Earthquake with magnitude of Md 2.3 on date 05-10-1987 and time 08:43:20 (Italy) in region SE Montottone (FM)

A magnitude Md 2.3 earthquake occured in region: SE Montottone (FM), on

  • 05-10-1987 07:43:20 (UTC)
  • 05-10-1987 08:43:20 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.0600, 13.5890 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
Montottone FM 0 979 979
Monsampietro Morico FM 3 659 1638
Ortezzano FM 3 774 2412
Monte Rinaldo FM 4 379 2791
Monte Vidon Combatte FM 4 433 3224
Monte Giberto FM 5 801 4025
Monteleone di Fermo FM 5 395 4420
Belmonte Piceno FM 5 646 5066
Petritoli FM 6 2335 7401
Grottazzolina FM 6 3398 10799
Montelparo FM 6 778 11577
Ponzano di Fermo FM 8 1674 13251
Montalto delle Marche AP 8 2122 15373
Servigliano FM 8 2336 17709
Carassai AP 8 1100 18809
Santa Vittoria in Matenano FM 9 1330 20139
Magliano di Tenna FM 9 1452 21591
Montegiorgio FM 9 6851 28442
Montedinove AP 10 488 28930
Falerone FM 11 3337 32267
Monterubbiano FM 11 2230 34497
Monte Vidon Corrado FM 11 731 35228
Rapagnano FM 11 2145 37373
Cossignano AP 12 978 38351
Rotella AP 12 906 39257
Moresco FM 12 598 39855
Monte San Martino MC 13 765 40620
Montappone FM 13 1682 42302
Smerillo FM 13 365 42667
Montefalcone Appennino FM 13 424 43091
Montefiore dell'Aso AP 13 2123 45214
Force AP 13 1354 46568
Penna San Giovanni MC 13 1108 47676
Massa Fermana FM 14 963 48639
Castignano AP 14 2796 51435
Torre San Patrizio FM 14 2048 53483
Monte San Pietrangeli FM 15 2458 55941
Francavilla d'Ete FM 15 964 56905
Fermo FM 16 37655 94560
Ripatransone AP 16 4309 98869
Lapedona FM 16 1166 100035
Offida AP 16 5058 105093
Sant'Angelo in Pontano MC 16 1436 106529
Mogliano MC 17 4696 111225
Massignano AP 17 1638 112863
Altidona FM 18 3390 116253
Monte Urano FM 18 8353 124606
Comunanza AP 18 3166 127772
Loro Piceno MC 18 2401 130173
Campofilone FM 19 1916 132089
Appignano del Tronto AP 19 1785 133874
Monte San Giusto MC 20 8191 142065
Montegranaro FM 20 12990 155055

Municipalities with at least 50000 inhabitants

An earthquake occurred to
46 Km N of Teramo (54892 inhabitants)
62 Km S of Ancona (100861 inhabitants)
73 Km E of Foligno (57155 inhabitants)
76 Km NW of Montesilvano (53738 inhabitants)
80 Km N of L'Aquila (69753 inhabitants)
84 Km NW of Pescara (121014 inhabitants)
92 Km NW of Chieti (51815 inhabitants)
95 Km NE of Terni (111501 inhabitants)
98 Km E of Perugia (166134 inhabitants)
99 Km SE of Fano (60888 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 2.3 1987-10-05
07:43:20
43.06 13.589 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 56509
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-10-05 07:43:20 ± 0.31
Latitude 43.0600 ± 0.0156
Longitude 13.5890 ± 0.0536
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 56509

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) 4688.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 182
Number of associated phases, regardless of their use for origin computation 5
Number of defining phases 5
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) 0.00235
Epicentral distance of station farthest from the epicenter (degree) 0.00437
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 56509
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:54:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.MC8.Z. 1987-10-05T07:43:32.10 10.0 undecidable manual SG 332 0.2553 0.88 0.1
--.AM8.Z. 1987-10-05T07:43:30.77 10.0 negative manual PG 0 0.4884 -0.23 2
--.CM8.Z. 1987-10-05T07:43:27.84 10.0 undecidable manual PG 292 0.3552 -0.61 0.5
--.MC8.Z. 1987-10-05T07:43:27.50 10.0 undecidable manual PG 332 0.2553 0.22 1.3
--.ALP.Z. 1987-10-05T07:43:27.43 10.0 undecidable manual PG 183 0.2775 0.31 1.1
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download