Earthquake with magnitude of Md 2.4 on date 21-10-1990 and time 03:43:28 (Italy) in region 2 km E Montelparo (FM)

A magnitude Md 2.4 earthquake occured in region: 2 km E Montelparo (FM), on

  • 21-10-1990 02:43:28 (UTC)
  • 21-10-1990 03:43:28 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.0170, 13.5620 at 6 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
Monte Rinaldo FM 2 379 379
Montelparo FM 2 778 1157
Ortezzano FM 4 774 1931
Monteleone di Fermo FM 4 395 2326
Montalto delle Marche AP 5 2122 4448
Santa Vittoria in Matenano FM 5 1330 5778
Montedinove AP 6 488 6266
Montottone FM 6 979 7245
Monsampietro Morico FM 6 659 7904
Monte Vidon Combatte FM 7 433 8337
Rotella AP 7 906 9243
Force AP 8 1354 10597
Belmonte Piceno FM 9 646 11243
Montefalcone Appennino FM 9 424 11667
Servigliano FM 9 2336 14003
Smerillo FM 10 365 14368
Petritoli FM 10 2335 16703
Monte San Martino MC 10 765 17468
Castignano AP 10 2796 20264
Carassai AP 10 1100 21364
Monte Giberto FM 10 801 22165
Cossignano AP 11 978 23143
Grottazzolina FM 11 3398 26541
Penna San Giovanni MC 12 1108 27649
Falerone FM 12 3337 30986
Ponzano di Fermo FM 12 1674 32660
Montegiorgio FM 13 6851 39511
Monte Vidon Corrado FM 13 731 40242
Comunanza AP 14 3166 43408
Magliano di Tenna FM 14 1452 44860
Offida AP 14 5058 49918
Monterubbiano FM 15 2230 52148
Montappone FM 15 1682 53830
Palmiano AP 15 196 54026
Appignano del Tronto AP 16 1785 55811
Montefiore dell'Aso AP 16 2123 57934
Moresco FM 16 598 58532
Venarotta AP 16 2066 60598
Sant'Angelo in Pontano MC 16 1436 62034
Rapagnano FM 16 2145 64179
Massa Fermana FM 17 963 65142
Ripatransone AP 17 4309 69451
Amandola FM 17 3629 73080
Ascoli Piceno AP 18 49407 122487
Roccafluvione AP 19 2010 124497
Castorano AP 19 2380 126877
Gualdo MC 19 815 127692
Torre San Patrizio FM 19 2048 129740
Francavilla d'Ete FM 20 964 130704
Massignano AP 20 1638 132342
Monte San Pietrangeli FM 20 2458 134800
Montefortino FM 20 1178 135978
Mogliano MC 20 4696 140674

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km N of Teramo (54892 inhabitants)
67 Km S of Ancona (100861 inhabitants)
70 Km E of Foligno (57155 inhabitants)
74 Km NW of Montesilvano (53738 inhabitants)
75 Km N of L'Aquila (69753 inhabitants)
81 Km NW of Pescara (121014 inhabitants)
89 Km NW of Chieti (51815 inhabitants)
90 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 2.4 1990-10-21
02:43:28
43.017 13.562 6 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 129139
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-10-21 02:43:28 ± 0.759
Latitude 43.0170 ± 0.0205
Longitude 13.5620 ± 0.0427
Depth (km) 6 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 129139

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) 4156.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 268
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00235
Epicentral distance of station farthest from the epicenter (degree) 0.01182
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 129139
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:00:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.MNS.Z. 1990-10-21T02:44:01.27 10.0 undecidable manual SG 225 0.8991 0.71 0.4
--.CRE.Z. 1990-10-21T02:43:54.50 10.0 undecidable manual PN 297 1.3098 0.89 0.5
--.ASS.Z. 1990-10-21T02:43:53.28 10.0 undecidable manual SG 274 0.666 0.37 0.7
--.ARV.Z. 1990-10-21T02:43:51.28 10.0 undecidable manual SG 316 0.6549 -1.42 0.1
--.MNS.Z. 1990-10-21T02:43:46.40 10.0 undecidable manual PG 225 0.8991 -1.09 0.5
--.ARV.Z. 1990-10-21T02:43:43.14 10.0 undecidable manual PG 316 0.6549 0.55 1.4
--.CIO.Z. 1990-10-21T02:43:42.50 10.0 undecidable manual SG 300 0.3552 -0.01 0.8
--.ASS.Z. 1990-10-21T02:43:42.78 10.0 undecidable manual PG 274 0.666 0.07 2
--.RM8.Z. 1990-10-21T02:43:39.40 10.0 undecidable manual SG 256 0.2553 0.22 0.8
--.CIO.Z. 1990-10-21T02:43:36.25 10.0 undecidable manual PG 300 0.3552 -0.46 1.7
--.RM8.Z. 1990-10-21T02:43:34.84 10.0 undecidable manual PG 256 0.2553 0.06 2.1
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