Earthquake with magnitude of Md 2.5 on date 21-10-1990 and time 14:44:22 (Italy) in region 3 km SE Montelparo (FM)

A magnitude Md 2.5 earthquake occured in region: 3 km SE Montelparo (FM), on

  • 21-10-1990 13:44:22 (UTC)
  • 21-10-1990 14:44:22 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.99, 13.55 at 5 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 3 778 778
Montedinove AP 4 488 1266
Rotella AP 4 906 2172
Montalto delle Marche AP 5 2122 4294
Monte Rinaldo FM 5 379 4673
Santa Vittoria in Matenano FM 5 1330 6003
Force AP 6 1354 7357
Ortezzano FM 6 774 8131
Monteleone di Fermo FM 6 395 8526
Montefalcone Appennino FM 8 424 8950
Montottone FM 8 979 9929
Castignano AP 8 2796 12725
Monsampietro Morico FM 8 659 13384
Smerillo FM 9 365 13749
Monte Vidon Combatte FM 9 433 14182
Monte San Martino MC 10 765 14947
Servigliano FM 11 2336 17283
Belmonte Piceno FM 11 646 17929
Cossignano AP 11 978 18907
Carassai AP 12 1100 20007
Comunanza AP 12 3166 23173
Petritoli FM 12 2335 25508
Penna San Giovanni MC 13 1108 26616
Palmiano AP 13 196 26812
Monte Giberto FM 13 801 27613
Offida AP 13 5058 32671
Venarotta AP 13 2066 34737
Grottazzolina FM 14 3398 38135
Appignano del Tronto AP 14 1785 39920
Falerone FM 14 3337 43257
Ponzano di Fermo FM 15 1674 44931
Montegiorgio FM 15 6851 51782
Monte Vidon Corrado FM 15 731 52513
Ascoli Piceno AP 16 49407 101920
Roccafluvione AP 16 2010 103930
Amandola FM 16 3629 107559
Magliano di Tenna FM 17 1452 109011
Monterubbiano FM 17 2230 111241
Ripatransone AP 17 4309 115550
Montappone FM 17 1682 117232
Sant'Angelo in Pontano MC 17 1436 118668
Montefiore dell'Aso AP 18 2123 120791
Castorano AP 18 2380 123171
Montefortino FM 18 1178 124349
Moresco FM 18 598 124947
Massa Fermana FM 19 963 125910
Castel di Lama AP 19 8634 134544
Rapagnano FM 19 2145 136689
Gualdo MC 19 815 137504

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km NW of Teramo (54892 inhabitants)
69 Km E of Foligno (57155 inhabitants)
70 Km S of Ancona (100861 inhabitants)
72 Km NW of Montesilvano (53738 inhabitants)
72 Km N of L'Aquila (69753 inhabitants)
80 Km NW of Pescara (121014 inhabitants)
87 Km NW of Chieti (51815 inhabitants)
88 Km NE of Terni (111501 inhabitants)
95 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 2.5
ML-VAX 1.7
1990-10-21
13:44:22
42.99 13.55 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 129179
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-10-21 13:44:22 ± 0.37
Latitude 42.99 ± 0.01
Longitude 13.55 ± 0.03
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 129179

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) 2746.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 167
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.8
Epicentral distance of station closest to the epicenter (degree) 0.00227
Epicentral distance of station farthest from the epicenter (degree) 0.01433
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 129179
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:00:06

ML:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 129179
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
--.SDI.Z. 1990-10-21T13:45:04.24 10.0 undecidable manual SN 171 0.0117 -1.28 0.3
--.MNS.Z. 1990-10-21T13:44:53.75 10.0 undecidable manual SG 226 0.0079 -0.28 0.7
--.SFI.Z. 1990-10-21T13:44:52.68 10.0 undecidable manual PN 306 0.0138 1.93 0.2
--.PGD.Z. 1990-10-21T13:44:52.00 10.0 undecidable manual PN 303 0.0143 0.44 1.2
--.CRE.Z. 1990-10-21T13:44:48.00 10.0 undecidable manual PN 298 0.0118 0.18 1.4
--.ARV.Z. 1990-10-21T13:44:47.90 10.0 undecidable manual SG 318 0.006 -0.18 0.8
--.ASS.Z. 1990-10-21T13:44:47.86 10.0 undecidable manual SG 276 0.0059 0.95 0.5
--.SDI.Z. 1990-10-21T13:44:46.70 10.0 undecidable manual PN 171 0.0117 -1.41 0.6
--.AQU.Z. 1990-10-21T13:44:45.68 10.0 undecidable manual SG 189 0.0058 -0.83 0.6
--.AZI.Z. 1990-10-21T13:44:44.50 10.0 undecidable manual PG 184 0.0091 1.3 0.8
--.AOI.Z. 1990-10-21T13:44:43.90 10.0 undecidable manual SG 3 0.0049 0.32 1.1
--.MNS.Z. 1990-10-21T13:44:39.46 10.0 undecidable manual PG 226 0.0079 -1.39 0.7
--.AQU.Z. 1990-10-21T13:44:38.50 10.0 undecidable manual PG 189 0.0058 1.55 0.6
--.ARV.Z. 1990-10-21T13:44:37.56 10.0 undecidable manual PG 318 0.006 0.61 1.6
--.ASS.Z. 1990-10-21T13:44:36.56 10.0 undecidable manual PG 276 0.0059 -0.18 1.9
--.CIO.Z. 1990-10-21T13:44:36.40 10.0 undecidable manual SG 304 0.0032 -0.39 1.1
--.AOI.Z. 1990-10-21T13:44:33.70 10.0 undecidable manual PG 3 0.0049 -1.11 1.1
--.RM8.Z. 1990-10-21T13:44:32.69 10.0 undecidable manual SG 261 0.0023 -0.06 0.8
--.CIO.Z. 1990-10-21T13:44:29.90 10.0 undecidable manual PG 304 0.0032 -0.99 2.4
--.RM8.Z. 1990-10-21T13:44:28.17 10.0 undecidable manual PG 261 0.0023 -0.39 1.8
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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