13.85 ± 0.01
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 54709

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) 1599.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 47
Number of associated phases, regardless of their use for origin computation 110
Number of defining phases 110
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) 0.00283
Epicentral distance of station farthest from the epicenter (degree) 0.06233
Number of stations at which the event was observed 103
Number of stations from which data was used for origin computation 103
Magnitudes information

Md:4

Field Value
Value 4
Uncertainty
Num. used stations 11
Type of magnitude Md
Reference to an origin 54709
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:52:43

ML:4.3

Field Value
Value 4.3
Uncertainty
Num. used stations 8
Type of magnitude ML
Reference to an origin 54709
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
--.CDF.Z. 1987-09-04T16:45:46.20 10.0 undecidable manual SN 320 0.0623 0.4 0.3
--.BSF.Z. 1987-09-04T16:45:41.70 10.0 undecidable manual SN 315 0.0608 -0.2 0.4
--.ULC.Z. 1987-09-04T16:44:41.00 10.0 undecidable manual SN 105 0.0375 0.8 0.4
--.TTG.Z. 1987-09-04T16:44:39.00 10.0 undecidable manual SN 99 0.0363 1.69 0.2
--.BDV.Z. 1987-09-04T16:44:32.60 10.0 undecidable manual SN 102 0.0339 1.79 0.1
--.CDF.Z. 1987-09-04T16:44:31.40 10.0 undecidable manual PN 320 0.0623 -0.38 0.9
--.BSF.Z. 1987-09-04T16:44:29.00 10.0 undecidable manual PN 315 0.0608 -0.52 0.8
--.VAY.Z. 1987-09-04T16:44:28.70 10.0 undecidable manual PN 103 0.0605 -0.26 0.9
--.HCY.Z. 1987-09-04T16:44:26.20 10.0 undecidable manual SN 100 0.0314 1.99 0.1
--.SLE.Z. 1987-09-04T16:44:17.50 10.0 undecidable manual PN 322 0.053 -0.18 1
--.ZLA.Z. 1987-09-04T16:44:15.70 10.0 undecidable manual PN 319 0.0516 0.13 1
--.SKO.Z. 1987-09-04T16:44:15.50 10.0 undecidable manual PN 99 0.0515 0.26 1
--.LRG.Z. 1987-09-04T16:44:13.20 10.0 undecidable manual PN 274 0.049 1.74 0.2
--.LPL.Z. 1987-09-04T16:44:12.70 10.0 undecidable manual PN 296 0.0502 -0.6 0.9
--.LPG.Z. 1987-09-04T16:44:12.30 10.0 undecidable manual PN 296 0.05 -0.73 0.8
--.LMR.Z. 1987-09-04T16:44:11.30 10.0 undecidable manual PN 273 0.048 1.31 0.5
--.DIX.Z. 1987-09-04T16:44:11.00 10.0 undecidable manual PN 304 0.0486 0.16 1.1
--.BNI.Z. 1987-09-04T16:44:11.93 10.0 undecidable manual PN 292 0.0491 0.27 1
--.RRL.Z. 1987-09-04T16:44:10.30 10.0 undecidable manual PN 290 0.0481 0.14 1.1
--.FRF.Z. 1987-09-04T16:44:10.20 10.0 undecidable manual PN 276 0.0471 1.57 0.3
--.ATN.Z. 1987-09-04T16:44:08.27 10.0 undecidable manual PN 165 0.0467 0.25 1.1
--.SAX.Z. 1987-09-04T16:44:08.60 10.0 undecidable manual PN 323 0.0461 1.43 0.4
--.ERC.Z. 1987-09-04T16:44:07.61 10.0 undecidable manual PN 190 0.0473 -1.26 0.5
--.LLS.Z. 1987-09-04T16:44:06.20 10.0 undecidable manual PN 318 0.0448 0.99 0.7
--.RSP.Z. 1987-09-04T16:44:05.90 10.0 undecidable manual PN 294 0.0459 -0.88 0.7
--.STV.Z. 1987-09-04T16:44:04.40 10.0 undecidable manual PN 284 0.0433 1.55 0.3
--.MMK.Z. 1987-09-04T16:44:04.80 10.0 undecidable manual PN 306 0.0455 -1.3 0.5
--.GRI.Z. 1987-09-04T16:44:02.32 10.0 undecidable manual PN 155 0.0431 -0.21 1.1
--.ORX.Z. 1987-09-04T16:44:01.90 10.0 undecidable manual PN 301 0.0435 -1.18 0.6
--.PVY.Z. 1987-09-04T16:44:00.20 10.0 undecidable manual PN 95 0.0407 1.35 0.9
--.IVA.Z. 1987-09-04T16:43:59.10 10.0 positive manual PN 92 0.0398 1.54 0.7
--.VDL.Z. 1987-09-04T16:43:59.60 10.0 undecidable manual PN 317 0.0406 0.99 0.7
--.TMA.Z. 1987-09-04T16:43:59.50 10.0 undecidable manual PN 310 0.0411 0.07 1.2
--.OSS.Z. 1987-09-04T16:43:58.00 10.0 undecidable manual PN 324 0.0391 1.55 0.4
--.ROB.Z. 1987-09-04T16:43:58.60 10.0 undecidable manual PN 286 0.04 0.85 0.8
--.CZI.Z. 1987-09-04T16:43:56.50 10.0 undecidable manual PN 155 0.039 0.16 1.2
--.LCI.Z. 1987-09-04T16:43:54.42 10.0 undecidable manual PN 130 0.0385 -1.13 0.6
--.CKI.Z. 1987-09-04T16:43:54.93 10.0 undecidable manual PN 288 0.0377 0.67 1
--.ROI.Z. 1987-09-04T16:43:53.80 10.0 undecidable manual PN 149 0.0375 -0.14 1.2
--.ULC.Z. 1987-09-04T16:43:53.20 10.0 positive manual PN 105 0.0375 -0.7 1.9
--.PLE.Z. 1987-09-04T16:43:53.40 10.0 undecidable manual PN 86 0.0363 1.25 1.1
--.TDS.Z. 1987-09-04T16:43:52.60 10.0 undecidable manual PN 151 0.036 0.87 0.9
--.TTG.Z. 1987-09-04T16:43:52.00 10.0 undecidable manual PN 99 0.0363 -0.23 2.5
--.MDI.Z. 1987-09-04T16:43:50.20 10.0 undecidable manual PN 312 0.0351 -0.16 1.3
--.CVF.Z. 1987-09-04T16:43:49.10 10.0 undecidable manual PN 261 0.0333 1.61 0.4
--.CSI.Z. 1987-09-04T16:43:49.40 10.0 undecidable manual PN 150 0.0349 -0.61 1.1
--.GEN.Z. 1987-09-04T16:43:49.30 10.0 undecidable manual PN 290 0.0336 1.27 0.6
--.BDV.Z. 1987-09-04T16:43:48.20 10.0 positive manual PN 102 0.0339 -0.28 2.5
--.MMN.Z. 1987-09-04T16:43:48.80 10.0 undecidable manual PN 153 0.0331 1.51 0.4
--.ORI.Z. 1987-09-04T16:43:48.30 10.0 undecidable manual PN 147 0.0334 0.45 1.2
--.BOB.Z. 1987-09-04T16:43:47.28 10.0 undecidable manual PN 297 0.0317 2.19 0.1
--.VEA.Z. 1987-09-04T16:43:46.80 10.0 undecidable manual PN 300 0.0312 2.47 0.1
--.PE1.Z. 1987-09-04T16:43:45.50 10.0 undecidable manual PN 130 0.0322 -0.38 1.3
--.CAV.Z. 1987-09-04T16:43:45.20 10.0 undecidable manual PN 331 0.0316 0.23 1.3
--.RNI.Z. 1987-09-04T16:43:45.90 10.0 undecidable manual PN 321 0.0322 -0.05 1.3
--.SAR.Z. 1987-09-04T16:43:44.60 10.0 undecidable manual PN 76 0.0304 1.42 0.5
--.BRY.Z. 1987-09-04T16:43:44.00 10.0 positive manual PN 93 0.0309 0.01 2.7
--.HCY.Z. 1987-09-04T16:43:44.20 10.0 undecidable manual PN 100 0.0314 -0.47 1.2
--.ZOU.Z. 1987-09-04T16:43:43.10 10.0 undecidable manual PN 349 0.0306 -0.31 1.3
--.FOA.Z. 1987-09-04T16:43:43.80 10.0 undecidable manual PN 347 0.0311 -0.4 1.2
--.SAL.Z. 1987-09-04T16:43:43.27 10.0 undecidable manual PN 316 0.0303 0.29 1.3
--.BVT.Z. 1987-09-04T16:43:42.40 10.0 undecidable manual PN 294 0.0285 2.2 0.1
--.BRT.Z. 1987-09-04T16:43:41.93 10.0 undecidable manual PN 132 0.0304 -1.24 0.6
--.CTI.Z. 1987-09-04T16:43:41.11 10.0 positive manual PN 331 0.0291 -0.05 2.7
--.DDS.Z. 1987-09-04T16:43:41.80 10.0 undecidable manual PN 325 0.0294 0.18 1.3
--.MGR.Z. 1987-09-04T16:43:41.53 10.0 undecidable manual PN 156 0.0299 -0.81 1
--.ERT.Z. 1987-09-04T16:43:40.60 10.0 undecidable manual PN 341 0.0291 -0.56 1.2
--.RBL.Z. 1987-09-04T16:43:40.42 10.0 negative manual PN 356 0.0291 -0.71 2.1
--.BOO.Z. 1987-09-04T16:43:39.10 10.0 undecidable manual PN 350 0.0283 -0.9 0.9
--.RCL.Z. 1987-09-04T16:43:38.40 10.0 undecidable manual PN 344 0.0276 -0.43 1.2
--.BUA.Z. 1987-09-04T16:43:38.10 10.0 undecidable manual PN 350 0.0274 -0.49 1.2
--.PTJ.Z. 1987-09-04T16:43:38.40 10.0 positive manual PN 28 0.0278 -0.79 2
--.BAD.Z. 1987-09-04T16:43:38.00 10.0 undecidable manual PN 351 0.0274 -0.66 1.1
--.ZAG.Z. 1987-09-04T16:43:37.40 10.0 positive manual PN 29 0.0273 -0.95 1.7
--.CAE.Z. 1987-09-04T16:43:37.20 10.0 undecidable manual PN 340 0.0267 -0.29 1.3
--.DRE.Z. 1987-09-04T16:43:36.50 10.0 undecidable manual PN 357 0.0266 -0.93 0.9
--.LJU.Z. 1987-09-04T16:43:35.80 10.0 undecidable manual PN 9 0.0258 -0.37 1.3
--.SGO.Z. 1987-09-04T16:43:35.23 10.0 undecidable manual PN 157 0.0257 -0.78 1
--.VOY.Z. 1987-09-04T16:43:34.70 10.0 undecidable manual PN 0 0.0253 -0.74 1
--.TAL.Z. 1987-09-04T16:43:34.00 10.0 negative manual PN 349 0.0249 -0.63 2.2
--.CDM.Z. 1987-09-04T16:43:32.50 10.0 positive manual PN! 138 0.0251 -2.48 0
--.SOR.Z. 1987-09-04T16:43:32.60 10.0 undecidable manual PN 171 0.0238 -0.49 1.2
--.OVO.Z. 1987-09-04T16:43:31.00 10.0 undecidable manual PN 169 0.0217 1.13 0.7
--.PII.Z. 1987-09-04T16:43:31.52 10.0 undecidable manual PN 282 0.0221 1 0.8
--.BDI.Z. 1987-09-04T16:43:31.60 10.0 undecidable manual PN 290 0.0224 0.58 1.1
--.CEY.Z. 1987-09-04T16:43:31.10 10.0 undecidable manual PN 8 0.023 -0.78 1
--.MME.Z. 1987-09-04T16:43:31.58 10.0 undecidable manual PN 294 0.0223 0.88 0.9
--.VBY.Z. 1987-09-04T16:43:30.70 10.0 undecidable manual PN 23 0.0225 -0.41 1.2
--.TRI.Z. 1987-09-04T16:43:29.95 10.0 undecidable manual PN 358 0.0224 -1.07 0.8
--.FG4.Z. 1987-09-04T16:43:28.92 10.0 undecidable manual PN 148 0.0217 -0.97 0.8
--.MAO.Z. 1987-09-04T16:43:26.39 10.0 undecidable manual PN 248 0.0191 0.49 1.2
--.MS1.Z. 1987-09-04T16:43:24.00 10.0 positive manual PN! 133 0.0193 -2.3 0
--.FIR.Z. 1987-09-04T16:43:23.50 10.0 undecidable manual PN 287 0.0176 -0.13 1.3
--.SGG.Z. 1987-09-04T16:43:22.00 10.0 positive manual PN 167 0.0168 -0.29 2.6
--.PGD.Z. 1987-09-04T16:43:21.50 10.0 undecidable manual PN 293 0.0151 1.77 0.3
--.SS9.Z. 1987-09-04T16:43:19.32 10.0 undecidable manual PN 296 0.0144 0.52 1.2
--.FG2.Z. 1987-09-04T16:43:19.55 10.0 negative manual PN 144 0.0153 -0.57 2.3
--.RMP.Z. 1987-09-04T16:43:19.45 10.0 undecidable manual PN 211 0.0147 0.35 1.3
--.DUI.Z. 1987-09-04T16:43:18.29 10.0 undecidable manual PN 163 0.0145 -0.57 1.1
--.CRE.Z. 1987-09-04T16:43:17.28 10.0 undecidable manual PN 287 0.0129 0.87 0.9
--.CP9.Z. 1987-09-04T16:43:17.76 10.0 undecidable manual PN 206 0.0134 0.48 1.2
--.SDI.Z. 1987-09-04T16:43:16.84 10.0 undecidable manual PN 180 0.0134 -0.45 1.2
--.AQU.Z. 1987-09-04T16:43:08.50 10.0 undecidable manual PG 200 0.0082 -0.21 1.3
--.ASS.Z. 1987-09-04T16:43:06.73 10.0 negative manual PG 260 0.0079 -1.39 1
--.ARV.Z. 1987-09-04T16:43:04.00 10.0 undecidable manual PG 293 0.0064 -1.04 0.8
--.MC8.Z. 1987-09-04T16:43:03.68 10.0 undecidable manual SG 285 0.0028 0.79 0.6
--.CM8.Z. 1987-09-04T16:43:00.15 10.0 negative manual PG 268 0.0045 -1.09 1.5
--.ALP.Z. 1987-09-04T16:42:58.21 10.0 negative manual PG 205 0.0042 -2.34 0.2
--.MC8.Z. 1987-09-04T16:42:57.62 10.0 negative manual PG 285 0.0028 -0.1 2.7
--.AM8.Z. 1987-09-04T16:42:56.84 10.0 positive manual PG 332 0.0034 -2.03 0.3
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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Type Description Link
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