Earthquake with magnitude of Md 2.5 on date 08-02-1988 and time 08:39:03 (Italy) in region Costa Marchigiana Fermana (Fermo)

A magnitude Md 2.5 earthquake occured in region: Costa Marchigiana Fermana (Fermo), on

  • 08-02-1988 07:39:03 (UTC)
  • 08-02-1988 08:39:03 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.2140, 13.8510 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
Porto San Giorgio FM 5 16121 16121
Porto Sant'Elpidio FM 9 26152 42273
Fermo FM 12 37655 79928
Altidona FM 13 3390 83318
Pedaso FM 13 2800 86118
Lapedona FM 13 1166 87284
Sant'Elpidio a Mare FM 13 17110 104394
Civitanova Marche MC 14 41983 146377
Monte Urano FM 15 8353 154730
Campofilone FM 15 1916 156646
Moresco FM 17 598 157244
Montegranaro FM 18 12990 170234
Monterubbiano FM 18 2230 172464
Massignano AP 19 1638 174102
Montefiore dell'Aso AP 20 2123 176225
Ponzano di Fermo FM 20 1674 177899
Torre San Patrizio FM 20 2048 179947

Municipalities with at least 50000 inhabitants

An earthquake occurred to
52 Km SE of Ancona (100861 inhabitants)
63 Km N of Teramo (54892 inhabitants)
82 Km NW of Montesilvano (53738 inhabitants)
88 Km NW of Pescara (121014 inhabitants)
97 Km SE of Fano (60888 inhabitants)
97 Km E of Foligno (57155 inhabitants)
99 Km N 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 2.5
ML-VAX 1.8
1988-02-08
07:39:03
43.214 13.851 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 62679
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-02-08 07:39:03 ± 0.278
Latitude 43.2140 ± 0.0105
Longitude 13.8510 ± 0.0204
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 62679

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) 2023.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 292
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
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) 0.00639
Epicentral distance of station farthest from the epicenter (degree) 0.01069
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 62679
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:59:34

ML:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 62679
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
--.MNS.Z. 1988-02-08T07:39:43.38 10.0 undecidable manual SN 225 1.1877 -0.2 0.5
--.ASS.Z. 1988-02-08T07:39:35.20 10.0 undecidable manual SG 259 0.8769 0.3 0.3
--.ARV.Z. 1988-02-08T07:39:29.20 10.0 undecidable manual SG 293 0.7104 -0.08 0.8
--.MNS.Z. 1988-02-08T07:39:26.75 10.0 undecidable manual PN 225 1.1877 0.16 1.4
--.ASS.Z. 1988-02-08T07:39:21.20 10.0 undecidable manual PG 259 0.8769 -0.27 0.9
--.ARV.Z. 1988-02-08T07:39:18.39 10.0 undecidable manual PG 293 0.7104 0.06 2.2
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