Earthquake with magnitude of Md 1.8 on date 08-09-1985 and time 12:11:45 (Italy) in region 2 km SE Montelparo (FM)

A magnitude Md 1.8 earthquake occured in region: 2 km SE Montelparo (FM), on

  • 08-09-1985 10:11:45 (UTC)
  • 08-09-1985 12:11:45 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0050, 13.5590 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
Montelparo FM 2 778 778
Monte Rinaldo FM 3 379 1157
Montedinove AP 4 488 1645
Montalto delle Marche AP 4 2122 3767
Ortezzano FM 5 774 4541
Santa Vittoria in Matenano FM 5 1330 5871
Monteleone di Fermo FM 5 395 6266
Rotella AP 6 906 7172
Montottone FM 7 979 8151
Force AP 7 1354 9505
Monsampietro Morico FM 7 659 10164
Monte Vidon Combatte FM 8 433 10597
Montefalcone Appennino FM 8 424 11021
Castignano AP 9 2796 13817
Smerillo FM 9 365 14182
Belmonte Piceno FM 10 646 14828
Monte San Martino MC 10 765 15593
Servigliano FM 10 2336 17929
Petritoli FM 11 2335 20264
Carassai AP 11 1100 21364
Cossignano AP 11 978 22342
Monte Giberto FM 11 801 23143
Grottazzolina FM 12 3398 26541
Penna San Giovanni MC 12 1108 27649
Comunanza AP 13 3166 30815
Offida AP 13 5058 35873
Falerone FM 13 3337 39210
Ponzano di Fermo FM 14 1674 40884
Montegiorgio FM 14 6851 47735
Palmiano AP 14 196 47931
Monte Vidon Corrado FM 14 731 48662
Appignano del Tronto AP 15 1785 50447
Venarotta AP 15 2066 52513
Magliano di Tenna FM 15 1452 53965
Monterubbiano FM 16 2230 56195
Montappone FM 16 1682 57877
Montefiore dell'Aso AP 17 2123 60000
Ripatransone AP 17 4309 64309
Amandola FM 17 3629 67938
Moresco FM 17 598 68536
Ascoli Piceno AP 17 49407 117943
Sant'Angelo in Pontano MC 17 1436 119379
Roccafluvione AP 17 2010 121389
Massa Fermana FM 18 963 122352
Rapagnano FM 18 2145 124497
Castorano AP 18 2380 126877
Montefortino FM 19 1178 128055
Gualdo MC 19 815 128870
Castel di Lama AP 20 8634 137504

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km NW of Teramo (54892 inhabitants)
68 Km S of Ancona (100861 inhabitants)
70 Km E of Foligno (57155 inhabitants)
73 Km NW of Montesilvano (53738 inhabitants)
74 Km N of L'Aquila (69753 inhabitants)
80 Km NW of Pescara (121014 inhabitants)
88 Km NW of Chieti (51815 inhabitants)
89 Km NE of Terni (111501 inhabitants)
96 Km E of Perugia (166134 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 1.8 1985-09-08
10:11:45
43.005 13.559 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 12899
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-09-08 10:11:45 ± 0.411
Latitude 43.0050 ± 0.0185
Longitude 13.5590 ± 0.0445
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 12899

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) 4160.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 175
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
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) 0.00202
Epicentral distance of station farthest from the epicenter (degree) 0.00486
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitude information

Md:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 12899
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:16:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.AM1.Z. 1985-09-08T10:12:06.00 10.0 undecidable manual SG 3 0.5439 1.22 0
--.CM2.Z. 1985-09-08T10:11:58.50 10.0 undecidable manual SG 301 0.3552 -0.22 1
--.AM1.Z. 1985-09-08T10:11:55.80 10.0 undecidable manual PG 3 0.5439 -0.76 0.6
--.ALP.Z. 1985-09-08T10:11:54.30 10.0 undecidable manual SG 178 0.222 -0.18 1
--.CM2.Z. 1985-09-08T10:11:53.30 10.0 undecidable manual PG 301 0.3552 0.23 1.7
--.ALP.Z. 1985-09-08T10:11:50.90 10.0 undecidable manual PG 178 0.222 0.28 1.6
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