Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 1.9 on date 03-04-1985 and time 22:22:53 (UTC) in region 1 km E Belmonte Piceno (FM)

A magnitude Md 1.9 earthquake occured in region: 1 km E Belmonte Piceno (FM), on

  • 03-04-1985 22:22:53 (UTC)
  • 04-04-1985 00:22:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0880, 13.5540 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Belmonte Piceno FM 1 646 646
Monsampietro Morico FM 2 659 1305
Montottone FM 4 979 2284
Grottazzolina FM 5 3398 5682
Monteleone di Fermo FM 5 395 6077
Montegiorgio FM 5 6851 12928
Servigliano FM 5 2336 15264
Monte Giberto FM 6 801 16065
Magliano di Tenna FM 6 1452 17517
Monte Vidon Corrado FM 7 731 18248
Falerone FM 7 3337 21585
Monte Rinaldo FM 7 379 21964
Ortezzano FM 8 774 22738
Monte Vidon Combatte FM 8 433 23171
Montelparo FM 8 778 23949
Montappone FM 9 1682 25631
Petritoli FM 9 2335 27966
Ponzano di Fermo FM 9 1674 29640
Santa Vittoria in Matenano FM 9 1330 30970
Rapagnano FM 9 2145 33115
Massa Fermana FM 9 963 34078
Penna San Giovanni MC 11 1108 35186
Monte San Martino MC 11 765 35951
Francavilla d'Ete FM 12 964 36915
Torre San Patrizio FM 12 2048 38963
Monte San Pietrangeli FM 12 2458 41421
Montalto delle Marche AP 12 2122 43543
Carassai AP 12 1100 44643
Mogliano MC 13 4696 49339
Smerillo FM 13 365 49704
Sant'Angelo in Pontano MC 13 1436 51140
Montedinove AP 13 488 51628
Monterubbiano FM 13 2230 53858
Montefalcone Appennino FM 13 424 54282
Loro Piceno MC 14 2401 56683
Moresco FM 15 598 57281
Force AP 15 1354 58635
Rotella AP 15 906 59541
Fermo FM 16 37655 97196
Cossignano AP 16 978 98174
Ripe San Ginesio MC 16 852 99026
Monte Urano FM 16 8353 107379
Petriolo MC 17 1998 109377
Montefiore dell'Aso AP 17 2123 111500
Monte San Giusto MC 17 8191 119691
Castignano AP 18 2796 122487
Montegranaro FM 18 12990 135477
Gualdo MC 18 815 136292
Lapedona FM 18 1166 137458
Colmurano MC 18 1263 138721
Corridonia MC 18 15430 154151
Comunanza AP 18 3166 157317
Urbisaglia MC 19 2628 159945
Sant'Elpidio a Mare FM 19 17110 177055
San Ginesio MC 19 3498 180553
Ripatransone AP 20 4309 184862
Altidona FM 20 3390 188252
Amandola FM 20 3629 191881

Municipalities with at least 50000 inhabitants

An earthquake occurred to
49 Km N of Teramo (54892 inhabitants)
59 Km S of Ancona (100861 inhabitants)
71 Km E of Foligno (57155 inhabitants)
80 Km NW of Montesilvano (53738 inhabitants)
83 Km N of L'Aquila (69753 inhabitants)
88 Km NW of Pescara (121014 inhabitants)
94 Km NE of Terni (111501 inhabitants)
95 Km SE of Fano (60888 inhabitants)
95 Km E of Perugia (166134 inhabitants)
96 Km NW 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
Bulletin
Rev1000 		Md 1.9 1985-04-03
22:22:53		 43.088 13.554 10 2013-07-15
08:41:04		 Bollettino Sismico Italiano INGV 3999
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-04-03 22:22:53 ± 0.368
Latitude 43.0880 ± 0.0166
Longitude 13.5540 ± 0.0380
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 3999

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) 3594.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 173
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00275
Epicentral distance of station farthest from the epicenter (degree) 0.00591
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:1.9

Field Value
Value 1.9
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 3999
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:08:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.AS1.Z. 1985-04-03T22:23:17.00 10.0 undecidable manual SG 268 0.6549 0.05 0.7
--.AR1.Z. 1985-04-03T22:23:14.00 10.0 undecidable manual SG 312 0.5994 -1.24 0.1
--.AM1.Z. 1985-04-03T22:23:12.30 10.0 undecidable manual SG 4 0.4551 1.6 0.1
--.AS1.Z. 1985-04-03T22:23:08.00 10.0 undecidable manual PG 268 0.6549 0.8 0.9
--.AR1.Z. 1985-04-03T22:23:06.00 10.0 undecidable manual PG 312 0.5994 -0.22 1.7
--.ALP.Z. 1985-04-03T22:23:05.40 10.0 undecidable manual SG 178 0.3108 -0.27 1.1
--.AM1.Z. 1985-04-03T22:23:03.00 10.0 undecidable manual PG 4 0.4551 -0.59 1.4
--.ALP.Z. 1985-04-03T22:23:00.70 10.0 undecidable manual PG 178 0.3108 0.02 2
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