Earthquake with magnitude of Md 2.4 on date 22-01-1995 and time 23:46:01 (Italy) in region 4 km E Montemonaco (AP)

A magnitude Md 2.4 earthquake occured in region: 4 km E Montemonaco (AP), on

  • 22-01-1995 22:46:01 (UTC)
  • 22-01-1995 23:46:01 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8870, 13.3690 at 18 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
Montemonaco AP 4 604 604
Montegallo AP 6 523 1127
Montefortino FM 7 1178 2305
Palmiano AP 8 196 2501
Comunanza AP 9 3166 5667
Roccafluvione AP 9 2010 7677
Venarotta AP 10 2066 9743
Amandola FM 11 3629 13372
Force AP 13 1354 14726
Acquasanta Terme AP 13 2916 17642
Montefalcone Appennino FM 14 424 18066
Arquata del Tronto AP 14 1178 19244
Smerillo FM 15 365 19609
Bolognola MC 17 142 19751
Monte San Martino MC 17 765 20516
Ascoli Piceno AP 17 49407 69923
Rotella AP 18 906 70829
Castelsantangelo sul Nera MC 18 281 71110
Sarnano MC 18 3264 74374
Santa Vittoria in Matenano FM 18 1330 75704
Penna San Giovanni MC 20 1108 76812
Ussita MC 20 444 77256
Valle Castellana TE 20 977 78233
Montelparo FM 20 778 79011

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km NW of Teramo (54892 inhabitants)
55 Km E of Foligno (57155 inhabitants)
60 Km N of L'Aquila (69753 inhabitants)
69 Km NE of Terni (111501 inhabitants)
76 Km NW of Montesilvano (53738 inhabitants)
82 Km S of Ancona (100861 inhabitants)
83 Km E of Perugia (166134 inhabitants)
84 Km NW of Pescara (121014 inhabitants)
88 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 2.4
ML-VAX 1.7
1995-01-22
22:46:01
42.887 13.369 18 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 222399
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1995-01-22 22:46:01 ± 0.722
Latitude 42.8870 ± 0.0317
Longitude 13.3690 ± 0.0605
Depth (km) 18 ± 6 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 222399

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) 6055.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 235
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) 0.7
Epicentral distance of station closest to the epicenter (degree) 0.00478
Epicentral distance of station farthest from the epicenter (degree) 0.01093
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 222399
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 20:30:08

ML:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 222399
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
--.SDI.Z. 1995-01-22T22:46:38.81 10.0 undecidable manual SN 163 1.2099 -0.97 0.1
--.MNS.Z. 1995-01-22T22:46:26.13 10.0 undecidable manual SG 224 0.7104 -0.7 0.5
--.SDI.Z. 1995-01-22T22:46:23.74 10.0 undecidable manual PN 163 1.2099 -0.02 1.6
--.ASS.Z. 1995-01-22T22:46:22.00 10.0 undecidable manual SG 288 0.5439 0.28 0.9
--.AQU.Z. 1995-01-22T22:46:20.14 10.0 undecidable manual SG 176 0.5328 -0.97 0.8
--.MNS.Z. 1995-01-22T22:46:17.24 10.0 undecidable manual PG 224 0.7104 0.97 1.3
--.AQU.Z. 1995-01-22T22:46:13.77 10.0 undecidable manual PG 176 0.5328 0.8 0.9
--.ASS.Z. 1995-01-22T22:46:12.80 10.0 undecidable manual PG 288 0.5439 -0.53 2
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download