Earthquake with magnitude of Md 2.2 on date 15-10-1990 and time 04:48:27 (Italy) in region 3 km SW Montegallo (AP)

A magnitude Md 2.2 earthquake occured in region: 3 km SW Montegallo (AP), on

  • 15-10-1990 03:48:27 (UTC)
  • 15-10-1990 04:48:27 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8200, 13.3130 at 4 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
Montegallo AP 3 523 523
Arquata del Tronto AP 5 1178 1701
Montemonaco AP 9 604 2305
Acquasanta Terme AP 10 2916 5221
Montefortino FM 14 1178 6399
Roccafluvione AP 14 2010 8409
Accumoli RI 15 667 9076
Palmiano AP 15 196 9272
Castelsantangelo sul Nera MC 15 281 9553
Venarotta AP 16 2066 11619
Comunanza AP 18 3166 14785
Valle Castellana TE 18 977 15762
Norcia PG 18 4957 20719
Amandola FM 18 3629 24348
Ussita MC 20 444 24792

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km W of Teramo (54892 inhabitants)
52 Km E of Foligno (57155 inhabitants)
53 Km N of L'Aquila (69753 inhabitants)
62 Km E of Terni (111501 inhabitants)
76 Km W of Montesilvano (53738 inhabitants)
82 Km E of Perugia (166134 inhabitants)
84 Km W of Pescara (121014 inhabitants)
87 Km NW of Chieti (51815 inhabitants)
90 Km S of Ancona (100861 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 2.2
ML-VAX 1.5
1990-10-15
03:48:27
42.82 13.313 3 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 128629
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-10-15 03:48:27 ± 0.158
Latitude 42.8200 ± 0.0080
Longitude 13.3130 ± 0.0121
Depth (km) 3 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 128629

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) 1325.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 86
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00170
Epicentral distance of station farthest from the epicenter (degree) 0.01052
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 128629
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:59:38

ML:1.5

Field Value
Value 1.5
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 128629
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(km) Takeoff_angle Residual Weight
--.AOI.Z. 1990-10-15T03:48:56.10 10.0 undecidable manual SG 16 0.7548 0.78 0
--.ARV.Z. 1990-10-15T03:48:54.43 10.0 undecidable manual SG 338 0.7326 0.01 0.6
--.MNS.Z. 1990-10-15T03:48:51.29 10.0 undecidable manual SG 227 0.6327 -0.16 0.5
--.SDI.Z. 1990-10-15T03:48:50.55 10.0 undecidable manual PN 161 1.1655 -0.42 0.5
--.ASS.Z. 1990-10-15T03:48:48.81 10.0 undecidable manual SG 296 0.5439 0.46 0.2
--.CIO.Z. 1990-10-15T03:48:43.20 10.0 undecidable manual SG 341 0.3885 0.14 0.9
--.AOI.Z. 1990-10-15T03:48:43.70 10.0 undecidable manual PG 16 0.7548 0 1.4
--.MNS.Z. 1990-10-15T03:48:42.20 10.0 undecidable manual PG 227 0.6327 0.55 0.3
--.ARV.Z. 1990-10-15T03:48:42.60 10.0 undecidable manual PG 338 0.7326 -0.58 0.3
--.ASS.Z. 1990-10-15T03:48:39.57 10.0 undecidable manual PG 296 0.5439 -0.11 1.5
--.CIO.Z. 1990-10-15T03:48:36.50 10.0 undecidable manual PG 341 0.3885 -0.13 2.9
--.ALP.Z. 1990-10-15T03:48:35.30 10.0 undecidable manual SG 102 0.1887 0.04 0.9
--.ALP.Z. 1990-10-15T03:48:32.20 10.0 undecidable manual PG 102 0.1887 0.08 3
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